Issue 8, 2012

2-(2,3,4,5,6-Pentafluorophenyl)-1H-benzo[d]imidazole, a fluorine-rich building block for the preparation of conjugated polymer donors for organic solar cell applications

Abstract

We have introduced the pentafluorophenyl substituted benzimidazole as a building block of conjugated polymers for optoelectronic applications. We present the synthesis of a copolymer bearing fluorene as the comonomer. A detailed characterization of the novel material including structural, electrochemical and optical (using absorption, emission and time-resolved photoluminescence techniques) properties as well as computational modeling is described. The polymer exhibits highly efficient photoluminescence quenching when blended with fullerene derivatives (PCBM). The experimental results are compared with the alternating fluorene copolymer (APFO-3) in order to identify structure and property relations with the novel synthesized conjugated polymer. Early photovoltaic performance data are presented and compared with the well established APFO-3 : PCBM material system.

Graphical abstract: 2-(2,3,4,5,6-Pentafluorophenyl)-1H-benzo[d]imidazole, a fluorine-rich building block for the preparation of conjugated polymer donors for organic solar cell applications

Supplementary files

Article information

Article type
Paper
Submitted
06 Apr 2012
Accepted
02 May 2012
First published
01 Jun 2012

Polym. Chem., 2012,3, 2236-2243

2-(2,3,4,5,6-Pentafluorophenyl)-1H-benzo[d]imidazole, a fluorine-rich building block for the preparation of conjugated polymer donors for organic solar cell applications

M. Neophytou, H. A. Ioannidou, T. A. Ioannou, C. L. Chochos, S. P. Economopoulos, P. A. Koutentis, G. Itskos and S. A. Choulis, Polym. Chem., 2012, 3, 2236 DOI: 10.1039/C2PY20198D

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