Our Current Research Interest

Our current research focuses on high performance, low cost electronic materials and devices including Perovskite Solar Cells, Photodetectors,  Radiation detectors, and X-ray Imagers.  See our publication list for details. We train the next generation of scientists and engineers to help them succeed in very competitive job market as well as in future career, either in academia or private sectors. 

Perovskite Solar Cells

Perovskite materials are arising as a new generation of solution processable metal halide perovskite photovoltaic materials.Our research on perovskite solar cell involves in:

  • Understanding the fundamental material and devices physics, mainly the photon to charge carrier conversion,  to explore the theoretically attainable highest efficiency; 

  • Device design, material processing and material chemistry for the record power conversion efficiency of perovskite solar cells;

  • Understanding the physical and chemical properties of perovskites to enhance the stability of perovskites devices;

  • Scalable manufacturing of perovskite solar panels;

Weak light sensing

Photodetectors are sensor of light that convert optical signals into electric signals. There are generally two types of organic solid -state photodetectors: photoconductors (or photoresistors) and photodiodes (includes photovoltaic).  Photodiodes type photodetector typically has low noise and fast response but the responsivity is low. Photoconductor type photodetector has very large gain but generally slow response. We are working on a new type of organic semiconductor material based photodetector which combines the advantages of these two types of photodetectors. 

We are also studying very fast responding photodetectors with single photon detection capability at room temperature.

X-ray imaging /γ-ray spectroscopy

We are interested in developing perovskite materials based X-ray detectors for X-ray imaging and γ-ray radiation detectors for spectroscopy, which is based on our discovery of ultra-long carrier diffusion length in the strong radiation-stopping perovskites . 

We are developing perovskite pixel detectors and array detectors for X-ray imaging. The next generation of X-ray detectors will be much more sensitive, clearer due to the improved resolution, and cheaper.  

The perovskite gamma-ray single-photon detectors can potentially give high resolution gamma-ray spectroscopy, but are 100-1000 times cheaper than the state-of-the-art products. 

Highlight of Recent Publications

Group News

January 29, 2020

I hope so, but we have not.  Here are some exciting results on blading of perovskites on textured silicon cell to take advantage of both low cost/scalability blading method, and texture structure of silicon to reduce reflection loss.  

January 23, 2020

Yehao's work, "High-Speed, Room-Temperature Bladed perovskite films", published in Science Advances, is highlighted a "High Speed Films", by Giulia Tregnago, Editor or Nature Energy! 

January 17, 2020

Nanoer did again a very good summary of our achievement in 2019.  Here is the link. Thank you, Nanoer!    

December 13, 2019

"Large perovskite films for solar cells can now be rapidly manufactured. The new approach, which combines the right amounts of volatile and less volatile solvents in a blade-coating process, could be an important step towards the commercialisation of perovskite solar cells." by BY KIRA WELTER, Chemical World

November 19, 2019

Applied physical sciences professor Jinsong Huang talks about his work harvesting solar energy in a cheaper way than the current popular method.

November 19, 2019

Huang in 2019 highly cited list

Huang is listed in 2019 Highly Cited Researchers, in recognition of exceptional research performance demonstrated by production of multiple highly cited papers that rank in the top 1% for field and year in Materials Science.  What is more exciting is that five alumni from the Huang group also entered the list for the first time! Congratulations! 

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Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts

Shuang Yang, Shangshang Chen, Edoardo Mosconi, Yanjun Fang, Xun Xiao, Congcong Wang, Yu Zhou, Zhenhua Yu, Jingjing Zhao, Yongli Gao, Filippo De Angelis, Jinsong Huang†, Science, Vol. 365, Issue 6452, pp. 473-478, 2019.

In this work, we propose lead sulfate treatment on perovskite surface. An oxygen-containing lead salt layer would form protecting perovskite against many harmful stimuli under atmospheric and light irradiation conditions, and its passivation effect also improves the perovskite solar cells efficiency.

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