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Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer

In our study, by developing the diluted PEDOT:PSS (D-PEDOT:PSS) to replace PEDOT:PSS stock solution as hole transport layer (HTL) materials for fabricating the inverted perovskite solar cells (PSCs), the performance of developed device with ITO/D-PEDOT:PSS/MAPbI(3−x)Cl(x)/C(60)/BCP/Ag structure is e...

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Autores principales: Yang, Xiude, Lv, Feng, Yao, Yanqing, Li, Ping, Wu, Bo, Xu, Cunyun, Zhou, Guangdong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9699375/
https://www.ncbi.nlm.nih.gov/pubmed/36432227
http://dx.doi.org/10.3390/nano12223941
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author Yang, Xiude
Lv, Feng
Yao, Yanqing
Li, Ping
Wu, Bo
Xu, Cunyun
Zhou, Guangdong
author_facet Yang, Xiude
Lv, Feng
Yao, Yanqing
Li, Ping
Wu, Bo
Xu, Cunyun
Zhou, Guangdong
author_sort Yang, Xiude
collection PubMed
description In our study, by developing the diluted PEDOT:PSS (D-PEDOT:PSS) to replace PEDOT:PSS stock solution as hole transport layer (HTL) materials for fabricating the inverted perovskite solar cells (PSCs), the performance of developed device with ITO/D-PEDOT:PSS/MAPbI(3−x)Cl(x)/C(60)/BCP/Ag structure is enhanced distinctly. Experimental results reveal that when the dilution ratio is 10:1, the optimal power conversion efficiency (PCE) of the D-PEDOT:PSS device can reach up to 17.85% with an increase of 11.28% compared to the undiluted PEDOT:PSS device. A series of investigations have confirmed that the efficiency improvement is mainly attributed to the two aspects: on one hand, the transmittance and conductivity of D-PEDOT:PSS HTL are improved, and the density of defect states at the interface is reduced after dilution, promoting the separation and transmission of charges, thus the short-circuit current (J(SC)) is significantly increased; on the other hand, the work function of D-PEDOT:PSS becomes more consistent with perovskite layer, and the voltage loss is reduced, so that the higher open circuit voltage (V(OC)) is obtained. Our research has indicated that diluting HTL develops a simpler, more efficient and cost-effective method to further improve performance for inverted PSCs.
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spelling pubmed-96993752022-11-26 Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer Yang, Xiude Lv, Feng Yao, Yanqing Li, Ping Wu, Bo Xu, Cunyun Zhou, Guangdong Nanomaterials (Basel) Article In our study, by developing the diluted PEDOT:PSS (D-PEDOT:PSS) to replace PEDOT:PSS stock solution as hole transport layer (HTL) materials for fabricating the inverted perovskite solar cells (PSCs), the performance of developed device with ITO/D-PEDOT:PSS/MAPbI(3−x)Cl(x)/C(60)/BCP/Ag structure is enhanced distinctly. Experimental results reveal that when the dilution ratio is 10:1, the optimal power conversion efficiency (PCE) of the D-PEDOT:PSS device can reach up to 17.85% with an increase of 11.28% compared to the undiluted PEDOT:PSS device. A series of investigations have confirmed that the efficiency improvement is mainly attributed to the two aspects: on one hand, the transmittance and conductivity of D-PEDOT:PSS HTL are improved, and the density of defect states at the interface is reduced after dilution, promoting the separation and transmission of charges, thus the short-circuit current (J(SC)) is significantly increased; on the other hand, the work function of D-PEDOT:PSS becomes more consistent with perovskite layer, and the voltage loss is reduced, so that the higher open circuit voltage (V(OC)) is obtained. Our research has indicated that diluting HTL develops a simpler, more efficient and cost-effective method to further improve performance for inverted PSCs. MDPI 2022-11-09 /pmc/articles/PMC9699375/ /pubmed/36432227 http://dx.doi.org/10.3390/nano12223941 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Xiude
Lv, Feng
Yao, Yanqing
Li, Ping
Wu, Bo
Xu, Cunyun
Zhou, Guangdong
Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer
title Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer
title_full Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer
title_fullStr Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer
title_full_unstemmed Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer
title_short Boosting Performance of Inverted Perovskite Solar Cells by Diluting Hole Transport Layer
title_sort boosting performance of inverted perovskite solar cells by diluting hole transport layer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9699375/
https://www.ncbi.nlm.nih.gov/pubmed/36432227
http://dx.doi.org/10.3390/nano12223941
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