- Ho Research Group at CityU HK

News

Year 2017:

 

27.06.2017

Congrat to Changyong Lan for his work "Large-Scale Synthesis of Freestanding Layer-Structured PbI2 and MAPbI3 Nanosheets for High-Performance Photodetection" being accepted in Advanced Materials!

 

19.06.2017

Congrat to Ho Research Group for the collaborative research work "High-performance enhancement-mode thin-film transistors based on Mg-doped In2O3 nanofiber networks" being accepted in Nano Research!

 

19.06.2017

Congrat to Renjie Wei for his work "Is Platinum a Suitable Counter Electrode Material for Hydrogen Evolution Reaction?" being accepted in Science Bulletin!

 

02.06.2017

Congrat to Wei Gao for his work "Modulating Electronic Structure of CoP Electrocatalysts towards Enhanced Hydrogen Evolution by Ce Chemical Doping in both Acidic and Basic Media" being accepted in Nano Energy!

 

20.05.2017

Congrat to Lester Vinzons for his work "Unraveling the Morphological Evolution and Etching Kinetics of Porous Silicon Nanowires during Metal-Assisted Chemical Etching" being accepted in Nanoscale Research Letters!

 

02.05.2017

Congrat to Ming Fang and Guofa Dong for their work "Hierarchical Nanostructures: Design for Sustainable Water Splitting" being accepted in Advanced Energy Materials!

 

26.04.2017

Congrat to Guofa Dong and Ming Fang for their work "In-Situ Formation of Highly Active Ni-Fe based Oxygen-Evolving Electrocatalysts via Simple Reactive Dip-Coating" being accepted in Journal of Materials Chemistry A!

 

19.04.2017

Congrat to Ruoting Dong and Renjie Wei for their poster presentations at the Materials Research Scoiety (MRS) Meeting, Spring 2017 in Pheonix, Arizona, U.S.A.!

Ruoting Dong introduces the background of PbI2 nanostructures for photodetection during her poster presentation (left). Renjie Wei discusses the uniqueness of Co3O4 nanosheets for high-performance lithium storage (right).

 

11.04.2017

Congrats to Ning Han for his work "Controllable III-V Nanowire Growth via Catalyst Epitaxy" being featured as the "Front Cover" as well as the "Hot Paper" for the 2017 theme collection of Journal of Materials Chemistry C!

 

05.04.2017

Congrat to Fengyun Wang for her work "Manipulating III-V Nanowire Transistor Performance via Surface Decoration of Metal-Oxide Nanoparticles" being accepted in Advanced Materials Interfaces!

 

30.03.2017

Congrat to Zaixing Yang for his work "Complementary Metal Oxide Semiconductor-Compatible, High-Mobility, <111>-Oriented GaSb Nanowires Enabled by Vapor-Solid-Solid Chemical Vapor Deposition" being accepted in ACS Nano!

 

27.03.2017

Congrat to Ning Han for his work "Controllable III-V Nanowire Growth via Catalyst Epitaxy" being accepted in Journal of Materials Chemistry C!

 

10.03.2017

Group dinner gathering at The Great Shanghai Restaurant (Shenzhen) 深圳上海宾馆大上海酒樓 to celebrate the Year of Rooster 2017.

L-R: Xiaoguang Liang (PhD Student), Ziyao Zhou (PhD Student), Heng Zhang (Research Assistant), Ming Fang (Post-doctoral Researcher), Lei Shu (Research Assistant), Dr. Johnny Ho (Principal Investigator), SenPo Yip (PhD Student), Lifan Shen (Co-Advised PhD Student), Simon Cheung (Co-Advised Post-doctoral Researcher), Ruoting Dong (PhD Student), Dapan Li (Phd Student), Changyong Lan (Post-doctoral Researcher), Renjie Wei (PhD Student).

* It was a pity that Lester Vinzons (Co-Advised PhD Student), Wei Gao (Co-Advised PhD Student) and Guofa Dong (Co-Advised Post-doctoral Researcher) were absent.

 

01.02.2017

Congrat to Xiaoguang Liang for his work "Enhanced Self-Assembly of Crystalline, Large-Area and Periodicity-Tunable TiO2 Nanotube Arrays on Various Substrates" being accepted in ACS Applied Materials & Interfaces!

 

 

Year 2016:

 

06.12.2016

Congrat to Lifan Shen for her work "Recent developments in III–V semiconducting nanowires for high-performance photodetectors" being accepted in Materials Chemistry Frontiers!

 

19.09.2016

Congrat to SenPo Yip for his poster presentations at the European Materials Research Scoiety (EMRS) Meeting, Fall 2016 in Warsaw, Poland!

SenPo Yip introduces the background of how to modulate the nanowire transistor performance via molecular monolayers (the left poster) and further findings in GaSb nanowires for future nanoelectronics (the right poster).

 

13.09.2016

Group dinner gathering at Lucky Dragon 彩龍大酒樓 (Shek Kip Mei) to celebrate the Mid-Autumn Festival 2016.

1st row (L-R): Ziyao Zhou (PhD Student), Changyong Lan (Post-doctoral Researcher), Dr. Johnny Ho (Principal Investigator), SePo Yip (PhD Student), Dapan Li (Phd Student)

2nd row (L-R): Lei Shu (Research Assistant), Ming Fang (Post-doctoral Researcher), Renji Wei (PhD Student), Lifan Shen (Co-Advised PhD Student), Xiaoguang Liang (PhD Student), Guofa Dong (Co-Advised Post-doctoral Researcher), Zaixing Yang (Post-doctoral Researcher), Simon Cheung (Co-Advised PhD Student), Heng Zhang (Research Assistant), Ruoting Dong (PhD Student), Lester Vinzons (Co-Advised PhD Student).

