Planar heterojunction perovskite/PC71BM solar cells with enhanced open-circuit voltage via a (2/1)-step spin-coating process

Chien Hung Chiang, Zong Liang Tseng, Chun Guey Wu

Research output: Contribution to journalArticlepeer-review

325 Scopus citations

Abstract

A two-step, spin-coating process to synthesize a high quality perovskite film at room temperature at ambient atmosphere is reported. Combining an optimized PEDOT:PSS hole-transport layer and a PC71BM acceptor, the device achieved a power conversion efficiency of 16.31% with a remarkably high Vocof 1.05 V and FF of 0.78. The efficiency reproducibility of the devices is also high: 80% of devices achieve efficiency higher than 15%. This journal is

Original languageEnglish
Pages (from-to)15897-15903
Number of pages7
JournalJournal of Materials Chemistry A
Volume2
Issue number38
DOIs
StatePublished - 14 Oct 2014

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