报告人：高峰 教授（瑞典林雪平大学）

报告题目：Metal halide perovskites for solar cells and LEDs

报告时间：2024年4月19日上午10:00

报告地点：909-B厅

报告摘要：

Metal halide perovskites have shown great promise for a new generation of optoelectronic devices, including solar cells and light-emitting diodes (LEDs). For perovskite solar cells, I will talk about our efforts to improve the operational stability, mainly through developing a new doping strategy for the spiro-OMeTAD hole-transport layer. In addition to the radical, we include ionic salts can further modulate the work function with negligible effects on the film conductivity, critical for reaching optimal open-circuit voltage values by a favorable energetic level alignment. Our findings pave the way for achieving PSCs with high efficiencies and excellent stability at the same time. For perovskite LEDs, a unique feature of perovskites, compared with emissive materials used in other LEDs, is that they can also efficiently detect light, making it possible to develop new applications which are hardly possible for other LED technologies. By making use of this advantage, we recently develop multifunctional displays using highly photo-responsive perovskite LEDs as pixels. Our perovskite LED display can be simultaneously used as touch screen, fingerprint sensor, ambient light sensor, and image sensor without integrating any additional sensors.

个人简介 ：

Feng Gao is a professor and head of the Optoelectronics Unit at Linköping University in Sweden since 2020, and is now also a visiting professor at Westlake University. Prior to his position as the full professor at Linköping, he was an associate professor (2017-2020), an assistant professor (2015-2017), and a Marie Skłodowska-Curie postdoc researcher (2013-2015) at Linköping. He obtained his Ph.D. degree (2011) from the University of Cambridge, M.S. (2007) and B.S. (2004) degrees from Nanjing University.

He has been appointed as a Wallenberg Scholar since 2024. He received from the European Research Council (ERC) an ERC Consolidator Grant in 2022 and an ERC Starting Grant in 2016. He became a Swedish Foundation for Strategic Research (SSF) Future Research Leader in 2019, and a Wallenberg Academy Fellow in 2017. He is now the coordinator of a Wallenberg project with high scientific potential (2020-2025). He has been a steering committee member of the European Conference on Molecule Electronics since 2019, and an associate editor of Science China Materials since 2023. He was also an organizing committee member of the Nobel Symposium (Physics Class and Chemistry Class, 2023). He received the Tage Erlander Prize in Physics from the Royal Swedish Academy of Sciences in 2020 for ‘his fundamental understanding of working mechanisms of solar cells and light-emitting diodes’.

联系人：陈先凯 教授