* It was a pity that Wei Guo (Co-Advised PhD Student) was absent.

 

02.09.2016

Congrat to Xiaoguang Liang for his work "Inverted Silicon Nanopencil Array Solar Cells with Enhanced Contact Structures" being accepted in Scientific Reports!

 

25.08.2016

Congrats to Ruoting Dong for her award of Chow Yei Ching School of Graduate Studies Entrance Scholarship!

 

24.08.2016

Congrats to Sen Po Yip for his award of Research Tuition Scholarship and Outstanding Academic Performance Award!

 

12.08.2016

Congrat to Ho Research Group for the collaborative research work "High-performance ferroelectric polymer side-gated CdS nanowire ultraviolet photodetectors" being accepted in Advanced Functional Materials!

 

05.08.2016

Congrat to Fengyun Wang for her work "Diameter Dependence of Planar Defects in InP Nanowires" being accepted in Scientific Reports!

 

03.08.2016

Ruoting Dong joins the Ho Research Goup.

 

15.07.2016

Congrat to Ho Research Group for the collaborative research work "On-Nanowire Axial Heterojunction Design for High-Performance Photodetectors" being accepted in ACS Nano!

 

05.07.2016

Congrat to Ming Fang and Wei Gao for their work "Hierarchical NiMo-Based 3D Electrocatalysts for Highly-Efficient Hydrogen Evolution in Alkaline Conditions" being accepted in Nano Energy!

 

04.07.2016

Renjie Wei and Heng Zhang join the Ho Research Group.

 

29.06.2016

Congrat to Ho Research Group for the collaborative reserach work "Performance Limits of the Self-Aligned Nanowire Top-Gated MoS2 Transistors" being accepted in Advanced Functional Materials!

 

26.05.2016

Congrat to Ning Han for his work "Crystal Orientation Controlled Photovoltaic Properties of Multi-Layer GaAs Nanowire Arrays" being accepted in ACS Nano!

 

23.05.2016

Congrat to Ho Research Group for the collaborative research work "High-Sensitivity Floating-gate Phototransistors Based on WS2 and MoS2" being accepted in Advanced Functional Materials!

 

08.04.2016

Group dinner gathering at Pin Xiang Lou 品香楼 (Shek Kip Mei) to celebrate the tenured promotion of Dr. Ho to Associate Professor (effective July 1st 2016).

L-R: Hao Lin (Co-Advised Research Associate), Ziyao Zhou (PhD Student), Wei Gao (Co-Advised PhD Student), Simon Cheung (Co-Advised PhD Student), SePo Yip (PhD Student), Xiaoguang Liang (PhD Student), Guofa Dong (Co-Advised Post-doctoral Researcher), Lifan Shen (Co-Advised PhD Student), Dr. Johnny Ho (Principal Investigator), Ming Fang (Post-doctoral Researcher), Lei Shu (Research Assistant), Zaixing Yang (Post-doctoral Researcher), Dapan Li (Phd Student), Erjun Wang (group alumnus).

* It was a pity that Lester Vinzons (Co-Advised PhD Student) was absent.

 

05.04.2016

Congrats to Ho Research Group for the collaborative research work "Growth and photovoltaic properties of high-quality GaAs nanowires prepared by the two-source CVD" being accepted in Nanoscale Research Letters!

 

31.03.2016

Congrats to Lifan Shen, Dapan Li and Wei Guo for their poster presentations at the Materials Research Scoiety (MRS) Meeting, Spring 2016 in Phoenix, Arizona, USA!

Lifan Shen introduces the background of wrap-gated nanowire transistors during her oral poster presentation (top left). Dapan Li discusses the uniqueness of GaSb nanowires for practical applications (top right). Wei Guo brings up his research on CeO2 nanorods (bottom left). Dapan Li explains the advantages of GaAs nanowire arrays for flexible and transparent photovoltiac devices (bottom right).

 

24.03.2016

Congrats to Ho Research Group for the collaborative research work "Side-gated In2O3 Nanowire Ferroelectric FETs for High-Performance Non-volatile Memory Applications" being accepted in Advanced Science!

 

21.01.2016

Congrats to Ning Han for his work "Design and fabrication of 1-D semiconductor nanomaterials for high-performance photovoltaics" being accepted in Science Bulletin!

 

15.01.2016

Congrats to Dr. Ho for winning The President's Awards, recognizing his exemplary contributions to research and professional education at City University of Hong Kong!

 

11.01.2016

Group dinner gathering at Spring Deer 鹿鳴春飯店 (Tsim Sha Tsui) to celebrate New Year of 2016.

L-R: Ziyao Zhou (PhD Student), Ming Fang (Post-doctoral Researcher), Wei Gao (Co-Advised PhD Student), Lester Vinzons (Co-Advised PhD Student), Simon Cheung (Co-Advised PhD Student), Dapan Li (Phd Student), Dr. Johnny Ho (Principal Investigator), Lifan Shen (Co-Advised PhD Student), Guofa Dong (Co-Advised PhD Student), Sen Po Yip (PhD Student), Lei Shu (Research Assistant), Zaixing Yang (Post-doctoral Researcher).

* It was a pity that XiaoGuang Liang (PhD Student) was absent due to the conflicted class schedule.

