High stability bilayered perovskites through crystallization driven self-assembly

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 un...

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Main Authors: Koh, Teck Ming, Huang, Junye, Neogi, Ishita, Boix, Pablo P., Mhaisalkar, Subodh Gautam, Mathews, Nripan
Other Authors: School of Materials Science and Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/141105
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author Koh, Teck Ming
Huang, Junye
Neogi, Ishita
Boix, Pablo P.
Mhaisalkar, Subodh Gautam
Mathews, Nripan
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Koh, Teck Ming
Huang, Junye
Neogi, Ishita
Boix, Pablo P.
Mhaisalkar, Subodh Gautam
Mathews, Nripan
author_sort Koh, Teck Ming
collection NTU
description 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.
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spelling ntu-10356/1411052021-01-08T07:52:10Z High stability bilayered perovskites through crystallization driven self-assembly Koh, Teck Ming Huang, Junye Neogi, Ishita Boix, Pablo P. Mhaisalkar, Subodh Gautam Mathews, Nripan School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Materials Bilayered Perovskite Air Stability 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-06-04T02:48:35Z 2020-06-04T02:48:35Z 2017 Journal Article 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 1944-8244 https://hdl.handle.net/10356/141105 10.1021/acsami.7b07780 28799740 2-s2.0-85028731623 34 9 28743 28749 en ACS Applied Materials & Interfaces 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 https://doi.org/10.1021/acsami.7b07780 application/pdf
spellingShingle Engineering::Materials
Bilayered Perovskite
Air Stability
Koh, Teck Ming
Huang, Junye
Neogi, Ishita
Boix, Pablo P.
Mhaisalkar, Subodh Gautam
Mathews, Nripan
High stability bilayered perovskites through crystallization driven self-assembly
title High stability bilayered perovskites through crystallization driven self-assembly
title_full High stability bilayered perovskites through crystallization driven self-assembly
title_fullStr High stability bilayered perovskites through crystallization driven self-assembly
title_full_unstemmed High stability bilayered perovskites through crystallization driven self-assembly
title_short High stability bilayered perovskites through crystallization driven self-assembly
title_sort high stability bilayered perovskites through crystallization driven self assembly
topic Engineering::Materials
Bilayered Perovskite
Air Stability
url https://hdl.handle.net/10356/141105
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