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Tian-Jiao Wen "Simple Non-fused Electron Acceptors Leading to Organic Photovoltaics with High Practical Figure-of-Merits"

Feb 17
February 17, 2021 12:00 pm - 1:00 pm
 

Guest talk

Tian-Jiao Wen, M.ScDepartment of PolymerScience and Engineering, Zhejiang University, Hangzhou, China

“Simple Non-fused Electron Acceptors Leading toOrganic Photovoltaics with High Practical Figure-of-Merits”


In recent years, the module synthesis of acceptor-donor-acceptor (A-D-A)non-fullerene acceptors (NFAs) has largely boosted the power conversionefficiencies (PCEs) of organic photovoltaics (OPVs). However, to constructmulti-ring fused NFAs typically involves multiple-step synthesis andpurification, potentially undermining OPVs from reaching the idealfigure-of-merits (FoMs) among the efficiency-stability-cost correlation. Inthis presentation, I will introduce the development of non-fused ring acceptors(NFRAs) in our group. Such incredibly simple NFRAs are obtained via shortsynthesis from single aromatic units, exhibiting an elongated exciton lifetimeand fast charge transfer rate in bulk heterojunction blends. They allowexhibiting high performance, stability, as well as the practical FoM amonghigh-performance electron acceptors

Reference

1.       Zhang, Z.; Zhang, S.; Liu, Z.-X.; Zhang,Z.; Li, Y.; Li, C.-Z.*; Chen, H.*, A Simple Electron Acceptor with UnfusedBackbone for Polymer Solar Cells. Acta Phys. -Chim. Sin. 2019, 35(4), 394-400.

2.       Yu, Z.-P.; Liu, Z.-X.; Chen, F.-X.; Qin,R.; Lau, T.-K.; Yin, J.-L.; Kong, X.; Lu, X.; Shi, M.; Li, C.-Z.*; Chen, H.,Simple non-fused electron acceptors for efficient and stable organic solarcells. Nat. Commun. 2019, 10, 2152.

3.       Wen, T. J.; Wang, D.; Tao,L.; Xiao, Y.; Tao, Y. D.; Li, Y.; Lu, X.; Fang, Y.*; Li, C. Z.*; Chen, H.;Yang, D., Simple Near-Infrared Electron Acceptors for Efficient Photovoltaicsand Sensitive Photodetectors. ACS Appl. Mater. Interfaces 2020, 12(35), 39515-39523.

4.       Wen, T.-J.; Liu, Z.-X.; Chen,Z.; Zhou, J.; Shen, Z.; Xiao, Y.; Lu, X.; Xie, Z.; Zhu, H.*; Li, C.-Z.*; Chen,H., Simple Non-Fused Electron Acceptors Leading to Organic Photovoltaics withHigh Practical Figure-of-Merits. Under review.


To join the meeting you can use https://fau.zoom.us/j/92092279001

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