Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

A Synergistic Strategy of Manipulating the Number of Selenophene Units and Dissymmetric Central Core of Small Molecular Acceptors Enables Polymer Solar Cells with 17.5 % Efficiency

Authors
Yang, CanAn, QiaoshiBai, Hai-RuiZhi, Hong-FuRyu, Hwa SookMahmood, AsifZhao, XinZhang, ShaowenWoo, Han YoungWang, Jin-Liang
Issue Date
8월-2021
Publisher
WILEY-V C H VERLAG GMBH
Keywords
central core engineering; dissymmetric strategy; polymer solar cells; selenophene substitution; small molecular acceptors
Citation
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.60, no.35, pp.19241 - 19252
Indexed
SCIE
SCOPUS
Journal Title
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume
60
Number
35
Start Page
19241
End Page
19252
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/137943
DOI
10.1002/anie.202104766
ISSN
1433-7851
Abstract
A dissymmetric backbone and selenophene substitution on the central core was used for the synthesis of symmetric or dissymmetric A-DA ' D-A type non-fullerene small molecular acceptors (NF-SMAs) with different numbers of selenophene. From S-YSS-Cl to A-WSSe-Cl and to S-WSeSe-Cl, a gradually red-shifted absorption and a gradually larger electron mobility and crystallinity in neat thin film was observed. A-WSSe-Cl and S-WSeSe-Cl exhibit stronger and tighter intermolecular pi-pi stacking interactions, extra S...N non-covalent intermolecular interactions from central benzothiadiazole, better ordered 3D interpenetrating charge-transfer networks in comparison with thiophene-based S-YSS-Cl. The dissymmetric A-WSSe-Cl-based device has a PCE of 17.51 %, which is the highest value for selenophene-based NF-SMAs in binary polymer solar cells. The combination of dissymmetric core and precise replacement of selenophene on the central core is effective to improve J(sc) and FF without sacrificing V-oc.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Science > Department of Chemistry > 1. Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetrics

Total Views & Downloads

BROWSE