 

 

Year 2015:

 

04.12.2015

Congrats to Ho Research Group for the collaborative research work "Dielectric Engineering of Boron Nitride/Hafnium Oxide Heterostructure for High-Performance Two-Dimensional Field Effect Transistors" being accepted in Advanced Materials!

 

09.10.2015

Congrats to Lifan Shen for her work "High-Performance Wrap-Gated InGaAs Nanowire Field-Effect Transistors with Sputtered Dielectrics", being accepted in Scientific Reports!

 

02.09.2015

Congrats to Ming Fang for his work "Area-Selective Atomic Layer Deposition: Conformal Coating, Sub-Nanometer Thickness-Control and Smart Positioning", being accepted in ACS Nano!

 

01.09.2015

Wei Gao joins the Ho Research Group.

 

24.08.2015

Congrats to Sen Po Yip and Simon Cheung for their award of Research Tuition Scholarship and Outstanding Academic Performance Award!

 

18.08.2015

Congrats to Ning Han for his work "High performance GaAs nanowire solar cells for flexible and transparent photovoltaics" being accepted in ACS Applied Materials & Interfaces!

 

18.08.2015

Congrats to Ho Research Group for the collaborative research work "Integration of High-k Oxide on MoS2 by Using Ozone Pre-treatment for high performance MoS2 top-gated transistor with thickness dependent carrier scattering Investigation" being accepted in Small!

 

17.08.2015

Congrats to Zaixing Yang for his work "Approaching the Hole Mobility Limit of GaSb Nanowires" being accepted in ACS Nano!

 

31.07.2015

Lester Vinzons joins the Ho Research Group.

 

06.07.2015

Ziyao Zhou joins the Ho Research Group.

 

18.06.2015

Congrats to HoYuen Cheung for his work "Modulating Electrical Properties of InAs Nanowires via Molecular Monolayers" being accepted in ACS Nano!

 

09.06.2015

Congrats to Guofa Dong and Ming Fang for their work "Insight into the Electrochemical Activation of Carbon-Based Cathodes for Hydrogen Evolution Reaction" being featured as the "Inside Back Cover" as well as the "Hot Paper" for the 2015 theme collection of Journal of Materials Chemistry A!

 

12.05.2015

Congrats to Ming Fang for his excellent oral and poster presentations at the European Materials Research Scoiety (EMRS) Meeting, Spring 2015 in Lille, France!

Ming Fang introduces the background of surfactant-assited CVD of small-diameter GaSb nanowires and nanoscale patterning during his oral and poster presentations

 

06.05.2015

Congrats to Guofa Dong and Ming Fang for their work "Insight into the Electrochemical Activation of Carbon-Based Cathodes for Hydrogen Evolution Reaction" being accepted in Journal of Materials Chemistry A!

 

01.05.2015

Congrat to Ho Research Group for the collaborative research work "Hydrogen gas sensor based on metal oxide nanoparticles decorated graphene transistor" being accepted in Nanoscale!

 

22.04.2015

Group dinner gathering at Tung Kong Hakka Chinese Restaurant (Tsun Wan) to celebrate Spring 2015.

L-R: Lifan Shen (Co-Advised PhD Student), XiaoGuang Liang (PhD Student), Dapan Li (PhD Student), Hao Lin (Research Assistant), Dr. ZaiXing Yang (Post-doctoral Researcher), Guofa Dong (Co-Advised PhD Student), Dr. Johnny Ho (Principal Investigator), Sen Po Yip (PhD Student), Simon Cheung (Co-Advised PhD Student), Ming Fang (PhD Student), Lei Shu (Research Assistant).

 

16.04.2015

Congrat to Ho Research Group for the collaborative research work "Thermoplasmonics-Assisted Nanoheterostructured Au-decorated CuInS2 Nanoparticles: Matching Solar Spectrum Absorption and its Application on Selective Distillation of Non-polar Solvent Systems by Thermal Solar Energy", being accepted in Nano Energy!

 

09.04.2015

Congrats to Senpo Yip, Guofa Dong and Simon Cheung for their excellent oral and poster presentations at the Materials Research Scoiety (MRS) Meeting, Spring 2015 in San Francsisco, USA!

Senpo Yip introduces the background of nanoscale patterning during his oral and poster presentations (top). Guofa Dong and Simon Cheung discuss their poster works during the conference (bottom).

 

20.02.2015

Congrats to Ning Han and Zaixing Yang for their work "Modulating the morphology and electrical properties of GaAs nanowires via the catalyst stabilization by oxygen" being accepted in ACS Applied Materials & Interfaces!

 

19.02.2015

Congrats to Ho Research Group for the collaborative research work "High-Responsivity Graphene/InAs Nanowire Heterojunction Near-Infrared Photodetectors with Distinct Photocurrent On/Off Ratio" being selected as the "Inside Front Cover" of Small!

 

 

Year 2014:

 

23.12.2014

Congrats to Ho Research Group for the collaborative research work "Anomalous Highly-Efficient InAs Nanowire Phototransistors Based on Majority Carrier Transport at Room Temperature" being selected as the "Back Cover" of Advanced Materials!

 

06.11.2014

Congrats to Ming Fang for his work "Polymer-Confined Colloidal Monolayer: A Reusable Soft Photomask for Rapid Wafer-Scale Nanopatterning", being accepted in ACS Applied Materials & Interfaces!

 

25.09.2014

Congrats to Ho Research Group for the collaborative research work "Anomalous Highly-Efficient InAs Nanowire Phototransistors Based on Majority Carrier Transport at Room Temperature" being accepted in Advanced Materials!

