Jump to main content
Jump to site search


Perovskite hybrid solar cells with a fullerene derivative electron extraction layer

Author affiliations

Abstract

Perovskite hybrid solar cells (pero-HSCs) have attracted great attention in the past 7 years. Boosting the efficiency of pero-HSCs is still one ongoing direction. In this study, we report efficient pero-HSCs with [6,6]-phenyl C61-butyric acid methyl ester (PC61BM) as an electron extraction layer (EEL), where the PC61BM EEL is processed from chlorobenzene mixed with pyridine solution (PC61BM-Py EEL) rather than from pure chlorobenzene solution (PC61BM EEL). It is found that the PC61BM-Py EEL exhibits dramatically enhanced electrical conductivity and has a smoother and denser thin film, as compared with that of the PC61BM EEL. Moreover, transient photovoltage and transient photocurrent measurements demonstrate that a long charge carrier lifetime and a short charge extraction time are observed for the pero-HSCs incorporated with the PC61BM-Py EEL, as compared with that with the PC61BM EEL, indicating that the charge carrier recombination is significantly reduced. As a result, more than 21.6% enhanced efficiency is observed for the pero-HSCs incorporated with the PC61BM-Py EEL. Our finding provides a simple but an effective way to significantly boost the efficiency of pero-HSCs.

Graphical abstract: Perovskite hybrid solar cells with a fullerene derivative electron extraction layer

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 07 Feb 2017, accepted on 23 Mar 2017 and first published on 29 Mar 2017


Article type: Paper
DOI: 10.1039/C7TC00597K
Citation: J. Mater. Chem. C, 2017, Advance Article
  •   Request permissions

    Perovskite hybrid solar cells with a fullerene derivative electron extraction layer

    W. Xu, X. Yao, T. Meng, K. Wang, F. Huang, X. Gong and Y. Cao, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC00597K

Search articles by author