Cargando…

Surface modulation for highly efficient and stable perovskite solar cells

Defects formed by halide ion escape and wettability of the perovskite absorber are essential limiting factors in achieving high performance of perovskite solar cells (PSCs). Herein, a series of ionic organic modulators are designed to contain halide anions to prevent defect formation and improve the...

Descripción completa

Detalles Bibliográficos
Autores principales: Bai, Dongliang, Zheng, Dexu, Yang, Shaoan, Yu, Fengyang, Zhu, Xuejie, Peng, Lei, Wang, Likun, Liu, Jishuang, Yang, Dong, Liu, Shengzhong (Frank)
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10517147/
https://www.ncbi.nlm.nih.gov/pubmed/37746342
http://dx.doi.org/10.1039/d3ra00809f
_version_ 1785109265859477504
author Bai, Dongliang
Zheng, Dexu
Yang, Shaoan
Yu, Fengyang
Zhu, Xuejie
Peng, Lei
Wang, Likun
Liu, Jishuang
Yang, Dong
Liu, Shengzhong (Frank)
author_facet Bai, Dongliang
Zheng, Dexu
Yang, Shaoan
Yu, Fengyang
Zhu, Xuejie
Peng, Lei
Wang, Likun
Liu, Jishuang
Yang, Dong
Liu, Shengzhong (Frank)
author_sort Bai, Dongliang
collection PubMed
description Defects formed by halide ion escape and wettability of the perovskite absorber are essential limiting factors in achieving high performance of perovskite solar cells (PSCs). Herein, a series of ionic organic modulators are designed to contain halide anions to prevent defect formation and improve the surface tension of the perovskite absorber. It was found that the surface modulator containing Br anions is the most effective one due to its capability in bonding with the undercoordinated Pb(2+) ions to reduce charge recombination. Moreover, this surface modulator effectively creates a suitable energy level between the perovskite and hole transport layer to promote carrier transfer. In addition, the surface modulator forms a chemisorbed capping layer on the perovskite surface to improve its hydrophobicity. As a result, the efficiency of PSCs based on surface modulators containing Br anion enhances to 23.32% from 21.08% of the control device. The efficiency of unencapsulated PSCs with a surface modulator retains 75.42% of its initial value under about 35% humidity stored in the air for 28 days, while the control device only maintained 44.49% of its initial efficiency. The excellent stability originates from the hydrophobic perovskite surface after capping the surface modulator.
format Online
Article
Text
id pubmed-10517147
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-105171472023-09-24 Surface modulation for highly efficient and stable perovskite solar cells Bai, Dongliang Zheng, Dexu Yang, Shaoan Yu, Fengyang Zhu, Xuejie Peng, Lei Wang, Likun Liu, Jishuang Yang, Dong Liu, Shengzhong (Frank) RSC Adv Chemistry Defects formed by halide ion escape and wettability of the perovskite absorber are essential limiting factors in achieving high performance of perovskite solar cells (PSCs). Herein, a series of ionic organic modulators are designed to contain halide anions to prevent defect formation and improve the surface tension of the perovskite absorber. It was found that the surface modulator containing Br anions is the most effective one due to its capability in bonding with the undercoordinated Pb(2+) ions to reduce charge recombination. Moreover, this surface modulator effectively creates a suitable energy level between the perovskite and hole transport layer to promote carrier transfer. In addition, the surface modulator forms a chemisorbed capping layer on the perovskite surface to improve its hydrophobicity. As a result, the efficiency of PSCs based on surface modulators containing Br anion enhances to 23.32% from 21.08% of the control device. The efficiency of unencapsulated PSCs with a surface modulator retains 75.42% of its initial value under about 35% humidity stored in the air for 28 days, while the control device only maintained 44.49% of its initial efficiency. The excellent stability originates from the hydrophobic perovskite surface after capping the surface modulator. The Royal Society of Chemistry 2023-09-22 /pmc/articles/PMC10517147/ /pubmed/37746342 http://dx.doi.org/10.1039/d3ra00809f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Bai, Dongliang
Zheng, Dexu
Yang, Shaoan
Yu, Fengyang
Zhu, Xuejie
Peng, Lei
Wang, Likun
Liu, Jishuang
Yang, Dong
Liu, Shengzhong (Frank)
Surface modulation for highly efficient and stable perovskite solar cells
title Surface modulation for highly efficient and stable perovskite solar cells
title_full Surface modulation for highly efficient and stable perovskite solar cells
title_fullStr Surface modulation for highly efficient and stable perovskite solar cells
title_full_unstemmed Surface modulation for highly efficient and stable perovskite solar cells
title_short Surface modulation for highly efficient and stable perovskite solar cells
title_sort surface modulation for highly efficient and stable perovskite solar cells
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10517147/
https://www.ncbi.nlm.nih.gov/pubmed/37746342
http://dx.doi.org/10.1039/d3ra00809f
work_keys_str_mv AT baidongliang surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT zhengdexu surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT yangshaoan surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT yufengyang surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT zhuxuejie surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT penglei surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT wanglikun surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT liujishuang surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT yangdong surfacemodulationforhighlyefficientandstableperovskitesolarcells
AT liushengzhongfrank surfacemodulationforhighlyefficientandstableperovskitesolarcells