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Issue 62, 2014
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High-performance hybrid perovskite solar cells with polythiophene as hole-transporting layer via electrochemical polymerization

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Abstract

Thin polythiophene film prepared via electrochemical polymerization has been successfully used as the hole-transporting layer in CH3NH3PbI3 perovskite solar cells, affording a series of ITO/polythiophene/CH3NH3PbI3/C60/BCP/Ag devices. The highest occupied molecular orbit (HOMO) and lowest unoccupied molecular orbit (LUMO) of the polythiophene film are determined as −5.20 eV and −3.12 eV, respectively, which match well with that of CH3NH3PbI3 perovskite material. In addition, a promising power conversion efficiency of 11.8%, featuring a high fill factor of 0.707, good open voltage of 1.03 V and short current density of 16.2 mA cm−2, has been obtained, which renders polythiophene as an effective competitor to spiro-OMeTAD in perovskite solar cells. Furthermore, this work provides a simple, prompt, controllable and economic approach for the preparation of hole-transporting layer, which would undoubtedly yield new insight into the industrial production of perovskite solar cells.

Graphical abstract: High-performance hybrid perovskite solar cells with polythiophene as hole-transporting layer via electrochemical polymerization

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Publication details

The article was received on 11 Jun 2014, accepted on 11 Jul 2014 and first published on 14 Jul 2014


Article type: Paper
DOI: 10.1039/C4RA05578K
RSC Adv., 2014,4, 33039-33046

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    High-performance hybrid perovskite solar cells with polythiophene as hole-transporting layer via electrochemical polymerization

    W. Yan, Y. Li, W. Sun, H. Peng, S. Ye, Z. Liu, Z. Bian and C. Huang, RSC Adv., 2014, 4, 33039
    DOI: 10.1039/C4RA05578K

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