Xiaohang Li

About Xiaohang Li

Xiaohang Li

Program Chair, Electrical and Computer Engineering

wide bandgap semiconductor optoelectronics power electronics

Professor Li is a leading scholar in the research of (ultra)wide bandgap semiconductors and high density stacked transistor IC that are bringing revolutionary impacts on the optoelectronic and electronic industries.

Articles

Related News

April 2026

Gallium oxide electronics withstand extreme cold

1 min read · Mon, Apr 27 2026

News Clip News

advanced semiconductors Gallium oxide

Robust semiconductor enables devices to operate close to absolute zero, with potential applications in space missions and quantum computing.

December 2025

KAUST alumnus Zhiyuan Liu receives top honor in solid-state lighting

2 min read · Wed, Dec 17 2025

Awards News

Micro-LEDs optical communication

KAUST alumnus Zhiyuan Liu (Ph.D. '25) has received the International Solid State Lighting Alliance’s Global SSL Award of Innovations for developing a new fabrication method that makes it easier to produce small, bright and energy-efficient micro-LED pixels.

May 2025

April 2025

January 2025

Haicheng's work on Performance Enhancement of n-type AlN Schottky Barrier Diodes Using Oxygen-rich Rapid Thermal Annealing Treatment was accepted by IEEE Transactions on Electron Devices!

1 min read · Tue, Jan 21 2025

News

Haicheng's work on Performance Enhancement of n-type AlN Schottky Barrier Diodes Using Oxygen-rich Rapid Thermal Annealing Treatment was accepted by IEEE Transactions on Electron Devices!

August 2024

A new path to high-efficiency micro-LEDs

1 min read · Mon, Aug 26 2024

News Clip News

A selective thermal oxidation that eliminates damage to sidewalls is set to enhance micro-LED efficiency.
Onward and upward to smaller faster devices

1 min read · Tue, Aug 13 2024

News Clip News

The key to achieving greatly increased capacity and efficiency in semiconductor technology could be to build upwards, in vertical stacks of thin film transistors.

July 2024

Zhiyuan's work on Significant improvement of n-contact performance and wall plug efficiency of AlGaN-based deep UV LEDs by atomic layer etching was accepted by Optics Letters !

1 min read · Tue, Jul 9 2024

News

Zhiyuan's work on Significant improvement of n-contact performance and wall plug efficiency of AlGaN-based deep UV LEDs by atomic layer etchingwas accepted by Optics Letters !

May 2024

Congratulations to Vishal on getting the PSE Dean's Award!

1 min read · Sun, May 19 2024

News

Congratulations to Vishal on getting the PSE Dean's Award!

April 2024

March 2024

February 2024

December 2023

October 2023

September 2023

Congratulations to Saravanan! His project Tasawwur D310 GPU: Energy Efficient AI system has been selected to feature in the 2023 edition of Prototypes for Humanity.

1 min read · Thu, Sep 28 2023

News

The unprecedented growth of Artificial Intelligence (AI) models, particularly transformer-based language models like GPT-3 and BERT, has ushered in the era of large-scale AI development. Training AI models using conventional 2D graphical processing unit (GPU) chips contribute significantly to carbon emissions. For instance, training a single ChatGPT-3 model using a conventional 2D chip GPU consumed 1.2-megawatt hours (MWh) and generated 552 tons of CO2 emissions, equivalent to 123 gasoline-powered passenger vehicles driven in one year. Moreover, training these AI models with GPUs using 2D

August 2023

July 2023

June 2023

March 2023

February 2023

Xiao's work on flexible self-powered DUV photodetectors with high responsivity utilizing Ga2O3/NiO heterostructure on buffered Hastelloy substrates was accepted by Applied Physics Letters!

1 min read · Tue, Feb 28 2023

News

Xiao's work on flexible self-powered DUV photodetectors with high responsivity utilizing Ga2O3/NiO heterostructure on buffered Hastelloy substrates was accepted by Applied Physics Letters! Please contact Prof. Li for more details.

December 2022

October 2022

September 2022

Chuanju's paper on origin of interfacial charges of Al2O3/Si and Al2O3/GaN heterogeneous heterostructures was accepted by Applied Surface Science!

