Issue 25, 2015

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

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

Supplementary files

Article information

Article type
Paper
Submitted
29 Mar 2015
Accepted
19 May 2015
First published
20 May 2015

J. Mater. Chem. A, 2015,3, 13533-13539

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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