Diindenothieno[2,3-b]thiophene        arene for efficient organic photovoltaics with an extra high open-circuit voltage of 1.14 ev

Yen-Ju Cheng; Sheng-Wen Cheng; Chih-Yu Chang; Wei-Shun Kao; Ming-Hung Liao; Chain-Shu Hsu

doi:10.1039/C2CC18189D

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Diindenothieno[2,3-b]thiophene arene for efficient organic photovoltaics with an extra high open-circuit voltage of 1.14 ev†

Yen-Ju Cheng,*^a Sheng-Wen Cheng,^a Chih-Yu Chang,^a Wei-Shun Kao,^a Ming-Hung Liao^a and Chain-Shu Hsu*^a

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* Corresponding authors

^a Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsin-Chu, Taiwan
E-mail: yjcheng@mail.nctu.edu.tw, cshsu@mail.nctu.edu.tw

Abstract

We report a novel diindenothieno[2,3-b]thiophene ladder-type hexacyclic arene for constructing a donor–acceptor copolymer PDITTDTBT. A device based on PDITTDTBT:PC₇₁BM exhibited a high V_oc of 0.92 V with an impressive PCE of 5.8%, while a PDITTDTBT:DMPCBA-based device showed an extra high V_oc of 1.14 V.

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Article information

DOI: https://doi.org/10.1039/C2CC18189D
Article type: Communication
Submitted: 31 Dec 2011
Accepted: 31 Jan 2012
First published: 14 Feb 2012

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Chem. Commun., 2012,48, 3203-3205

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Diindenothieno[2,3-b]thiophene arene for efficient organic photovoltaics with an extra high open-circuit voltage of 1.14 ev

Y. Cheng, S. Cheng, C. Chang, W. Kao, M. Liao and C. Hsu, Chem. Commun., 2012, 48, 3203 DOI: 10.1039/C2CC18189D

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Chemical Communications