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Title: High stability bilayered perovskites through crystallization driven self-assembly
Authors: Koh, Teck Ming
Huang, Junye
Neogi, Ishita
Boix, Pablo P.
Mhaisalkar, Subodh Gautam
Mathews, Nripan
Keywords: Engineering::Materials
Issue Date: 2017
Source: Koh, T. M., Huang, J., Neogi, I., Boix, P. P., Mhaisalkar, S. G., & Mathews, N. (2017). High stability bilayered perovskites through crystallization driven self-assembly. ACS Applied Materials & Interfaces, 9(34), 28743-28749. doi:10.1021/acsami.7b07780
Journal: ACS Applied Materials & Interfaces
Abstract: In this manuscript we reveal the formation of bilayered hybrid perovskites of a new lower dimensional perovskite family, (CHMA)2(MA)n-1PbnI3 with n = 1-5, with high ambient stability via its crystallization driven self-assembly process. The spun-coated perovskite solution tends to crystallize and undergo phase separation during annealing, resulting in the formation of 2D/3D bilayered hybrid perovskites. Remarkably, this 2D/3D hybrid perovskites possess striking moisture resistance and displays high ambient stability up to 65 days. The bilayered approach in combining 3D and 2D perovskites could lead to a new era of perovskite research for high-efficiency photovoltaics with outstanding stability, with the 3D perovskite providing excellent electronic properties while the 2D perovskite endows it moisture stability.
ISSN: 1944-8244
DOI: 10.1021/acsami.7b07780
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Journal Articles

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