1 min read · Mon, Sep 26 2022

News

Chuanju's paper on origin of interfacial charges of Al2O3/Si and Al2O3/GaN heterogeneous heterostructures was accepted by Applied Surface Science! Please contact Prof. Li for more details.

August 2022

Zahrah's paper on reflective metalens with enhanced off-axis focusing performance was accepted by Optics Express!

1 min read · Tue, Aug 2 2022

News

Zahrah's paper on reflective metalens with enhanced off-axis focusing performance was accepted by Optics Express! Please contact Prof. Li for more details.

July 2022

Yi's paper on ultrasensitive flexible κ-phase Ga2O3 Solar-blind photodetector was accepted by ACS Applied Materials & Interfaces!

1 min read · Thu, Jul 14 2022

News

Yi's paper on ultrasensitive flexible κ-phase Ga2O3 Solar-blind photodetector was accepted by ACS Applied Materials & Interfaces! Please contact Prof. Li for more details.

June 2022

Shibin's paper on band alignment of orthorhombic Ga2O3 with GaN and AlN has been accepted by Applied Surface Science!

1 min read · Sat, Jun 4 2022

News

Shibin's paper on band alignment of orthorhombic Ga2O3 with GaN and AlN has been accepted by Applied Surface Science! Please contact Prof. Li for more details.

April 2022

Chuanju's work on highly suppressed interface traps of Al2O3/GaN through interposing a stoichiometric Ga2O3 layer is accepted as a Rapid Communication for publication in the Japanese Journal of Applied Physics!

1 min read · Sun, Apr 17 2022

News

Chuanju's work on highly suppressed interface traps of Al2O3/GaN through interposing a stoichiometric Ga2O3 layer is accepted as a Rapid Communication for publication in the Japanese Journal of Applied Physics! Please contact Prof. Li for more details.

March 2022

Our patent on the BAlN HEMT technology is granted as the Japanese Patent 7024073!

1 min read · Tue, Mar 22 2022

News

Our patent on the BAlN HEMT technology is granted as the Japanese Patent 7024073!
The U.S. Patent 11,264,238 on Forming III-Nitride Alloys by Kaikai and Prof. Li is issued!

1 min read · Fri, Mar 4 2022

News

The U.S. Patent 11,264,238 on Forming III-Nitride Alloys by Kaikai and Prof. Li is issued!

December 2021

September 2021

July 2021

June 2021

April 2021

Maocheng's work on record short UVC wavelength TE lasing from GaN is accepted by ACS Photonics!

1 min read · Tue, Apr 13 2021

News

Maocheng's work on record short UVC wavelength TE lasing from GaN is accepted by ACS Photonics! Please contact Prof. Li for more details.

March 2021

February 2021

Mei's paper on carrier localization of lateral polarity junction has been accepted by Physica Status Solidi - Rapid Research Letters!

1 min read · Wed, Feb 24 2021

News

Mei's paper on carrier localization of lateral polarity junction has been accepted by Physica Status Solidi - Rapid Research Letters! Please contact Prof. Li for more details.

January 2021

December 2020

November 2020

Jith's paper on the APT detect analysis of BAlN grown by MOCVD is accepted by Applied Physics Letter!

1 min read · Mon, Nov 23 2020

News

Jith's paper on the APT detect analysis of BAlN grown by MOCVD is accepted by Applied Physics Letter! Please contact Prof. Li for more details.

September 2020

August 2020

July 2020

May 2020

February 2020

Ronghui's paper about the inverse design of plasmonic metasurfaces was accepted by Opt. Lett.!

1 min read · Tue, Feb 4 2020

News

Ronghui's paper about the inverse design of plasmonic metasurfaces by convolutional neural network was accepted by Opt. Lett.! Please contact Prof. Li for more info.

December 2019

The Semiconductor UV Photonics Feature Issue led by Prof Li is published in Photonics Research!

1 min read · Sun, Dec 1 2019

News

The Semiconductor UV Photonics Feature Issue led by Prof Li is published in Photonics Research! View the full paper here.

