Cargando…
Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive
Flexible perovskite solar cells (PSCs) have attracted tremendous attention due to their potential application in portable and wearable electronics. However, the photoelectric conversion efficiency (PCE) of flexible PSCs is still far lower than that of usual rigid PSCs. Moreover, the mechanical stabi...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9042258/ https://www.ncbi.nlm.nih.gov/pubmed/35497527 http://dx.doi.org/10.1039/d1ra05399j |
_version_ | 1784694624272515072 |
---|---|
author | Zhang, Xiaobo Ma, Yang Chen, Xiaoqing Li, Xuhong Zhou, Wencai Ouedraogo, Nabonswende Aida Nadege Shirai, Yasuhiro Zhang, Yongzhe Yan, Hui |
author_facet | Zhang, Xiaobo Ma, Yang Chen, Xiaoqing Li, Xuhong Zhou, Wencai Ouedraogo, Nabonswende Aida Nadege Shirai, Yasuhiro Zhang, Yongzhe Yan, Hui |
author_sort | Zhang, Xiaobo |
collection | PubMed |
description | Flexible perovskite solar cells (PSCs) have attracted tremendous attention due to their potential application in portable and wearable electronics. However, the photoelectric conversion efficiency (PCE) of flexible PSCs is still far lower than that of usual rigid PSCs. Moreover, the mechanical stability of flexible PSCs cannot meet the needs of commercial applications because of the cracking of perovskite grains caused by bending stress. Here, we introduced a spacer cation additive (2-(chloromethyl) pyridine hydrochloride, CPHC) within the perovskite organic precursor to improve the device PCE and its mechanical stability. We observed that the CPHC spacer cation additive could simultaneously facilitate the crystallization of perovskite and stitch the grain boundaries to improve the flexibility. Compared to the 17.64% PCE of the control devices, the target flexible PSCs achieved a more highly efficiency over 19% with an improved mechanical stability (87.2% of the initial PCE after the 1000 cycles with the bending radius R = 6 mm). In addition, compared to methylammonium or formamidinium cation, due to the stronger hydrophobic and larger activation energy barrier for the ion migration of the CPHC spacer cation, the device retained over 80% of the initial PCE after 30 days storage in an ambient environment. |
format | Online Article Text |
id | pubmed-9042258 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90422582022-04-28 Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive Zhang, Xiaobo Ma, Yang Chen, Xiaoqing Li, Xuhong Zhou, Wencai Ouedraogo, Nabonswende Aida Nadege Shirai, Yasuhiro Zhang, Yongzhe Yan, Hui RSC Adv Chemistry Flexible perovskite solar cells (PSCs) have attracted tremendous attention due to their potential application in portable and wearable electronics. However, the photoelectric conversion efficiency (PCE) of flexible PSCs is still far lower than that of usual rigid PSCs. Moreover, the mechanical stability of flexible PSCs cannot meet the needs of commercial applications because of the cracking of perovskite grains caused by bending stress. Here, we introduced a spacer cation additive (2-(chloromethyl) pyridine hydrochloride, CPHC) within the perovskite organic precursor to improve the device PCE and its mechanical stability. We observed that the CPHC spacer cation additive could simultaneously facilitate the crystallization of perovskite and stitch the grain boundaries to improve the flexibility. Compared to the 17.64% PCE of the control devices, the target flexible PSCs achieved a more highly efficiency over 19% with an improved mechanical stability (87.2% of the initial PCE after the 1000 cycles with the bending radius R = 6 mm). In addition, compared to methylammonium or formamidinium cation, due to the stronger hydrophobic and larger activation energy barrier for the ion migration of the CPHC spacer cation, the device retained over 80% of the initial PCE after 30 days storage in an ambient environment. The Royal Society of Chemistry 2021-10-14 /pmc/articles/PMC9042258/ /pubmed/35497527 http://dx.doi.org/10.1039/d1ra05399j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Zhang, Xiaobo Ma, Yang Chen, Xiaoqing Li, Xuhong Zhou, Wencai Ouedraogo, Nabonswende Aida Nadege Shirai, Yasuhiro Zhang, Yongzhe Yan, Hui Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
title | Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
title_full | Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
title_fullStr | Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
title_full_unstemmed | Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
title_short | Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
title_sort | improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9042258/ https://www.ncbi.nlm.nih.gov/pubmed/35497527 http://dx.doi.org/10.1039/d1ra05399j |
work_keys_str_mv | AT zhangxiaobo improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT mayang improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT chenxiaoqing improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT lixuhong improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT zhouwencai improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT ouedraogonabonswendeaidanadege improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT shiraiyasuhiro improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT zhangyongzhe improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive AT yanhui improvedefficiencyandstabilityofflexibleperovskitesolarcellsbyanewspacercationadditive |