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Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents

The recent years have witnessed a fast-paced development of perovskite solar cells (PSCs). Unfortunately, the vast majority of PSCs relies on the use of highly polar aprotic solvents during the preparation process, such as dimethylformamide (DMF), which is toxic and detrimental to both humans and th...

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Autores principales: Du, Chen, Wang, Shuo, Miao, Xu, Sun, Wenhai, Zhu, Yu, Wang, Chengyan, Ma, Ruixin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6902891/
https://www.ncbi.nlm.nih.gov/pubmed/31886114
http://dx.doi.org/10.3762/bjnano.10.228
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author Du, Chen
Wang, Shuo
Miao, Xu
Sun, Wenhai
Zhu, Yu
Wang, Chengyan
Ma, Ruixin
author_facet Du, Chen
Wang, Shuo
Miao, Xu
Sun, Wenhai
Zhu, Yu
Wang, Chengyan
Ma, Ruixin
author_sort Du, Chen
collection PubMed
description The recent years have witnessed a fast-paced development of perovskite solar cells (PSCs). Unfortunately, the vast majority of PSCs relies on the use of highly polar aprotic solvents during the preparation process, such as dimethylformamide (DMF), which is toxic and detrimental to both humans and the environment. Here, we describe the preparation of PSCs under ambient conditions from an aqueous solution of lead nitrate, to which polyvinylpyrrolidone (PVP) was added in order to enhance the photoelectric performance of the PSCs. By a combination of SEM, EIS, PL and UV spectroscopy and other characterization approaches, we show that the PVP additive is effective in inhibiting carrier recombination, enhancing composite resistance and reducing film defects. Ultimately, we achieved an outstanding photoelectric performance of the PVP-doped PSCs shown by a power conversion efficiency (PCE) of 15.19% and an average steady-state PCE of 14.55% under AM 1.5G simulated solar irradiation with a shadow mask of 0.1 cm(2). The PCE continued to be over 80% of the initial PCE after 60 days of storage. FInally, the introduced PVP-doped PSCs present a low-cost and low-toxicity way to commercialize perovskite solar cells.
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spelling pubmed-69028912019-12-27 Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents Du, Chen Wang, Shuo Miao, Xu Sun, Wenhai Zhu, Yu Wang, Chengyan Ma, Ruixin Beilstein J Nanotechnol Full Research Paper The recent years have witnessed a fast-paced development of perovskite solar cells (PSCs). Unfortunately, the vast majority of PSCs relies on the use of highly polar aprotic solvents during the preparation process, such as dimethylformamide (DMF), which is toxic and detrimental to both humans and the environment. Here, we describe the preparation of PSCs under ambient conditions from an aqueous solution of lead nitrate, to which polyvinylpyrrolidone (PVP) was added in order to enhance the photoelectric performance of the PSCs. By a combination of SEM, EIS, PL and UV spectroscopy and other characterization approaches, we show that the PVP additive is effective in inhibiting carrier recombination, enhancing composite resistance and reducing film defects. Ultimately, we achieved an outstanding photoelectric performance of the PVP-doped PSCs shown by a power conversion efficiency (PCE) of 15.19% and an average steady-state PCE of 14.55% under AM 1.5G simulated solar irradiation with a shadow mask of 0.1 cm(2). The PCE continued to be over 80% of the initial PCE after 60 days of storage. FInally, the introduced PVP-doped PSCs present a low-cost and low-toxicity way to commercialize perovskite solar cells. Beilstein-Institut 2019-12-05 /pmc/articles/PMC6902891/ /pubmed/31886114 http://dx.doi.org/10.3762/bjnano.10.228 Text en Copyright © 2019, Du et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the authors and source are credited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms)
spellingShingle Full Research Paper
Du, Chen
Wang, Shuo
Miao, Xu
Sun, Wenhai
Zhu, Yu
Wang, Chengyan
Ma, Ruixin
Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
title Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
title_full Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
title_fullStr Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
title_full_unstemmed Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
title_short Polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
title_sort polyvinylpyrrolidone as additive for perovskite solar cells with water and isopropanol as solvents
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6902891/
https://www.ncbi.nlm.nih.gov/pubmed/31886114
http://dx.doi.org/10.3762/bjnano.10.228
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