Great Women of Our Time Award, Science & Technology 2016

Associate Professor Ho Ghim Wei of the Engineering Science Programme, Department of Electrical & Computer Engineering, National University of Singapore, was the winner of Science & Technology, Great Women of Our Time Award 2016. The award was presented by Ms Indranee Rajah, Senior Minister of State, Ministry of Finance & Ministry of Law on the 29th September 2016.

Links:

NUS NEWS  [Read More]

NUS FOE NEWS  [Read More]

AsiaOne [Read More]

Women’s Weekly [Read More]

 


Magazine Press Release/News: Solar-Powered Desalination Produces Energy

Read the articles here:

Chemistry World Magazine [Read More]

Nanowerk Spotlight [Read More]

Water. desalination + reuse [Read More]

 


Tan Kah Kee Young Inventors’ Award 2016

Dr. Zhu Liangliang and Mr. Tan Chuan Fu research team of Associate Professor Ho Ghim Wei, Electrical and Computer Engineering, NUS have clinched the Tan Kah Kee Young Inventors’ Merit Award in the Open category.  The award was given out by Mr. Ng Chee Meng, Acting Minister for Education and Senior Minister of State, Ministry of Transport on the 28th May 2016 at Science Centre Singapore.

NUS FOE NEWS [Read More]


Prof. Akihiko Kudo, Tokyo University of Science and Prof. Susumu Saito, Nagoya University visit 


IES Prestigious Engineering Achievement Award 2015

Mr. Tan Chuan Fu and Associate Professor Ho Ghim Wei  won the IES Prestigious Engineering Achievement Award 2015 for their research on Self-powered hybrid cell with enhanced photocatalytic functionalities for hydrogen production and waste water treatment. This work demonstrates an innovative and contemporary multiple-renewable solar and vibrational energy powered catalysis system. It involves multifunctional nanomaterial innovation with water purification and hydrogen generation capabilities.


Invited lecture at The University of Tokyo, 2015

Prof. Kazunari Domen’s research group at Department of Chemical System Engineering, School of Engineering


A/Prof. Ho Ghim Wei was the Honoree Winner at JCI Ten Outstanding Young Persons (TOYP) Award Ceremony held on 29 May 2015

TOYP

Associate Professor Ho Ghim Wei, NUS Department of Electrical & Computer Engineering, received the honoree award (Scientific and/or Technological Development) at the Junior Chamber International (JCI) Ten Outstanding Young Persons (TOYP) 2015 award ceremony (29 May).

Read the articles here:

NUS ENG NEWS [Read More]

NUS ECE NEWS [Read More]


 

A/Prof Ho Ghim Wei featured on The Edge Singapore


 

L’Oréal honours NUS women scientists

The excellent work of NUS researchers has been recognised by the 2014 L’Oréal Singapore For Women In Science National Fellowships. Two Fellows were presented with the awards, which come with a grant of $30,000 each, on 3 December.

Associate Professor Ho Ghim Wei from the Department of Electrical & Computer Engineering was accorded the Physical & Engineering Science fellowship for her research in “Functional Nanomaterials for Photocatalysis Solar Hydrogen Production”.

Assoc Prof Ho’s work focuses on the development of nanostructured materials for photocatalytic applications. The synergistic combinations of low-cost aqueous synthesis, band gap engineering and materials functionalisation have been employed to rationally design advanced photocatalyst for energy generation and pollutant degradation applications.

She said: “Through my innovation and impact, in both education and research in nanomaterial science and engineering, I hope to contribute to advances in health and environmental benefits and bring about greater recognition of the under-represented women in this field.”

Read the various articles here:

NUS NEWS [Read More]

Asian Scientist [Read More]

NUS ENG NEWS [Read More]

Straits Times [Read More]

Lianhe Zaobao [Read More]


Green chemistry synthesis of nanocomposite graphene hydrogel with three-dimensional nano-mesopores for photocatalytic H2 production application

A research team led by Dr Ho Ghim Wei from the National University of Singapore Department of Electrical and Computer Engineering, the team has developed graphene hydrogel composite which is promising to generate and uptake of solar hydrogen via photocatalytic reaction.