 

25.09.2014

Congrats to Ho Research Group for the collaborative research work "High-Responsivity Graphene/InAs Nanowire Heterojunction Near-Infrared Photodetectors with Distinct Photocurrent On/Off Ratio" being accepted in Small!

 

17.09.2014

Congrats to Hao Lin and Ming Fand for their work "Hierarchical Silicon Nanostructured Arrays via Metal-Assisted Chemical Etching" being accepted in RSC Advances!

 

16.09.2014

Congrats to Ming Fang for his work "Optical Nanoscale Patterning through Surface-Textured Polymer Films" being featured as the "Frontispiece Cover" of Advanced Optical Materials!

 

11.09.2014

Congrats to Zaixing Yang and Ning Han for their work "Surfactant-assisted Chemical Vapor Deposition of High-performance Small-diameter GaSb Nanowires" being accepted in Nature Communications!

 

25.08.02014

Congrats to Ming Fang for his award of Outstanding Academic Performance Award!

 

25.08.02014

Congrats to Sen Po Yip. Ming Fang and Simon Cheung for their award of Research Tuition Scholarship!

 

05.08.2014

Group dinner gathering at Joy Cuisine (FoTan) to celebrate Summer 2014.

L-R: Sen Po Yip (PhD Student), XiaoGuang Liang (PhD Student), Guofa Dong (Co-Advised PhD Student), Simon Cheung (Co-Advised PhD Student), Dr. Ning Han (Post-doctoral Researcher), Dr. ZaiXing Yang (Post-doctoral Researcher), Dr. Johnny Ho (Principal Investigator), Hao Lin (Research Assistant), Fei Xiu (PhD Student), Dapan Li (PhD Student), Lifan Shen (Co-Advised PhD Student), Erjun Wang (Co-Advised Research Assistant), Ming Fang (PhD Student).

 

15.07.2014

Congrats to Ho Research Group for the collaborative research work "Floating Gate Memory based Monolayer MoS2 Transistor with Metal Nanocrystals embedded in Gate Dielectrics" being accepted in Small!

 

01.07.2014

Xiaoguang Liang and Dapan Li join the Ho Research Group.

 

01.07.2014

Congrats to Ho Research Group for the collaborative research work "Interface Engineering for High-Performance Top-Gated MoS2 Field Effect Transistors" being accepted in Advanced Materials!

 

29.06.2014

Congrats to Ning Han for his work "Low-temperature growth of highly crystalline β-Ga2O3 nanowires by solid-source chemical vapor deposition" being accepted in Nanoscale Research Letters!

 

09.05.2014

Dr. Ho joins the editorial board of NPG Scientific Reports.

 

09.05.2014

Congrats to Xiaoling Shi, Guofa Dong and Ming Fang for their work "Selective n-Type Doping in Graphene via the Aluminum Nanoparticle Decoration Approach" being accepted in Journal of Materials Chemistry C!

 

06.05.2014

Congrats to Ming Fang for his work "Optical Nanoscale Patterning through Surface-Textured Polymer Films" being accepted in Advanced Optical Materials!

 

23.04.2014

Congrats to Ming Fang for his excellent presentations at the Materials Research Scoiety (MRS) Meeting, Spring 2014 in San Francsisco, USA!

 

20.04.2014

Congrats to Ho Research Group for the collaborative research work "Formation Mechanisms for the Dominant Kinks with Different Angles in InP Nanowires" being accepted in Nanoscale Research Letters!

 

03.04.2014

Congrats to Ho Research Group for the collaborative research work "Light Management with Nanostructures for Optoelectronic Devices" being accepted in Journal of Physical Chemistry Letters!

 

28.03.2014

Congrats to SenPo Yip for his award of Research Tuition Scholarship!

 

15.03.2014

Congrats to HoYuen Cheung for his work "Mechanistic Characteristics of Metal-Assisted Chemical Etching in GaAs" being accepted in Journal of Physical Chemistry C!

 

10.03.2014

Congrats to Ning Han for his work "Manipulating properties of nanowire transistors" being featured in SPIE Newsroom, March 10th 2014!

 

04.03.2014

Congrats to Ho Research Group for the collaborative research work "Single InAs Nanowire Room-Temperature Near-Infrared Photodetectors" being accepted in ACS Nano!

 

01.03.2014

Congrats to Hao Lin and Fei Xiu for their paper "Rational Design of Inverted Nanopencil Arrays for Cost-Effective, Broadband and Omnidirectional Light Harvesting" being accepted in ACS Nano!

 

27.02.2014

Congrats to Fei Xiu for her paper "Fabrication and Enhanced Light Trapping Properties of Three-dimensional Silicon Nanostructures for Photovoltaic Applications" being accepted in Pure and Applied Chemistry!

 

15.02.2014

Congrats to Ming Fang for his paper "III–V Nanowires: Synthesis, Property Manipulations and Devices Applications" being accepted in Journal of Nanomaterials!

 

20.01.2014

Congrats to Ho Research Group for the collaborative research work "Effect of negatively charged impurities on graphene magnetic rings" being accepted in Journal of the Physical Society of Japan!

 

 

Year 2013:

 

02.12.2013

Ho Research Group (Dr. Ho and 5 PhD students) visits Graduate School of Engineering at Shizuoka University, Hamamatsu, Japan, from Dec 2nd to Dec 8th, 2013.

Group photo taken towords the end of the symposium.

