报告题目：ULTRASENSITIVE SOLUTION-PROCESSED INFRARED POLYMER PHOTODETECTORS 

    报 告 人：巩  雄  教授    

　　报告时间：6月27日（星期五）上午10:00   

　　报告地点：理化楼三楼多功能学术报告厅

    组    织： 清洁能源化学与材料实验室  

　　 Short Bio of Dr. Xiong Gong：

Dr. Gong is an Associate Professor in the Department of Polymer Engineering at the College of Polymer Science and Polymer Engineering, University of Akron. He is also an Adjunct Chair Professor in the State Key Laboratory of Luminescence Materials and Devices at the South China University of Technology, P. R. China. Prior to that, he was a senior research scientist in the Center for Polymers and Organic Solids at the University of California, Santa Barbara (UCSB), and a manager and senior scientist at the Cbrite Inc. from 2005 to 2010. He did his post-doctoral fellow with Professor Alan J Heeger (Noble Prize Winner) at UCSB. He obtained his Ph. D. in Physics from Nankai University, M. Sc. in Chemistry from Lanzhou University and B. Sc. in Chemistry from Northwest Normal University. He received many international and national awards including USA NSF CARRER award and China NSFC oversea outstanding Chinese Youngest Scientist award. He has accomplished over 150 articles published in the peer reviewed journals including in Science and Nature, with a peer citation over 10000 times. He earned an H-index of 45. He also contributed 32 granted/pending patents and 8 book chapters.  

　　ABSTRACT：Sensing from the ultraviolet (UV)-visible to IR is critical to environmental monitoring and remote sensing, fibre-optic communication, day and night-time surveillance, and emerging medical imaging modalities. A “breakthrough” technology would be enabled by a new class of photodetector that do not require cooling to obtain high detectivity; photodetectors which are fabricated by solution-processing to enable low-cost multi-color, high quantum efficiency, high sensitivity and high speed response over the broad spectral range. The availability of such photodetector for use at room temperature would offer new and important applications. In this presentation, I will present how we develop ultrasensitive solution-processed infrared polymer photodetectors. In the first part, I would like to present why is the polymer photodetectors, how to develop solution-processed polymer photodetectors with high external quantum efficiency and high detectivity. In the second part, infrared polymer photodetectors with an inverted device structure will be presented. In the last, I will share how to develop solution-processed ultrasensitive infrared hybrid polymer photodetectors with spectral response from 300 nm to 2000 nm. We conclude that high detectivity, wide spectral range, high photoresponsivity and detectivity of polymer photodetectors are compatible to or even better than the photodetectors fabricated from any inorganic materials.