关于举行中科院化学所王朝晖研究员学术报告的通知
报告题目:Multi-dimensional Rylene Dyes for High Performance Solar Cells
报 告 人:王朝晖 研究员(中科院化学所)
报告时间:2017年3月21日(周二)上午10:00
报告地点:北区发光材料与器件国重 502会议室
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报告摘要:
Non-fullerene acceptors have recently attracted tremendous interest due to their potential as alternatives to fullerene derivatives in bulk heterojunction organic solar cells. Here we report two novel perylene bisimide (PBI) acceptors, SdiPBI-S, SdiPBI-Se, in which sulfur and selenium atoms were introduced into the perylene core. With a well-established wide-bandgap polymer (PDBT-T1) as the donor, a high efficiency of 7.2%-8.4% with an unprecedented high FF of 70.2% is achieved for solution-processed non-fullerene organic solar cells.
Furthermore, two kinds of conjugated C3-symmetric perylene dyes, namely triperylene hexaimides (TPH) and selenium-annulated triperylene hexaimides (TPH-Se), are efficiently synthesized. Single-crystal X-ray diffraction studies show that TPH displays an extremely twisted three-bladed propeller configuration and a unique 3D network assembly in which three PBI subunits in one TPH molecule have strong π-π intermolecular interactions with PBI subunits in neighbouring molecules. TPH and TPH-Se acceptors-based solar cells show high power conversion efficiency of 8.28% and 9.28%, respectively, which mainly results from the combined properties of broad and strong absorption ability, appropriate LUMO level, desirable aggregation, high electron mobility and good film morphology with the polymer donor. Our results suggest that non-fullerene acceptors have the enormous potential to rival or even surpass the performance of their fullerene counterparts.
个人简介:
个人简历:
Prof. Dr. Zhaohui Wang
Institute of Chemistry
Chinese Academy of Sciences
Zhongguancun North First Street No. 2
Beijing, P.R. China
Phone: +86 (0)10-62653617
e-mail: wangzhaohui@iccas.ac.cn
Education and Scientific Career
1986 -1990 Department of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
1992 -1995 Department of Fine Chemicals, East China University of Science and Technology, Shanghai, China(Prof. Dr. Kongchang Chen and Prof. Dr. He Tian)
1996 -1999 Department of Applied Chemistry, East China University of Science and Technology, Shanghai, China(Prof. Dr. He Tian and Prof. Dr. Kongchang Chen)
1999 – 2001 Postdoctoral-fellowship, Max-Planck Institute for Polymer Research, Mainz, Germany(Prof. Dr. Klaus Muellen)
2001 – 2005 Research Scientist, Max-Planck Institute for Polymer Research, Mainz, Germany(Prof. Dr. Klaus Muellen)
2005 – Professor, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
2013 – Adjunct Professor, East China University of Science and Technology, Shanghai, China
2015 – Professor, University of Chinese Academy of Sciences, Beijing, China
2016 – Chair Professor, Northwestern Polytechnical University, Xian, China
Awards and Honours
2006 Hundreds Talents Scholar of The Chinese Academy of Sciences
2010 Excellent Hundreds Talents Scholar of The Chinese Academy of Sciences
2012 National Natural Science Fund for Distinguished Yong Scholars
2014 7th Chinese Chemical Society – BASF Young Innovation Prize
2016 Youth Science and Technology Innovation Leader, MoST
Research
Prof. Wang’s group has synthesized numerous extended pi-conjugated systems with novel properties. His work has displayed not only a great creativity in the synthesis of exciting new molecules but also real insight in structure/properties relationships and also the application to organic electronics. He is the author or coauthor of more than 140 articles in leading chemistry journals. The publications have been cited more than 3500 times.
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