Efficient planar-heterojunction perovskite solar cells achieved via interfacial modification of a sol-gel ZnO electron collection layer

Junghwan Kim, Geunjin Kim, Tae Kyun Kim, Sooncheol Kwon, Hyungcheol Back, Jinho Lee, Seoung Ho Lee, Hongkyu Kang, Kwanghee Lee

Research output: Contribution to journalArticlepeer-review

276 Scopus citations

Abstract

The importance of interfacial engineering as a new strategy for improving the power conversion efficiencies (PCEs) of planar-heterojunction (PHJ) perovskite solar cells is highlighted in this study. With our optimized interfacial modification, we demonstrated efficient PHJ perovskite solar cells with a high PCE of 12.2% using a sol-gel-processed ZnO ECL modified by [6,6]-phenyl C61 butyric acid methyl ester (PCBM).

Original languageEnglish
Pages (from-to)17291-17296
Number of pages6
JournalJournal of Materials Chemistry A
Volume2
Issue number41
DOIs
StatePublished - 7 Nov 2014

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