 

Photo taken at the main gate of Shizuoka University. L-R: Dr. Johnny Ho (Principal Investigator), Simon Cheung (Co-Advised PhD Student), Sen Po Yip (PhD student), Ming Fang (PhD Student), Fei Xiu (PhD Student), Guofa Dong (Co-Advised PhD Student)

 

Photo taken during the farewell party at Prof. Tatsuoka's house. L-R: Simon Cheung (Co-Advised PhD Student), Sen Po Yip (PhD student), Mrs. Tatsuoka (Prof. Tatsuoka's wife), Dr. Johnny Ho (Principal Investigator), Prof. Hirokazu Tatsuoka (our host), Ming Fang (PhD Student), Guofa Dong (Co-Advised PhD Student)

 

29.11.2013

Congrats to Ho Research Group for the collaborative research work "Effects of Nanoparticle Size and Cell Types on High Sensitivity Cell Detection using Localized Surface Plasmon Resonance Biosensor" being accepted in Biosensors and Bioelectronics!

 

29.11.2013

Group dinner gathering at Shatin Town Hall Maxim's Palace to celebrate Thanksgiving 2013.

L-R: Lifan Shen (Co-Advised PhD Student), Dr. ZaiXing Yang (Post-doctoral Researcher), Erjun Wang (Co-Advised Research Assistant), Ming Fang (PhD Student), Dr. Ning Han (Post-doctoral Researcher), Dr. Johnny Ho (Principal Investigator), Hao Lin (Research Assistant), KitWa Fok (Co-Advised Research Assistant), Simon Cheung (Co-Advised PhD Student), Fengyun Wang (Post-doctoral Researcher), Sen Po Yip (PhD Student), Fei Xiu (PhD Student), Jianan Hou (Post-doctoral Researcher), Guofa Dong (Co-Advised PhD Student)

 

13.11.2013

Congrats to Jianan Hou for his PhD degree awarded in the Congregation 2013!

L-R: Dr. Jianan Hou (Post-doctoral Researcher), Dr. Johnny Ho (Principal Investigator)

 

09.10.2013

Congrats to Zaixing Yang, Fengyun Wang and Ning Han for their paper "Crystalline GaSb nanowires synthesized on amorphous substrates: from the formation mechanism to p-channel transistor applications" being accepted in ACS Applied Materials & Interfaces!

 

23.09.2013

Congrats to Fengyun Wang for her work "Surface roughness induced electron mobility degradation in InAs nanowire" being featured in Nanotechweb, Sept 23rd 2013!

 

13.09.2013

Congrats to Zai-xing Yang and Ning Han for their work "Carbon doping of InSb nanowires for high-performance p-channel field-effect-transistors" being highlighted as a "HOT" article in Nanoscale, September 10th, 2013!

Highlight Nanoscale 2013

 

13.09.02013

Congrats to Xiu Fei for her award of Research Tuition Scholarship!

 

02.09.2013

Lifan Shen joins the Ho Research Group.

 

30.08.2012

Congrats to Ning Han for his paper "GaAs Nanowires: From Manipulation of Defect Formation to Controllable Electronic Transport Properties" being accepted in ACS Nano!

 

28.08.2012

Congrats to Xiu Fei for winning Outstanding Academic Performace Award!

 

06.08.2013

Congrats to Zai-xing Yang and Ning Han for their paper "Carbon doping of InSb nanowires for high-performance p-channel field-effect-transistors" being accepted in Nanoscale!

 

02.08.2013

Congrats to Jianan Hou for passing his PhD oral defense!

 

01.08.2013

Congrats to Fengyun Wang for her paper "Surface roughness induced electron mobility degradation in InAs nanowire" being accepted in Nanotechnology!

 

24.06.2013

Congrats to Ho Research Group for the collaborative research work "Rational Design of Sub-ppm Specific Gas Sensors Array based on Metal Nanoparticles Decorated Nanowire Enhancement-Mode Transistors" being accepted in Nano Letters!

 

24.06.2013

Congrats to Ho Research Group for the collaborative research work "Tailoring Electromagnetically-induced Transparency for Terahertz Metamaterials: From Diatomic to Triatomic Structural Molecules" being accepted in Applied Physics Letters!

 

20.06.2013

Congrats to Hao Lin, Ho-Yuen Cheung and Fei Xiu for their paper "Developing Controllable Anisotropic Wet Etching to Achieve Silicon Nanorods, Nanopencils and Nanocones for Efficient Photon Trapping" being accepted in Journal of Materials Chemistry A!

 

13.05.2013

Congrats to Ning Han, Fengyun Wang and Jianan Hou for their paper "Tunable Electronic Transport Properties of Metal-Cluster-Decorated III-V Nanowire Transistors" being accepted in Advanced Materials!

 

05.04.2013

Congrats to Jianan Hou for his excellent oral presentation "Stoichiometric Effect on Electrical, Optical, and Structural Properties of Composition-Tunable InxGa1-xAs Nanowires" at the Materials Research Scoiety (MRS) Meeting, Spring 2013 in San Francsisco, USA!

MRS 2013 Jared Talk 2

Jianan Hou introduces the background information of InGaAs nanowires during his presentation.

 

03.04.2013

Congrats to Jianan Hou for his excellent oral presentation "GaAs Nanowire Schottky Barrier Photovoltaics utilizing Au–Ga Alloy Catalytic Tips" at the Materials Research Scoiety (MRS) Meeting, Spring 2013 in San Francsisco, USA!

MRS 2013 Jared Talk 1

Jianan Hou discusses our growth technique in synthesizing GaAs NWs for solar cell applications.

 

02.04.2013

Congrats to Jianan Hou for their excellent poster presentations at the Materials Research Scoiety (MRS) Meeting, Spring 2013 in San Francsisco, USA!

