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Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells

Many organic cations in halide perovskites have been studied for their application in perovskite solar cells (PSCs). Most organic cations in PSCs are based on the protic nitrogen cores, which are susceptible to deprotonation. Here, a new candidate of fully alkylated sulfonium cation (butyldimethylsu...

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Autores principales: Kim, Bohyung, Kim, Maengsuk, Lee, Jun Hee, Seok, Sang Il
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7001633/
https://www.ncbi.nlm.nih.gov/pubmed/32042556
http://dx.doi.org/10.1002/advs.201901840
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author Kim, Bohyung
Kim, Maengsuk
Lee, Jun Hee
Seok, Sang Il
author_facet Kim, Bohyung
Kim, Maengsuk
Lee, Jun Hee
Seok, Sang Il
author_sort Kim, Bohyung
collection PubMed
description Many organic cations in halide perovskites have been studied for their application in perovskite solar cells (PSCs). Most organic cations in PSCs are based on the protic nitrogen cores, which are susceptible to deprotonation. Here, a new candidate of fully alkylated sulfonium cation (butyldimethylsulfonium; BDMS) is designed and successfully assembled into PSCs with the aim of increasing humidity stability. The BDMS‐based perovskites retain the structural and optical features of pristine perovskite, which results in the comparable photovoltaic performance. However, the fully alkylated aprotic nature of BDMS shows a much more pronounced effect on the increase in humidity stability, which emphasizes a generic electronic difference between protic ammonium and aprotic sulfonium cation. The current results would pave a new way to explore cations for the development of promising PSCs.
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spelling pubmed-70016332020-02-10 Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells Kim, Bohyung Kim, Maengsuk Lee, Jun Hee Seok, Sang Il Adv Sci (Weinh) Communications Many organic cations in halide perovskites have been studied for their application in perovskite solar cells (PSCs). Most organic cations in PSCs are based on the protic nitrogen cores, which are susceptible to deprotonation. Here, a new candidate of fully alkylated sulfonium cation (butyldimethylsulfonium; BDMS) is designed and successfully assembled into PSCs with the aim of increasing humidity stability. The BDMS‐based perovskites retain the structural and optical features of pristine perovskite, which results in the comparable photovoltaic performance. However, the fully alkylated aprotic nature of BDMS shows a much more pronounced effect on the increase in humidity stability, which emphasizes a generic electronic difference between protic ammonium and aprotic sulfonium cation. The current results would pave a new way to explore cations for the development of promising PSCs. John Wiley and Sons Inc. 2019-12-13 /pmc/articles/PMC7001633/ /pubmed/32042556 http://dx.doi.org/10.1002/advs.201901840 Text en © 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Communications
Kim, Bohyung
Kim, Maengsuk
Lee, Jun Hee
Seok, Sang Il
Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells
title Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells
title_full Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells
title_fullStr Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells
title_full_unstemmed Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells
title_short Enhanced Moisture Stability by Butyldimethylsulfonium Cation in Perovskite Solar Cells
title_sort enhanced moisture stability by butyldimethylsulfonium cation in perovskite solar cells
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7001633/
https://www.ncbi.nlm.nih.gov/pubmed/32042556
http://dx.doi.org/10.1002/advs.201901840
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