November 2019

Ronghui Won Oxford Instruments SEM Micrograph Competition!

1 min read · Thu, Nov 14 2019

News

Congratulations to Ronghui for winning Oxford Instruments SEM Micrograph Competition.

October 2019

Qian's paper about the impacts of electrode position on the deep UV LED performance is accepted by IEEE Electron Device Letters!

1 min read · Fri, Oct 18 2019

News

Deep UV LED

Qian's paper about the impacts of electrode position on the deep UV LED performance is accepted by IEEE Electron Device Letters!

September 2019

Maocheng's paper on deep UV laser based on GaN quantum wells is accepted by ACS Photonics!

1 min read · Fri, Sep 20 2019

News

deep uv laser

Maocheng's paper on deep UV laser based on GaN quantum wells is accepted by ACS Photonics.

August 2019

Democratizing electronics one step at a time

3 min read · Thu, Aug 1 2019

News

magnetism transducers sensors CMOS nanoelectronics flexible

"You would not believe how many amazingly talented people there are in the world, but they often are just not exposed to opportunities," noted Muhammad Mustafa Hussain, KAUST professor of electrical engineering and currently a visiting professor at the University of California, Berkeley. He is determined to try and change this—one step at a time.

July 2019

Flat lenses with a twist!

1 min read · Tue, Jul 30 2019

News

optics lenses electrical engineering

Overlaying two film layers patterned with a nanoscale array can manipulate the propagation of light to create a powerful ultrathin lens.
Manjari's paper on temperature dependent studies of Schottky barrier diodes is accepted by Journal of Alloys and Compounds!

1 min read · Fri, Jul 19 2019

News

Schottky barrier diodes

Manjari's paper on temperature-dependent studies of Schottky barrier diodes is accepted by the Journal of Alloys and Compounds!
Wei's paper on 3D band diagram is accepted by OSA's flagship journal Optica!

1 min read · Tue, Jul 16 2019

News

3D band diagram

Wei's paper on 3D band diagram is accepted by OSA's flagship journal Optica!
Yi's paper on N-polar AlGaN-based UV LED with Grading Quantum Barriers is accepted by Acta Photonica Sinica!

1 min read · Fri, Jul 5 2019

News

UV LED

Yi's paper on N-polar AlGaN-based UV LED with Grading Quantum Barriers is accepted by Acta Photonica Sinica!

May 2019

Ronghui's paper on new metalens architecture is accepted by Optics Letter!

1 min read · Fri, May 3 2019

News

new metalens architecture

Ronghui's paper on new metalens architecture is accepted by Optics Letter!

April 2019

Ronghui has successfully passed the Ph.D. Proposal Exam today! Congratulations!

1 min read · Mon, Apr 29 2019

News

Electromagnetics and optoelectronics Fluid Mechanics microfluidics

Ronghui has successfully passed the Ph.D. Proposal Exam today! Congratulations!

March 2019

February 2019

Zhongjie and Yi's paper on the first UV LED without Electron Blocking Layer is accepted by IEEE Photonics Journal!

1 min read · Mon, Feb 25 2019

News

UV LED

Zhongjie and Yi's paper on the first UV LED without Electron Blocking Layer is accepted by IEEE Photonics Journal!
Norman's paper on experimental determination of polarization field is accepted by Japanese Journal of Applied Physics!

1 min read · Wed, Feb 13 2019

News

polarization

Norman's paper on experimental determination of polarization field is accepted by Japanese Journal of Applied Physics!
Our works on polarization of BAlN and BGaN are cited by Wikipedia!

1 min read · Sun, Feb 3 2019

News

Pyroelectricity

Our works on polarization of BAlN and BGaN are cited by Wikipedia!

January 2019

We launch the first artificial intelligence (AI) tool for III-nitride semiconductors!

1 min read · Tue, Jan 29 2019

News

artificial intelligence III-nitride semiconductors

Since the research of III-nitride LED and lasers started decades ago, the device design has been largely determined by deliberate device simulation or referring to prior arts. Recently, the activities of artificial intelligence (AI) through machine learning (ML) such as AlphaGo has prompted us to think about integrating this powerful technique into the LED and laser research to make the research process more efficient with the eventual goal of improving device performance.