MRS 2013 Jared Poster

Jianan Hou present their posters to the auidence during the meeting.

 

27.03.2013

Dr. Ho is invited to contribute an article discussing nanotechnology for mimicking gecko feet, featured in Young Post, South China Morning Post.

YoungPost-20130327

 

26.02.2013

Congrats to Ho Research Group for the collaborative research work "Stability and low-frequency noise in InAs NW parallel array thin-film transistors" being accepted in IEEE Electron Device Letters!

 

21.02.2013

Congrats to Jianan Hou and Fengyun Wang for their paper "Diameter dependence of electron mobility in InGaAs nanowires" being accepted in Applied Physics Letters!

 

24.01.2013

Group dinner gathering at Pier 88 - Guangdong Hot Pot Dim Sum Restaurant to celebrate Chinese New Year 2013.

Group Photo 2013 Jan

L-R: Guofa Dong (Co-Advised PhD Student), Dr. Xiaoling Shi (Co-Advised Post-doctoral Researcher), Ming Fang (PhD Student), KitWa Fok (Research Assistant), Dr. ZaiXing Yang (Co-Advised Post-doctoral Researcher), Fei Xiu (PhD Student), Dr. Ning Han (Post-doctoral Researcher), Dr. Johnny Ho (Principal Investigator), Sen Po Yip (Research Assistant), Hao Lin (Co-Advised Research Assistant), Simon Cheung (Co-Advised PhD Student), Jianan Hou (PhD Student), Fengyun Wang (Post-doctoral Researcher)

 

10.01.2013

Congrats to Jianan Hou, Ning Han and Fengyun Wang for the acceptance of their individual oral and poster presentations at the Materials Research Society (MRS) Meeting, Spring 2013 in San Francisco, USA!

 

Year 2012:

 

20.12.2012

Congrats to Ho Research Group for the collaborative research work "Influence of catalyst choices on Transport Behaviors of InAs NWs for High-Performance Nanoscale Transistors" being accepted in Physical Chemistry Chemical Physics!

 

10.12.2012

Congrats to Ho Research Group for the collaborative research work "Controllable Electrical Properties of Metal (Mg, Al and Ga) Doped In2O3 Nanowires for High Performance Enhancement-mode Transistors" being accepted in ACS Nano!

 

20.11.2012

Congrats to Fengyun Wang and KitWa Fok for their PhD and BSc degrees awarded in the Congregation 2012!

Grad 2012Group Photo 2012 Nov

Left Photo=> L-R: Dr. Johnny Ho (Principal Investigator), Ms. KitWa Fok (Research Assistant), Dr. Fengyun Wang (Post-doctoral Researcher)

Right Photo=> L-R: Dr. Xiaoling Shi (Co-Advised Post-doctoral Researcher), Guofa Dong (Co-Advised PhD student), ZaiXing Yang (Co-Advised Post-doctoral Researcher), KitWa Fok (Research Assistant),Hao Lin (Co-Advised Research Assistant), Dr. Fengyun Wang (Post-doctoral Researcher), Ming Fang (PhD Student), Simon Cheung (Co-Advised PhD Student), Dr. Johnny Ho (Principal Investigator), SenPo Yip (Research Assistant), Dr. Ning Han (Post-doctoral Researcher), Fei Xiu, (PhD Student), Jared Hou (PhD Student)

 

16.11.2012

Congrats to Ning Han for his paper "Manipulated Growth of GaAs Nanowires: Controllable Crystal Quality and Growth Orientations via Supersaturation-Controlled Engineering Process" being accepted in Crystal Growth and Design!

 

01.11.2012

Guofa Dong joins the Ho Research Group.

 

10.10.2012

Dr. Ho is invited to contribute an article discussing nanotechnology for future clothing, featured in Young Post, South China Morning Post.

Young Post 2012 

 

07.10.2012

Congrats to Ning Han for his paper "Large-Scale and Uniform Preparation of Pure-Phase Wurtzite GaAs NWs on Non-Crystalline Substrates" being accepted in Nanoscale Research Letters!

 

06.10.2012

Selected by New York Academy of Sciences and Japan Society for Promotion of Science (JSPS), Dr. Ho is invited to attend the Ninth Annual Meeting of the Science and Technology in Society (STS) forum, held in Kyoto, Japan, October 6th-9th, 2012, representing Young Scientists from Asia Pacific as Future Leaders. Attendees include Makiko Tanaka (Minister of Education, Culture, Sports, Science and Technology, Japan), Professor Jean-Lou Chameau (President, California Institute of Technology (Caltech)), Professor Yuichiro Anzai (President, JSPS) and other leaders from academic, political and business sectors.   

 

The STS forum was founded in 2003 with the objective of creating a global network and providing a framework for open discussions that promote progress in science and technology. The forum brings together key players from the scientific, political, and business sectors to discuss the promises and risks of science and technology within a globalized world. The STS forum and the New York Academy of Sciences invites 10 excellent young scientists from across the world each year to propose how their innovative research will contribute to the discussions.

STS 2012

Lunch meeting between Dr. Yuichiro Anzai (President, JSPS) and all Future Leaders 2012.

L-R: Dr. Paola Ayala (Europe), Dr. Mieko Kumasaki (Japan), Dr. Elisa Oricchio (North America), Dr. Christophe Detavernier (Europe), Dr. Yuichiro Anzai (President, JSPS), Dr. Luis Castro (Latin America), Dr. Etinosa Igbinosa (Africa), Dr. Rogerio Panizzutti (Developing World), Dr. Johnny Ho (Asia Pacific), Dr. Naota Hanasaki (Japan) 

 

28.09.2012

Congrats to Jianan Hou for his paper "Stoichiometric Effect on Electrical, Optical and Structural Properties of Composition Tunable InxGa1-xAs Nanowires" being accepted in ACS Nano!

