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Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells
Constructing two-dimensional (2D) perovskite atop of 3D with energy landscape management is still a challenge in perovskite photovoltaics. Here, we report a strategy through designing a series of π-conjugated organic cations to construct stable 2D perovskites and to realize delicate energy level tun...
Autores principales: | , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10246895/ https://www.ncbi.nlm.nih.gov/pubmed/37285424 http://dx.doi.org/10.1126/sciadv.adg0032 |
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author | Ma, Ke Sun, Jiaonan Atapattu, Harindi R. Larson, Bryon W. Yang, Hanjun Sun, Dewei Chen, Ke Wang, Kang Lee, Yoonho Tang, Yuanhao Bhoopalam, Anika Huang, Libai Graham, Kenneth R. Mei, Jianguo Dou, Letian |
author_facet | Ma, Ke Sun, Jiaonan Atapattu, Harindi R. Larson, Bryon W. Yang, Hanjun Sun, Dewei Chen, Ke Wang, Kang Lee, Yoonho Tang, Yuanhao Bhoopalam, Anika Huang, Libai Graham, Kenneth R. Mei, Jianguo Dou, Letian |
author_sort | Ma, Ke |
collection | PubMed |
description | Constructing two-dimensional (2D) perovskite atop of 3D with energy landscape management is still a challenge in perovskite photovoltaics. Here, we report a strategy through designing a series of π-conjugated organic cations to construct stable 2D perovskites and to realize delicate energy level tunability at 2D/3D heterojunctions. As a result, the hole transfer energy barriers can be reduced both at heterojunctions and within 2D structures, and the preferable work function shift reduces charge accumulation at interface. Leveraging these insights and also benefitted from the superior interface contact between conjugated cations and poly(triarylamine) (PTAA) hole transporting layer, a solar cell with power conversion efficiency of 24.6% has been achieved, which is the highest among PTAA-based n-i-p devices to the best of our knowledge. The devices exhibit greatly enhanced stability and reproducibility. This approach is generic to several hole transporting materials, offering opportunities to realize high efficiency without using the unstable Spiro-OMeTAD. |
format | Online Article Text |
id | pubmed-10246895 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-102468952023-06-08 Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells Ma, Ke Sun, Jiaonan Atapattu, Harindi R. Larson, Bryon W. Yang, Hanjun Sun, Dewei Chen, Ke Wang, Kang Lee, Yoonho Tang, Yuanhao Bhoopalam, Anika Huang, Libai Graham, Kenneth R. Mei, Jianguo Dou, Letian Sci Adv Physical and Materials Sciences Constructing two-dimensional (2D) perovskite atop of 3D with energy landscape management is still a challenge in perovskite photovoltaics. Here, we report a strategy through designing a series of π-conjugated organic cations to construct stable 2D perovskites and to realize delicate energy level tunability at 2D/3D heterojunctions. As a result, the hole transfer energy barriers can be reduced both at heterojunctions and within 2D structures, and the preferable work function shift reduces charge accumulation at interface. Leveraging these insights and also benefitted from the superior interface contact between conjugated cations and poly(triarylamine) (PTAA) hole transporting layer, a solar cell with power conversion efficiency of 24.6% has been achieved, which is the highest among PTAA-based n-i-p devices to the best of our knowledge. The devices exhibit greatly enhanced stability and reproducibility. This approach is generic to several hole transporting materials, offering opportunities to realize high efficiency without using the unstable Spiro-OMeTAD. American Association for the Advancement of Science 2023-06-07 /pmc/articles/PMC10246895/ /pubmed/37285424 http://dx.doi.org/10.1126/sciadv.adg0032 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Physical and Materials Sciences Ma, Ke Sun, Jiaonan Atapattu, Harindi R. Larson, Bryon W. Yang, Hanjun Sun, Dewei Chen, Ke Wang, Kang Lee, Yoonho Tang, Yuanhao Bhoopalam, Anika Huang, Libai Graham, Kenneth R. Mei, Jianguo Dou, Letian Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells |
title | Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells |
title_full | Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells |
title_fullStr | Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells |
title_full_unstemmed | Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells |
title_short | Holistic energy landscape management in 2D/3D heterojunction via molecular engineering for efficient perovskite solar cells |
title_sort | holistic energy landscape management in 2d/3d heterojunction via molecular engineering for efficient perovskite solar cells |
topic | Physical and Materials Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10246895/ https://www.ncbi.nlm.nih.gov/pubmed/37285424 http://dx.doi.org/10.1126/sciadv.adg0032 |
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