Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells

Perovskite solar cells (PSCs) were fabricated using a two-step spin-coating method with MACl added to the inorganic layer. The properties of the perovskite films were characterized by SEM, XRD, PL, UV-vis spectra, etc. The morphology of the PbI2 film was significantly changed, and the formation of M...

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Main Authors: Hongqiao Wang, Jingquan Zhang
Format: Article
Language:English
Published: Hindawi Limited 2022-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2022/5288400
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author Hongqiao Wang
Jingquan Zhang
author_facet Hongqiao Wang
Jingquan Zhang
author_sort Hongqiao Wang
collection DOAJ
description Perovskite solar cells (PSCs) were fabricated using a two-step spin-coating method with MACl added to the inorganic layer. The properties of the perovskite films were characterized by SEM, XRD, PL, UV-vis spectra, etc. The morphology of the PbI2 film was significantly changed, and the formation of MACl-related intermediate phase was observed at the grain boundaries. The grain size and crystallinity of the perovskite film increased, and the morphology at grain boundaries was optimized, while the composition of perovskite remained unchanged. The introduction of MACl improved the open circuit voltage (VOC) and fill factor (FF) of PSCs, and the optimal device efficiency reached 21.59%. This paper presents a new approach using additives in inorganic layers to optimize the crystallization process for efficient PSCs.
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spelling doaj.art-36457987f54e436a8a3bcc06baf965772022-12-22T04:13:02ZengHindawi LimitedInternational Journal of Photoenergy1687-529X2022-01-01202210.1155/2022/5288400Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar CellsHongqiao Wang0Jingquan Zhang1College of Materials Science and Engineering & Institute of New Energy and Low-Carbon TechnologyCollege of Materials Science and Engineering & Institute of New Energy and Low-Carbon TechnologyPerovskite solar cells (PSCs) were fabricated using a two-step spin-coating method with MACl added to the inorganic layer. The properties of the perovskite films were characterized by SEM, XRD, PL, UV-vis spectra, etc. The morphology of the PbI2 film was significantly changed, and the formation of MACl-related intermediate phase was observed at the grain boundaries. The grain size and crystallinity of the perovskite film increased, and the morphology at grain boundaries was optimized, while the composition of perovskite remained unchanged. The introduction of MACl improved the open circuit voltage (VOC) and fill factor (FF) of PSCs, and the optimal device efficiency reached 21.59%. This paper presents a new approach using additives in inorganic layers to optimize the crystallization process for efficient PSCs.http://dx.doi.org/10.1155/2022/5288400
spellingShingle Hongqiao Wang
Jingquan Zhang
Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells
International Journal of Photoenergy
title Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells
title_full Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells
title_fullStr Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells
title_full_unstemmed Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells
title_short Methylammonium Chloride Additive in Lead Iodide Optimizing the Crystallization Process for Efficient Perovskite Solar Cells
title_sort methylammonium chloride additive in lead iodide optimizing the crystallization process for efficient perovskite solar cells
url http://dx.doi.org/10.1155/2022/5288400
work_keys_str_mv AT hongqiaowang methylammoniumchlorideadditiveinleadiodideoptimizingthecrystallizationprocessforefficientperovskitesolarcells
AT jingquanzhang methylammoniumchlorideadditiveinleadiodideoptimizingthecrystallizationprocessforefficientperovskitesolarcells