Though my early interests included quantum chemical modeling of electronic structure in condensed organic materials, my research is now centered on experimental studies of semiconducting and conducting organic and hybrid organic systems.

The approach is to do "basic" science on topics of technological importance. A wide variety of surface science techniques are used with emphasis on photoelectron spectroscopy and x-ray absorption, carried out at synchrotron radiation laboratories and using XPS/UPS equipment in our labs.



Tiankai Zhang, Feng Wang, Hak-Beom Kim, In-Woo Choi, Chuan Fei Wang, Eunkyung Cho, Rafal Konefal, Yuttapoom Puttisong, Kosuke Terado, Libor Kobera, Mengyun Chen, Mei Yang, Sai Bai, Bowen Yang, Jiajia Suo, Shih-Chi Yang, Xianjie Liu, Fan Fu, Hiroyuki Yoshida, Weimin Chen, Jiri Brus, Veaceslav Coropceanu, Anders Hagfeldt, Jean-Luc Bredas, Mats Fahlman, Dong Suk Kim, Zhang-Jun Hu, Feng Gao (2022) Ion-modulated radical doping of spiro-OMeTAD for more efficient and stable perovskite solar cells Science, Vol. 377, p. 495-501 Continue to DOI