December 2018

Davide's paper about enhanced electro-optic performance of surface-treated AlGaN nanowires is accepted by Optical Materials Express!

1 min read · Wed, Dec 5 2018

News

nanowires

Davide's paper about enhanced electro-optic performance of surface-treated AlGaN nanowires is accepted by Optical Materials Express!

November 2018

October 2018

Manjari's paper about surface passivation process for AlGaN/GaN HEMT is accepted by Journal of Applied Physics!

1 min read · Wed, Oct 31 2018

News

Manjari's paper about surface passivation process for AlGaN/GaN HEMT is accepted by the Journal of Applied Physics!

September 2018

July 2018

June 2018

Haiding's paper on semiconductor UV laser is accepted by ACS Photonics

1 min read · Wed, Jun 20 2018

News

laser

Haiding's paper on semiconductor UV laser is accepted by ACS Photonics!

May 2018

Shivkant's paper on thermal transport of AlN thin film is accepted by ACS Applied Materials & Interfaces!

1 min read · Tue, May 15 2018

News

AIN thin film

Shivkant's paper on thermal transport of AlN thin film is accepted by ACS Applied Materials & Interfaces!
Wei and Haiding's paper on lateral polarity structure of AlGaN quantum wells is accepted by AFM!

1 min read · Tue, May 8 2018

News

Wei and Haiding's paper on lateral polarity structure of AlGaN quantum wells is accepted by AFM!

April 2018

March 2018

KAUST Discovery, Phys.org, and eeNews LEDLighting features "Cleaning nanowires to get out more light"

1 min read · Sun, Mar 4 2018

News

"A simple chemical surface treatment improves the performance of nanowire ultraviolet light-emitting diodes." "A technique for reducing the loss of light at the surface of semiconductor nanostructures has been demonstrated by scientists at KAUST." "Some materials can efficiently convert the electrons in an electrical current into light. These so-called semiconductors are used to create light-emitting diodes or LEDs: small, light, energy-efficient, long-lasting devices that are increasingly prevalent in both lighting and display applications." "Postdoc Haiding Sun and his KAUST colleagues

February 2018

January 2018

Jin's paper on chalcogenide-air system with photonic crystals is accepted by Photonics Research!

1 min read · Mon, Jan 29 2018

News

chalcogenide-air

Jin's paper on chalcogenide-air system with photonic crystals is accepted by Photonics Research!
Shahab's paper on using bending strain to improve UV LED efficiency is accepted by JPD!

1 min read · Fri, Jan 26 2018

News

UV LED

Shahab's paper on using bending strain to improve UV LED efficiency is accepted by JPD!
Taking control at the junction

1 min read · Sun, Jan 21 2018

News

electrical engineering Applied Physics

Fine tuning the composition of nitride alloys can further the development of optical and electronic interface devices.
Compound Semiconductor: KAUST Team Cleans Nanowires For More Efficient UV LEDs

1 min read · Sun, Jan 7 2018

News

UV LED nanowires

Compound Semiconductor: KAUST Team Cleans Nanowires For More Efficient UV LEDs

November 2017

September 2017

Prof Li delivered an invited talk at the 8th Asia-Pacific Workshop on Widegap Semiconductors in Qingdao, China!

1 min read · Mon, Sep 25 2017

News

workshop Widegap Semiconductors

Prof Li delivered an invited talk at the 8th Asia-Pacific Workshop on Widegap Semiconductors in Qingdao, China!
Xiaobin's (PL) paper based on UVB LED communication got accepted by Optics Express!

1 min read · Wed, Sep 6 2017

News

UVB LED

Xiaobin's (PL) paper based on UVB LED communication got accepted by Optics Express!

August 2017

July 2017

Shuo's (ASU) paper about the crystal structure of BAlN thin films gets accepted by Journal of Crystal Growth!

1 min read · Tue, Jul 18 2017

News

Shuo's (ASU) paper about the crystal structure of BAlN thin films gets accepted by the Journal of Crystal Growth!
Keeping the heat out

1 min read · Sat, Jul 1 2017

News

electrical engineering nanoscience physics

Insights into the thermal behavior of metal-nitride nanowires could open new avenues in optical electronics.

