4.6 Article

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

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 30, Pages 15451-15456

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03443d

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Funding

  1. Energy Materials and Surface Sciences Unit of the Okinawa Institute of Science and Technology Graduate University

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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. MAPbI(3)-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.

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