 

27.09.2012

Dr. ZaiXing Yang joins the Ho Research Group.

 

03.09.2012

KitWa Fok joins the Ho Research Group.

 

01.09.2012

HoYuen (Simon) Cheung joins the Ho Research Group.

 

30.08.2012

Congrats to Fengyun Wang for passing her PhD oral defense!

 

22.08.02012

Congrats to Jianan Hou and Xiu Fei for their award of Research Tuition Scholarship!

 

20.08.2012

Congrats to Jianan Hou and Xiu Fei for winning Outstanding Academic Performace Award!

 

16.08.2012

Dr. Ho is interviewed and featured in Next Magazine discussing "Mysteries in Nanotechnology".

Next Magazine 2012

 

09.07.2012

Ming Fang joins the Ho Research Group.

 

05.07.2012

Hao Lin joins the Ho Research Group.

 

25.05.2012

Congrats to Ning Han for his paper "GaAs Nanowire Schottky Barrier Photovoltaics utilizing Au–Ga Alloy Catalytic Tips" being accepted in Applied Physics Letters!

 

20.04.2012

Congrats to Ning Han and Fengyun Wang for their paper "Controllable p-n Switching Bahaviors of GaAs Nanowires via an Interface Effect" being accepted in ACS Nano!

 

20.04.2012

Congrats to KitWa Fok (undergraduate student) for her superior-prize, "Synthesis, characterization and device applications of high mobility indium arsendie nanowires", awarded in the 22nd Fengru Cup of Beihang University!

Award 2012 KitWa Fok 

 

12.04.2012

Congrats to Jianan Hou for his excellent oral presentation "Synthesis and Characterizations of Ternary InGaAs Nanowires by a Two-Step Growth Method for High-Performance Electronic Devices " at the Materials Research Scoiety (MRS) Meeting, Spring 2012 in San Francsisco, USA!

Jared MRS 2012 dJared MRS 2012 b

Jianan Hou explains the crystal quality and stoichiometry of InGaAs nanowires during his presentation.

 

10.04.2012

Congrats to Fengyun Wang and Jianan Hou for their excellent poster presentations at the Materials Research Scoiety (MRS) Meeting, Spring 2012 in San Francsisco, USA!

Fengyun MRS 2012Jared MRS 2012 c

Fengyun Wang and Jianan Hou present their posters to the auidence during the meeting.

 

05.04.2012

Congrats to Jianan Hou for his work "Synthesis and Characterizations of Ternary InGaAs Nanowires by a Two-Step Growth Method for High-Performance Electronic Devices" featured in Nanomanufacturing Weekly, April 5th, 2012!

Nanomanufacturing Weekly April 5 2012 p1 Nanomanufacturing Weekly April 5 2012 p2Nanomanufacturing Weekly April 5 2012 p3

 

25.03.2012

Congrats to Jianan Hou for his paper "Synthesis and Characterizations of Ternary InGaAs Nanowires by a Two-Step Growth Method for High-Performance Electronic Devices" being accepted in ACS Nano!

 

15.03.2012

Congrats to Alvin Hui and Fengyun Wang for their paper "High-Performance Indium Phosphide Nanowires Synthesized on Amorphous Substrates: From formation mechanism to optical and electrical transport measurements" being accepted in Journal of Materials Chemistry!

 

12.03.2012

Congrats to Ning Han for his paper "Highly formaldehyde-sensitive, transition-metal doped ZnO nanorods prepared by plasma-enhanced chemical vapor deposition" being accepted in Sensors and Actuators B: Chemical!

 

15.01.2012

Congrats to Jianan Hou, Ning Han and Fengyun Wang for the acceptance of their individual oral and poster presentations at the Materials Research Society (MRS) Meeting, Spring 2012 in San Francisco, USA!

 

Year 2011:

 

18.12.2011

Group dinner gathering at Neway Karaoke Box to celebrate Christmas 2011.

Group Photo_Dec 2011

L-R: Dr. Xiaoling Shi (Co-Advised Post-doctoral Researcher), Fei Xiu (PhD Student), Fengyun Wang (Co-Advised PhD Student), Alvin Hui (Research Assistant), Dr. Johnny Ho (Principal Investigator), Sen Po Yip (Research Assistant), Jianan Hou (PhD Student), Dr. Ning Han (Post-doctoral Researcher)

 

02.11.2011

ASU-CityU 2011

Representatives from ASU and CityU met on Nov. 2 to formalize a collaboration on flexible electronics. From left to right: Dr. David Allee (Professor & Director, Flexible Display Center, ASU), Dr. Gregory Raupp (Vice President - Research & Technology, CityU), Dr. Sethuraman "Panch" Panchanathan (Deputy Vice President & University Chief Research Officer, ASU), and Dr. Johnny Ho (Assistant Professor, Physics and Materials Science, CityU).

 

11.10.2011

"Nanotechnology Boosts Solar Cell Efficiency", CityU Today, October 2011.

CityU Today 2011_Ho

 

25.09.2011

Congrats to Ning Han for his paper "One-dimensional nanostructured materials for solar energy harvesting" being accepted in Nanomaterials and Energy!

 

23.09.2011

Congrats to Fengyun Wang for her award of Research Tuition Scholarship!

