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Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation

Two-dimensional (2D) organic-inorganic perovskites as one of the most important photovoltaic material used in solar cells have attracted remarkable attention. These 2D perovskites exhibit superior environmental stability and wide tunability of their optoelectronic properties. However, their photovol...

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Detalles Bibliográficos
Autores principales: Han, Feng, Yang, Wenyao, Li, Hao, Zhu, Lei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7530156/
https://www.ncbi.nlm.nih.gov/pubmed/33001319
http://dx.doi.org/10.1186/s11671-020-03406-w
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author Han, Feng
Yang, Wenyao
Li, Hao
Zhu, Lei
author_facet Han, Feng
Yang, Wenyao
Li, Hao
Zhu, Lei
author_sort Han, Feng
collection PubMed
description Two-dimensional (2D) organic-inorganic perovskites as one of the most important photovoltaic material used in solar cells have attracted remarkable attention. These 2D perovskites exhibit superior environmental stability and wide tunability of their optoelectronic properties. However, their photovoltaic performance is far behind those of traditional three-dimensional (3D) perovskites. In this work, we demonstrate the power conversion efficiency (PCE) of 2D perovskite solar cells (PVSCs) is greatly improved from 3.01% for initial to 12.19% by the incorporation of PbBr(2). The enhanced efficiency is attributed to superior surface quality, enhanced crystallinity, and the resulting reduced trap-state density. Furthermore, PbBr(2) incorporated devices without encapsulation show excellent humidity stability, illumination stability, and thermal stability. This work provides a universal and viable avenue toward efficient and stable 2D PVSCs.
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spelling pubmed-75301562020-10-19 Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation Han, Feng Yang, Wenyao Li, Hao Zhu, Lei Nanoscale Res Lett Nano Express Two-dimensional (2D) organic-inorganic perovskites as one of the most important photovoltaic material used in solar cells have attracted remarkable attention. These 2D perovskites exhibit superior environmental stability and wide tunability of their optoelectronic properties. However, their photovoltaic performance is far behind those of traditional three-dimensional (3D) perovskites. In this work, we demonstrate the power conversion efficiency (PCE) of 2D perovskite solar cells (PVSCs) is greatly improved from 3.01% for initial to 12.19% by the incorporation of PbBr(2). The enhanced efficiency is attributed to superior surface quality, enhanced crystallinity, and the resulting reduced trap-state density. Furthermore, PbBr(2) incorporated devices without encapsulation show excellent humidity stability, illumination stability, and thermal stability. This work provides a universal and viable avenue toward efficient and stable 2D PVSCs. Springer US 2020-10-01 /pmc/articles/PMC7530156/ /pubmed/33001319 http://dx.doi.org/10.1186/s11671-020-03406-w Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Nano Express
Han, Feng
Yang, Wenyao
Li, Hao
Zhu, Lei
Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
title Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
title_full Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
title_fullStr Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
title_full_unstemmed Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
title_short Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
title_sort stable high-efficiency two-dimensional perovskite solar cells via bromine incorporation
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7530156/
https://www.ncbi.nlm.nih.gov/pubmed/33001319
http://dx.doi.org/10.1186/s11671-020-03406-w
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