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Issue 23, 2016
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Highly stable perovskite solar cells with an all-carbon hole transport layer

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Abstract

Nano-carbon materials (carbon nanotubes, graphene, and graphene oxide) have potential application for photovoltaics because of their excellent optical and electronic properties. Here, we demonstrate that a single-walled carbon nanotubes/graphene oxide buffer layer greatly improves the photovoltaic performance of organo-lead iodide perovskite solar cells. The carbon nanotubes/graphene oxide buffer layer works as an efficient hole transport/electron blocking layer. The photovoltaic conversion efficiency of 13.3% was achieved in the organo-lead iodide perovskite solar cell due to the complementary properties of carbon nanotubes and graphene oxide. Furthermore, the great improvement of photovoltaic performance stability in the perovskite solar cells using carbon nanotubes/graphene oxide/polymethyl methacrylate was demonstrated in comparison with that using a typical organic hole transport layer of 2,2′,7,7′-tetrakis-(N,N-di-4-methoxyphenylamino)-9,9′-spirobifluorene.

Graphical abstract: Highly stable perovskite solar cells with an all-carbon hole transport layer

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Publication details

The article was received on 09 Feb 2016, accepted on 11 May 2016 and first published on 12 May 2016


Article type: Paper
DOI: 10.1039/C6NR01152G
Citation: Nanoscale, 2016,8, 11882-11888
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    Highly stable perovskite solar cells with an all-carbon hole transport layer

    F. Wang, M. Endo, S. Mouri, Y. Miyauchi, Y. Ohno, A. Wakamiya, Y. Murata and K. Matsuda, Nanoscale, 2016, 8, 11882
    DOI: 10.1039/C6NR01152G

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