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Issue 30, 2017
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Efficient perovskite photovoltaic devices using chemically doped PCDTBT as a hole-transport material

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Abstract

It is shown that by chemically doping the carbazole-based conjugated polymer PCDTBT using the molecular materials TBP, LiTFSI and FK209, its conductivity can be increased by a factor of 105 times. Such doped PCDTBT films are used as a hole transport material (HTM) for standard architecture (CH(NH2)2PbI3)0.85(CH3NH3PbBr3)0.15 perovskite solar cells (PSCs). We show that devices with optimised PCDTBT thickness and doping level achieve a peak power conversion efficiency (PCE) of 15.9%. We expect a number of related doped conjugated polymers to also be capable of acting as efficient HTMs for PSCs.

Graphical abstract: Efficient perovskite photovoltaic devices using chemically doped PCDTBT as a hole-transport material

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Supplementary files

Article information


Submitted
10 Apr 2017
Accepted
06 Jul 2017
First published
08 Jul 2017

J. Mater. Chem. A, 2017,5, 15714-15723
Article type
Paper

Efficient perovskite photovoltaic devices using chemically doped PCDTBT as a hole-transport material

M. Wong-Stringer, J. E. Bishop, J. A. Smith, D. K. Mohamad, A. J. Parnell, V. Kumar, C. Rodenburg and D. G. Lidzey, J. Mater. Chem. A, 2017, 5, 15714
DOI: 10.1039/C7TA03103C

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