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Issue 25, 2015
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Planar perovskite solar cells with 15.75% power conversion efficiency by cathode and anode interfacial modification

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Abstract

Anode modification by doping silver nano-particles (Ag NPs) into poly(3,4-ethylene dioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) and cathode interfacial modification by inserting solution-processed bathophenanthroline (sBphen) in CH3NH3PbI3−xClx based planar perovskite solar cells are investigated. Prior to the optical effect such as localized surface plasmon resonance, the Ag-NPs distributed in PEDOT:PSS mainly cause an improvement in the electrical property of PEDOT:PSS–Ag NPs composite films. The sBphen interfacial layer modified the surface morphology of perovskite/phenyl-C61-butyric acid methyl ester (PC61BM) films by filling the voids on the surface of perovskite/PC61BM effectively, which led to an obvious improvement in the fill factor. Accordingly, an efficient device with a power conversion efficiency of 15.75% was achieved due to the simultaneous cathode and anode interfacial modification.

Graphical abstract: Planar perovskite solar cells with 15.75% power conversion efficiency by cathode and anode interfacial modification

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Publication details

The article was received on 29 Mar 2015, accepted on 19 May 2015 and first published on 20 May 2015


Article type: Paper
DOI: 10.1039/C5TA02265G
J. Mater. Chem. A, 2015,3, 13533-13539

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    Planar perovskite solar cells with 15.75% power conversion efficiency by cathode and anode interfacial modification

    M. Qian, M. Li, X. Shi, H. Ma, Z. Wang and L. Liao, J. Mater. Chem. A, 2015, 3, 13533
    DOI: 10.1039/C5TA02265G

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