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Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air

Although many groups have been trying to prepare perovskite solar cells (PSCs) in ambient air, the power conversion efficiency (PCE) is still low. Besides, the effect of moisture on the formation of perovskite films is still controversial. In this paper, we studied the effect of moisture on the form...

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Autores principales: Wu, Jian, Dong, Jing-Jing, Chen, Si-Xuan, Hao, Hui-Ying, Xing, Jie, Liu, Hao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6150869/
https://www.ncbi.nlm.nih.gov/pubmed/30242520
http://dx.doi.org/10.1186/s11671-018-2714-z
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author Wu, Jian
Dong, Jing-Jing
Chen, Si-Xuan
Hao, Hui-Ying
Xing, Jie
Liu, Hao
author_facet Wu, Jian
Dong, Jing-Jing
Chen, Si-Xuan
Hao, Hui-Ying
Xing, Jie
Liu, Hao
author_sort Wu, Jian
collection PubMed
description Although many groups have been trying to prepare perovskite solar cells (PSCs) in ambient air, the power conversion efficiency (PCE) is still low. Besides, the effect of moisture on the formation of perovskite films is still controversial. In this paper, we studied the effect of moisture on the formation of perovskite films in detail, and found that moisture can speed up the crystallizing process of PbI(2) films to form poor-quality films with large grain size and surface roughness, while, for the conversion of PbI(2) to perovskite films, a small amount of moisture is not adverse, and even beneficial. On this basis, we report the successful fabrication of efficient mesoporous PSCs with PCE of 16.00% under ambient air conditions at 25% relative humidity by adding a small amount of n-butyl amine into the solution of PbI(2) to enhance the quality of PbI(2) films and thus to achieve high-quality perovskite films with smooth surface, large crystal grains, and high crystal quality.
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spelling pubmed-61508692018-10-09 Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air Wu, Jian Dong, Jing-Jing Chen, Si-Xuan Hao, Hui-Ying Xing, Jie Liu, Hao Nanoscale Res Lett Nano Express Although many groups have been trying to prepare perovskite solar cells (PSCs) in ambient air, the power conversion efficiency (PCE) is still low. Besides, the effect of moisture on the formation of perovskite films is still controversial. In this paper, we studied the effect of moisture on the formation of perovskite films in detail, and found that moisture can speed up the crystallizing process of PbI(2) films to form poor-quality films with large grain size and surface roughness, while, for the conversion of PbI(2) to perovskite films, a small amount of moisture is not adverse, and even beneficial. On this basis, we report the successful fabrication of efficient mesoporous PSCs with PCE of 16.00% under ambient air conditions at 25% relative humidity by adding a small amount of n-butyl amine into the solution of PbI(2) to enhance the quality of PbI(2) films and thus to achieve high-quality perovskite films with smooth surface, large crystal grains, and high crystal quality. Springer US 2018-09-21 /pmc/articles/PMC6150869/ /pubmed/30242520 http://dx.doi.org/10.1186/s11671-018-2714-z Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Wu, Jian
Dong, Jing-Jing
Chen, Si-Xuan
Hao, Hui-Ying
Xing, Jie
Liu, Hao
Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air
title Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air
title_full Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air
title_fullStr Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air
title_full_unstemmed Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air
title_short Fabrication of Efficient Organic-Inorganic Perovskite Solar Cells in Ambient Air
title_sort fabrication of efficient organic-inorganic perovskite solar cells in ambient air
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6150869/
https://www.ncbi.nlm.nih.gov/pubmed/30242520
http://dx.doi.org/10.1186/s11671-018-2714-z
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