Issue 38, 2017

Room temperature nanoparticulate interfacial layers for perovskite solar cells via solvothermal synthesis

Abstract

We present a solvothermal synthetic route to produce monodisperse CuO nanoparticles (NPs) in the range of 5–10 nm that can be used as a hole selective interfacial layer between indium tin oxide (ITO) and the perovskite active layer for p–i–n perovskite solar cells by spin casting the dispersions at room temperature. The bottom electrode interface modification provided by spherical CuO-NPs at room temperature promotes the formation of high quality perovskite photoactive layers with a large crystal size and strong optical absorption. Furthermore, it is shown that the nanoparticulate nature of the CuO hole transporting interfacial layer can be used to improve light manipulation within the perovskite solar cell device structure. The corresponding p–i–n CH3NH3PbI3-based solar cells show high Voc values of 1.09 V, which is significantly higher compared to the Voc values obtained with conventional PEDOT:PSS hole selective contact based perovskite solar cells.

Graphical abstract: Room temperature nanoparticulate interfacial layers for perovskite solar cells via solvothermal synthesis

Supplementary files

Article information

Article type
Paper
Submitted
03 May 2017
Accepted
01 Sep 2017
First published
01 Sep 2017
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2017,5, 20381-20389

Room temperature nanoparticulate interfacial layers for perovskite solar cells via solvothermal synthesis

A. Savva, I. T. Papadas, D. Tsikritzis, G. S. Armatas, S. Kennou and S. A. Choulis, J. Mater. Chem. A, 2017, 5, 20381 DOI: 10.1039/C7TA03802J

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