This work involves designing and developing the first-of-its-kind self-contained media, graphene hydrogel nanocomposite that generates and stores H2. This work paves way for the H2 economy as opposed to current hydrocarbon economy, which has been proposed as the potential alternative energy strategy to address global energy crisis and environmental related issues. The solar-assisted process of generating H2 from water and sun, the ‘unlimited’ resources on earth, represents the most promising technique for the future clean energy production.

“Our important findings emphasize the tailoring graphene sheets to form three dimensional (3D) network and functionalizing-sensitizing with semiconductor photocatalyst and noble metal nanoparticles to enable visible light (as opposed to UV light) for photocatalytic H2 production based on complete solution process. Furthermore, 3D graphene hydrogel has been proven to uptake large quantity of water (96-98 %) which is used directly for water splitting. The evolved H2 molecules are adsorbed-trapped in the graphene framework which can be release upon mechanical agitation at room temperature and pressure.

Another key benefit is the “green” synthesis method which employs vitamin c, reducing agent to physically and chemically cross-linked graphene sheets. The environmentally friendly and solution based approach means that fabrication on an industrial scale will be feasible, which can potentially lead to much cheaper materials.

The team has published their research results in RSC advances and is preparing to file a US patent for their invention. They are also exploring new applications of graphene aerogel for efficient-compact heat exchangers in air-conditioning system and high storage supercapacitor applications based on their method.

REGI [Read More]


 

A/Prof Ho’s work on Transparent Conducting Oxides was featured by NUS.

 NUS News [Read More]

 


A/Prof Ho’s work on Transparent Conducting Oxides was featured by TODAY and the Faculty of Engineering, NUS

 

Today [Read More]
NUS ENG News [Read More]


 

A/Prof Ho awarded ESP Teaching Commendation Award

A/P Ho was awarded the ESP Teaching Commendation Award in recognition for displaying outstanding teaching ability and passion in value-adding to the learning of Engineering Science students.


 

Congratulations to Kevin Moe for winning the First Prize at the 2nd Graduate Student Symposium

Congratulations to Kevin Moe for winning the First Prize at the 2nd Graduate Student Symposium under the Microelectronic Technologies & Devices Track. His paper was titled “An Aqueous Route Towards 3-Dimensional Transparent Conducting Films on Glass for Photovoltaic Applications”. 14 winners were chosen from 180 presenters.


 

A/Prof Ho’s work on Energy was featured outside the Engineering Auditorium at NUS

A/P Ho Ghim Wei and her team focus their research in developing cost-effective three-dimensional transparent conductors using cheap aqueous method that can potentially replace conventional indium tin oxide (ITO) electrodes for displays, lighting, batteries to solar cells applications. The significant achievement can allow various electronics manufacturers to use the new design electrodes to make the same device at a lower cost and higher efficiency. This will greatly enhance the attractiveness of such unique electrodes in various electronics consumer market.


 

Congratulations to Kevin Moe and Lee Gah Hung for being awarded a prize at the IUMRS-ICYRAM 2012 Poster Award

Congratulations to Kevin Moe and Lee Gah Hung for being awarded a prize at the IUMRS-ICYRAM 2012 Poster Award for the paper entitled “Non-Planar Geometries of Solution Processable Transparent Conducting Oxide: from Film Characterization to Architectured Electrodes”.


A/Prof Ho and Kevin Moe’s, whose work on Transparent Conducting Oxides was featured by Renewable Energy Global Innovations.

“Scientists from the National University of Singapore (NUS), one of the world’s leading university, have demonstrated that it is possible to replace ITO in dye sensitized solar cell (DSSC) with 3-dimensional transparent conductors (TC) fabricated using a cheap aqueous method. Dr Ho Ghim Wei and her team successfully fabricated Ga : ZnO films directly on glass substrates via a low-temperature aqueous route for application in dye-sensitized solar cells. Preliminary electrical and optical characterization of the films showed that 85% transparency across the optical range with sheet resistances as low as 15 Ωsq−1 were achievable, making them comparable to commercial transparent conducting oxides. Novel non-planar transparent conducting electrodes consisting of pillars, cross-hatched trenches and pit structures were fabricated to produce films with increased surface roughness and superior light scattering capabilities which are essential for photovoltaic applications. The work concludes with proof of concepts demonstrating the feasibility of large-scale fabrication and the compatibility of the electrodes for dye-sensitized solar cells. This significant achievement can allow various electronics manufacturers to use the newly-designed electrodes to make the same device at a lower cost and higher efficiency (50-70%). This will greatly enhance the attractiveness of such unique electrodes in various electronics consumer market.

