Pinhole-free hole transport layers significantly improve the stability of MAPbI3-based perovskite solar cells under operating conditions

Luis K. Ono, Sonia R. Raga, Mikas Remeika, Andrew J. Winchester, Atsushi Gabe, Yabing Qi

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Pinhole-free 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-MeOTAD) hole transport layers (HTLs) were deposited on perovskite films. MAPbI3-based perovskite solar cells employing the pinhole-free HTL showed a prolonged lifetime under one sun and was operated at the maximum power point. The solar cell architecture (planar versus mesoporous-layers) was also observed to strongly influence the cell's stability.

Original languageEnglish
Pages (from-to)15451-15456
Number of pages6
JournalJournal of Materials Chemistry A
Issue number30
Publication statusPublished - 14 Aug 2015
Externally publishedYes

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