Deakin University
Browse

File(s) under permanent embargo

Direct connection of an amine to oligothiophene to generate push-pull chromophores for organic photovoltaic applications

journal contribution
posted on 2019-03-01, 00:00 authored by A Agarwal, A K Hundal, Jingyu Chen, A Bilic, W Xiang, S V Bhosale, Jingliang LiJingliang Li, R A Evans, Akhil Gupta
© 2018 Elsevier Ltd Through the direct connection of the donor nitrogen atom to oligothiophenes, herein we report three novel, donor materials for evaluation in bulk-heterojunction solar cells. The direct substitution enhances the charge transfer transition, thus improving the light-harvesting ability of the target chromophores. The influence of various terminal acceptor functionalities on the optoelectronic and photovoltaic properties was systematically studied. The target chromophore, T3, bearing oxoindenemalononitrile acceptor unit afforded a power conversion efficiency of 6.12% when paired with the conventional acceptor, PC61BM, a result that is the highest in the current literature for push-pull chromophores.

History

Journal

Dyes and pigments

Volume

162

Pagination

315 - 323

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0143-7208

eISSN

1873-3743

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2018, Elsevier