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Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells

Organic cation and halide anion defects are omnipresent in the perovskite films, which will destroy perovskite electronic structure and downgrade the properties of devices. Defect passivation in halide perovskites is crucial to the application of solar cells. Herein, tiny amounts of trivalent rhodiu...

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Autores principales: Liu, Wei, Liu, Nanjing, Ji, Shilei, Hua, Hongfeng, Ma, Yuhui, Hu, Ruiyuan, Zhang, Jian, Chu, Liang, Li, Xing’ao, Huang, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770677/
https://www.ncbi.nlm.nih.gov/pubmed/34138140
http://dx.doi.org/10.1007/s40820-020-00457-7
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author Liu, Wei
Liu, Nanjing
Ji, Shilei
Hua, Hongfeng
Ma, Yuhui
Hu, Ruiyuan
Zhang, Jian
Chu, Liang
Li, Xing’ao
Huang, Wei
author_facet Liu, Wei
Liu, Nanjing
Ji, Shilei
Hua, Hongfeng
Ma, Yuhui
Hu, Ruiyuan
Zhang, Jian
Chu, Liang
Li, Xing’ao
Huang, Wei
author_sort Liu, Wei
collection PubMed
description Organic cation and halide anion defects are omnipresent in the perovskite films, which will destroy perovskite electronic structure and downgrade the properties of devices. Defect passivation in halide perovskites is crucial to the application of solar cells. Herein, tiny amounts of trivalent rhodium ion incorporation can help the nucleation of perovskite grain and passivate the defects in the grain boundaries, which can improve efficiency and stability of perovskite solar cells. Through first-principle calculations, rhodium ion incorporation into the perovskite structure can induce ordered arrangement and tune bandgap. In experiment, rhodium ion incorporation with perovskite can contribute to preparing larger crystalline and uniform film, reducing trap-state density and enlarging charge carrier lifetime. After optimizing the content of 1% rhodium, the devices achieved an efficiency up to 20.71% without obvious hysteresis, from 19.09% of that pristine perovskite. In addition, the unencapsulated solar cells maintain 92% of its initial efficiency after 500 h in dry air. This work highlights the advantages of trivalent rhodium ion incorporation in the characteristics of perovskite solar cells, which will promote the future industrial application. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00457-7) contains supplementary material, which is available to authorized users.
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spelling pubmed-77706772021-06-14 Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells Liu, Wei Liu, Nanjing Ji, Shilei Hua, Hongfeng Ma, Yuhui Hu, Ruiyuan Zhang, Jian Chu, Liang Li, Xing’ao Huang, Wei Nanomicro Lett Article Organic cation and halide anion defects are omnipresent in the perovskite films, which will destroy perovskite electronic structure and downgrade the properties of devices. Defect passivation in halide perovskites is crucial to the application of solar cells. Herein, tiny amounts of trivalent rhodium ion incorporation can help the nucleation of perovskite grain and passivate the defects in the grain boundaries, which can improve efficiency and stability of perovskite solar cells. Through first-principle calculations, rhodium ion incorporation into the perovskite structure can induce ordered arrangement and tune bandgap. In experiment, rhodium ion incorporation with perovskite can contribute to preparing larger crystalline and uniform film, reducing trap-state density and enlarging charge carrier lifetime. After optimizing the content of 1% rhodium, the devices achieved an efficiency up to 20.71% without obvious hysteresis, from 19.09% of that pristine perovskite. In addition, the unencapsulated solar cells maintain 92% of its initial efficiency after 500 h in dry air. This work highlights the advantages of trivalent rhodium ion incorporation in the characteristics of perovskite solar cells, which will promote the future industrial application. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00457-7) contains supplementary material, which is available to authorized users. Springer Singapore 2020-06-03 /pmc/articles/PMC7770677/ /pubmed/34138140 http://dx.doi.org/10.1007/s40820-020-00457-7 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Liu, Wei
Liu, Nanjing
Ji, Shilei
Hua, Hongfeng
Ma, Yuhui
Hu, Ruiyuan
Zhang, Jian
Chu, Liang
Li, Xing’ao
Huang, Wei
Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells
title Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells
title_full Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells
title_fullStr Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells
title_full_unstemmed Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells
title_short Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells
title_sort perfection of perovskite grain boundary passivation by rhodium incorporation for efficient and stable solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770677/
https://www.ncbi.nlm.nih.gov/pubmed/34138140
http://dx.doi.org/10.1007/s40820-020-00457-7
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