“ITO is expensive so we decided to develop solution processable electrodes consisting of architectured 3D structures with tunable optical and electrical properties” said Dr Ho Ghim Wei, the Principal investigator and Assistant Professor at the Electrical and Computer Engineering Department at NUS. “The TCs are designed to effectively scatter light and transport photogenerated electrons through homojunction electrodes which enhance electrical performance” said Kevin Moe, a graduate student working on this project.

Current electronic devices uses ITO as the electrode fabricated using vacuum process, which is not cost-effective. By employing an aqueous route, it is possible to make large area TC for DSCC and other devices.

Their research paper entitled “Non-Planar Geometries of Solution Processable Transparent Conducting Oxide: From Film Characterization to Architectured Electrodes ”was published in the Energy and Environmental Science journal (DOI: 10.1039/C2EE21296J) earlier this year. The scientists have since shown efficiencies that have exceeded the published results. The NUS scientists are also exploiting the developed materials for new applications that will benefit from the low cost and scalable process.”

REGI [Read More]

Inventors holding a glass panel coated with Ga: ZnO films and scanning electron images of 3D transparent conducting electrodes


“New Solution Processable 3D Transparent Conductive Film – Heads Up For Electronics Devices” was featured in Nanotechnology Now, The Nanotechnology, Printed Electronics World and Nanowerk.

 


Faculty Highlight – Designing flexible zinc oxide films for more innovative electronic devices 


NUS ENG NEWS [Read More]


 

“Non-Planar Geometries of Solution Processable Transparent Conducting Oxide: from Film Characterization to Architectured Electrodes” by Kevin et al. was published in Energy and Environmental Science. 

Transparent conducting Ga:ZnO films were synthesized directly on glass substrates via a low-temperature aqueous route for application in dye-sensitized solar cells. Preliminary electrical and optical characterization of the films showed that 85% transparency across the optical range with sheet resistances as low as 15 Ω sq−1 were achievable, making them comparable to commercial transparent conducting oxides. Novel non-planar transparent conducting electrodes consisting of pillars, cross-hatched trenches and pit structures were fabricated to produce films with increased surface roughness and enhanced light scattering capabilities which are essential for photovoltaic applications. The work concludes with proof of concepts demonstrating the feasibility of large-scale fabrication and the compatibility of the electrodes for dye-sensitized solar cells.

EES Article [Read More]

 


A/Prof Ho was awarded the NRF POC (6th Grant Call) - Active Nanopores Membrane; Integrated Catalytic Disinfectant and Sensory for Air/Water

The project aims to fabricate a multifunction membrane for enhanced photocatalytic disinfectant, anti-fouling (self-cleaning) and detection. It is noteworthy that most of the commercialized membranes are based on physical or passive filtration. There are some which emphasized on photocatalytic (active) filtration however lack of other functionalities such as detection capability and structural integrity. The proposed membrane was designed to have an optimum structural morphology and nanoparticles functionalization for optimized adsorption-desorption sensing and light absorption photocatalytic disinfectant properties.

NUS NEWS [Read More]


 

NUS Team Makes Cheap Power from Rainwater

Scientists at NUS have found a cheap way to convert rainwater into electricity and they are expanding their research to include sea water and wastewater. Published on The Straits Times, 2 July 2011, Home, pB14.

NUS NEWS [Read More]


 

VIP Visit

Professor Sir Mark E. Welland, Chief Scientific Advisor to the Minisitry of Defense, UK, visited the Nano Energy Lab on 3 June 2011.

Prof. Sir Mark Welland [Read More]


 

A/Prof Ho was awarded the Faculty Commendation Teaching Award in recognition for my dedication and commitment to the education of engineering students.


 

Congratulations to Ong Wei Li, who won the best poster award in International conference on Materials for Advanced Technologies (ICMAT) held from 28 June to 3 July 2009.


 

A/Prof Ho Ghim Wei was awarded the Faculty Innovative Teaching Award in recognition for her excellence in Integrative Learning.


 

A/Prof Ho’s work on Nanoflowers was featured by various media such as BBC, The Norvatis and The Daily Telegraphy, Science Central and Streats.

Read the various articles here:
BBC [Read More]
Science Central [Read More]
Visions of Science [Read More]
Streats [Read More]



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