Issue 93, 2013
From the journal:

Chemical Communications

High open circuit voltage organic photovoltaic cells fabricated using 9,9′-bifluorenylidene as a non-fullerene type electron acceptor†

Hee Un Kim,a   Ji-Hoon Kim,a   Hongsuk Suh,a   Jeonghun Kwak,b   Dongwook Kim,c   Andrew C. Grimsdale,d   Sung Cheol Yoone  and  Do-Hoon Hwang*a  

* Corresponding authors

a Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Republic of Korea
E-mail: dohoonhwang@pusan.ac.kr
Fax: +82 51 516 4721
Tel: +82 51 510 2232

b Department of Electronic Engineering, Dong-A University, Busan 604-714, Republic of Korea

c Department of Chemistry, Kyonggi University, San 94-6, Iui-dong, Yeongtong-gu, Suwonsi, Gyeonggi 443-760, Republic of Korea

d School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798

e Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT), Daejeon 305-600, Republic of Korea

Abstract

We have found that 9,9′BF can be used as an electron acceptor for P3HT-based OPVs while similar devices using 4,4′BP do not show any photovoltaic effect. This can be related to the respective aromaticity and antiaromaticity of the reduced forms of 9,9′BF or 4,4′BP. The OPV device fabricated using P3HT and 9,9′BF exhibited a PCE of 2.28% with a Voc of 1.07 V, a Jsc of 5.04 mA cm−2, and a FF of 0.42.

Graphical abstract: High open circuit voltage organic photovoltaic cells fabricated using 9,9′-bifluorenylidene as a non-fullerene type electron acceptor

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Article information

DOI
https://doi.org/10.1039/C3CC46557H
Article type
Communication
Submitted
28 Aug 2013
Accepted
03 Oct 2013
First published
03 Oct 2013

Chem. Commun., 2013,49, 10950-10952

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High open circuit voltage organic photovoltaic cells fabricated using 9,9′-bifluorenylidene as a non-fullerene type electron acceptor

H. U. Kim, J. Kim, H. Suh, J. Kwak, D. Kim, A. C. Grimsdale, S. C. Yoon and D. Hwang, Chem. Commun., 2013, 49, 10950 DOI: 10.1039/C3CC46557H

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