 

23.09.2011

Congrats to Jianan Hou for his award of Research Tuition Scholarship!

 

19.09.2011

Dr. Xiaoling Shi joins the Ho Research Group.

 

12.09.2011

Congrats to Ning Han for his work "Crystal phase and growth orientation dependence of GaAs nanowires on NixGay seeds via Vapor-Solid-Solid mechanism" selected for the publication in Virtual Journal of Nanoscale Science & Technology!

 

09.09.2011

Congrats to Jianan Hou for his excellent oral presentation "Synthesis, growth mechanism and device characterization of Ni-catalyzed GaAs nanowires" at the International Conference on Nanoscience & Technology, China 2011 (ChinaNANO 2011) in Beijing, China!

Jared China Nano 2011

Jianan Hou explains the growth mechanism of nanowires during his presentation.

 

05.09.2011

Selected by Croucher Foundation, Dr. Ho is invited to attend UK-Hong Kong Frontiers of Science series held in Kalvi Royal Society International Centre at Chicheley Hall in Buckinghamshire, UK, September 5th-8th, 2011, representing Young Scientists from Hong Kong.

 

Frontiers of Science is an internation programme for outstanding early career scientists which was initiated by the US National Academy of Sciences in 1989 and has been adopted by the Royal Society in the UK and other national science academics and organizations such as the Alexander Von Humbolt Foundataion and the Chinese Academy of Sciences. 

UK-HK Frontiers of Science

Group photo taken in Kalvi Royal Society International Centre at Chicheley Hall.

 

15.08.2011

Sen Po Yip joins the Ho Research Group.

 

10.08.2011

Group dinner gathering at Hon Wo Korean Restaurant to celebrate Summer 2011.

group photo 201 July 

L-R: Dr. Ning Han (Post-doctoral Researcher), Jianan Hou (PhD Student), Alvin Hui (Research Assistant), Dr. Johnny Ho (Principal Investigator), Fengyun Wang (Co-Advised PhD Student), Fei Xiu (PhD Student)

 

09.08.2011

Congrats to Ning Han for his paper "Crystal phase and growth orientation dependence of GaAs nanowires on NixGay seeds via Vapor-Solid-Solid mechanism" being accepted in Applied Physics Letters!

 

30.07.2011

"Design of Nanostructured Materials for Photovoltaics", Graduate Studies & Research Newsletter, CityU HK, July 2011.

Newsletter 2011_Ho

 

26.07.2011

Congrats to Fei Xiu for her excellent oral presentation "Monolayer doping for cost-effective photovoltaics" at the Nineteenth Annual International Conference on COMPOSITES/NANO ENGINEERING (ICCE - 19) in Shanghai, China!

Fei Xiu ICCE19

Fei Xiu concentrates on her slides during the presentation.

 

24.07.2011

Congrats to Ho Research Group for the collaborative research work "Kinetic growth of self-formed In2O3 nanodots via phase segregation: Ni/InAs system" being accepted in ACS Nano!

 

19.05.2011

Congrats to Fengyun Wang for her paper "Highly active and enhanced photocatalytic silicon nanowire arrays" being accepted in Nanoscale!

 

18.05.2011

Congrats to Ning Han for his paper "Facile synthesis and growth mechanism of Ni-catalyzed GaAs nanowires on non-crystalline substrates" being accepted in Nanotechnology!

 

01.05.2011

The review paper "Self-assembly of one-dimensional nanomaterials for cost-effective photovoltaics" is now published in International Journal of Nanoparticles.

 

16.02.2011

Group dinner gathering at Shin Hing Chinese Restaurant to celebrate Chinese New Year of the Rabbit.

group photo 20110216 

L-R: Guangcun Shan (PhD Student), Jianan Hou (PhD Student), Dr. Ning Han (Post-doctoral Researcher), Alvin Hui (Research Assistant), Dr. Johnny Ho (Principal Investigator), Fei Xiu (Research Assistant), Fengyun Wang (Co-Advised PhD Student)

 

Year 2010:

 

09.11.2010

Congrats to Alvin Hui for successfully completing his MSc degree in Materials Engineering and Nanotechnology!

Group photo Alvin MSc

L-R: Fei Xiu (Research Assistant), Jianan Hou (PhD Student), Alvin Hui (Master Student), Dr. Ning Han (Post-doctoral Researcher), Dr. Johnny Ho (Principal Investigator), Fengyun Wang (Co-Advised PhD Student)

 

11.09.2010

Group lunch gathering at Shin Hing Chinese Restaurant.

Group Photo at Sept 11, 2010

L-R: Guangcun Shan (PhD Student), Alvin Hui (Master Student), Jianan Hou (PhD Student), Dr. Ning Han (Post-doctoral Researcher),Guangcun Shan (PhD Student), Alvin Hui (Master Student), Jianan Hou (PhD Student), Dr. Johnny Ho (Principal Investigator), Fengyun Wang (Co-Advised PhD Student), Fei Xiu (Research Assistant)

 

10.09.2010

Fei Xiu joins the Ho Research Group.

 

30.08.2010

Guangcun Shan joins the Ho Research Group.

Jianan Hou joins the Ho Research Group.

 

26.07.2010

Dr. Ning Han joins the Ho Research Group.

 

19.07.2010

Alvin Hui joins the Ho Research Group.

 

11.03.2010

The homepage of Ho Research Group is online.

 

01.03.2010

Dr. Johnny Ho joins the faculty of City University of Hong Kong (CityU HK), Department of Physics and Materials Science.