June 2017

Professor Li delivered an invited talk on deep UV lasers and BAlN at ICMAT in Singapore!

1 min read · Thu, Jun 22 2017

News

UV Lasers

Professor Li delivered an invited talk on deep UV lasers and BAlN at ICMAT in Singapore!
Aditya's (PL) paper about nanocluster in III-nitride nanowires gets accepted by the Journal of Nanophotonics!

1 min read · Tue, Jun 13 2017

News

III-nitride nanowires

Aditya's (PL) paper about nanocluster in III-nitride nanowires gets accepted by the Journal of Nanophotonics!

May 2017

April 2017

January 2017

ASL welcomes the fifth intern student, Yangrui!

1 min read · Tue, Jan 17 2017

News

internships

ASL welcomes the fifth intern student, Yangrui!

December 2016

Our funding proposal has been accepted for the 1st GCC Research Program!

1 min read · Thu, Dec 1 2016

News

GCC Research Program

Our funding proposal has been accepted for the 1st GCC Research Program!

November 2016

Prof Li delivered an invited talk at the KACST-CNRS Workshop

1 min read · Tue, Nov 22 2016

News

workshop

Prof Li delivered an invited talk at the KACST-CNRS Workshop
ASL welcomes the fourth intern student, Wenzhe!

1 min read · Sun, Nov 6 2016

News

internships

ASL welcomes the fourth intern student, Wenzhe!

August 2016

Prof Li presented an invited talk at the IWUMD conference in Beijing, China

1 min read · Tue, Aug 2 2016

News

conference

Prof Li presented an invited talk at the IWUMD conference in Beijing, China.

June 2016

ASL welcomes the second PhD student Kuang-Hui Li

1 min read · Wed, Jun 1 2016

News

ASL welcomes the second PhD student Kuang-Hui Li.

January 2016

Prof Li presented invited talks at CSU and NUDT in Changsha, China

1 min read · Thu, Jan 14 2016

News

LED laser solar cells

Prof Li presented invited talks at CSU and NUDT in Changsha, China.
Prof Li presented an invited talk at Shanghai Institute of Technical Physics of Chinese Academy of Sciences

1 min read · Mon, Jan 11 2016

News

Prof Li presented an invited talk at Shanghai Institute of Technical Physics of Chinese Academy of Sciences.
Prof Li presented an invited talk at the University of Electronic Science and Technology of China in Chengdu, China

1 min read · Mon, Jan 4 2016

News

Prof Li presented an invited talk at the University of Electronic Science and Technology of China in Chengdu, China.

December 2015

Prof Li presented several invited talks at HUST, WHU, and WNLO in Wuhan, China

1 min read · Sun, Dec 27 2015

News

Prof Li presented several invited talks at HUST, WHU, and WNLO in Wuhan, China.
Our works on deep UV surface stimulated emission is published in the latest issue of Applied Physics Letter

1 min read · Mon, Dec 14 2015

News

deep uv surface

Our works on deep UV surface stimulated emission is published in the latest issue of Applied Physics Letter.
Prof Li presented an invited talk at the 8th International Conference of the African Materials Research Society

1 min read · Wed, Dec 9 2015

News

conference

Prof Li presented an invited talk at the 8th International Conference of the African Materials Research Society.

October 2015

October 2014

Compound Semiconductor highlighted Prof Li’s pioneering works related to III-nitride deep UV lasers on sapphire substrate

1 min read · Fri, Oct 17 2014

News

deep uv laser

Compound Semiconductor highlighted Prof Li’s pioneering works related to III-nitride deep UV lasers on sapphire substrate.
Prof Li received the IEEE Photonics Society Graduate Student Fellowship

1 min read · Mon, Oct 13 2014

News

fellowship

Prof Li received the IEEE Photonics Society Graduate Student Fellowship.

May 2013

Prof Li received the SPIE D.J. Lovell Scholarship

1 min read · Wed, May 22 2013

News

scholarships

Prof Li received the SPIE D.J. Lovell Scholarship.