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Issue 60, 2017, Issue in Progress
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Enhanced charge collection and stability in planar perovskite solar cells based on a cobalt(iii)-complex additive

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Abstract

Chemical doping has emerged as a favourable method for tuning the electrical properties of the hole-transport layer (HTL) in perovskite solar cells. Herein, we demonstrated an efficient dopant, cobalt(III) complex tris[2-((1H-pyrazol-1-yl)-4-tert-butylpyridine)cobalt(III)tris(bis(trifluoromethylsulfonyl)imide)] (FK209), which exhibited concentration distribution characteristics. The interfacial charge collection is demonstrated to be enhanced. We obtained the optimal power conversion efficiency (PCE) of 17.34% by optimizing the Co-complex doping ratio. Moreover, we found that the doping of Co-complex into the HTL significantly improved the stability under a sensitive atmosphere.

Graphical abstract: Enhanced charge collection and stability in planar perovskite solar cells based on a cobalt(iii)-complex additive

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Supplementary files

Article information


Submitted
22 May 2017
Accepted
15 Jul 2017
First published
01 Aug 2017

This article is Open Access

RSC Adv., 2017,7, 37654-37658
Article type
Paper

Enhanced charge collection and stability in planar perovskite solar cells based on a cobalt(III)-complex additive

Y. Ma, J. Fan, C. Zhang, H. Li, W. Li and Y. Mai, RSC Adv., 2017, 7, 37654
DOI: 10.1039/C7RA05741E

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