Regulating coordination by multi-configurational alkaloid-based passivation molecules for high-performance perovskite photovoltaics
文献类型：期刊论文
| 作者 | Wu, Weiwei1,2; Dong, Xinhe1,2; Liu, Guozhen3; Pan, Xu3 ; Zheng, Haiying1,2
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023-01-15 |
| 卷号 | 452 |
| 关键词 | Perovskite solar cells Alkaloid Electron cloud density Defect passivation Photovoltaic performance |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.139535 |
| 通讯作者 | Liu, Guozhen(gzliu@issp.ac.cn) ; Zheng, Haiying(hyzheng@ahu.edu.cn) |
| 英文摘要 | Abundant defects in polycrystalline perovskite will destroy the photovoltaic performance and accelerate the degradation of perovskite solar cells (PSCs). The development of effective management for multiple defects is obviously important to promote the practical application of perovskite photovoltaics. Herein, we firstly intro-duced the strategy of employing natural alkaloid passivation agents (adenine and cytosine) to achieve the directed management of lead-and iodide-based defects. Owing to the various configurations of alkaloid mole-cules, the electron cloud density distributions for different functional groups display adjustable characteristic, which closely related to the passivation effect. As a result, the C--O with high electron density can form stronger Pb-O coordination with uncoordinated Pb2+ rather than the Pb-N bond (imidazole ring with Pb2+), leading to fewer lead-based defects being generated. The stronger electron-withdrawing ability of the C--O further pro-motes the hydrogen bond of -NH2 and I -/Br- to reduce I -/Br- vacancies. Finally, the devices with cytosine perform the champion PCE of 22.07 % and dramatically enhance open-circuit voltage (Voc = 1.19 V), as well as much better environmental stability. This work provides a new insight on rationally design the non-toxic, cheap and accessible passivation molecules structure for achieving the efficient and stable PSCs. |
| WOS关键词 | STABLE SOLAR-CELLS ; EFFICIENT ; STABILITY |
| 资助项目 | National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; China Postdoctoral Science Foundation ; [52102196] ; [2008085QE208] ; [2108085QE190] ; [2021M693213] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000871061500001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129857]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Liu, Guozhen; Zheng, Haiying |
| 作者单位 | 1.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 2.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 3.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Weiwei,Dong, Xinhe,Liu, Guozhen,et al. Regulating coordination by multi-configurational alkaloid-based passivation molecules for high-performance perovskite photovoltaics[J]. CHEMICAL ENGINEERING JOURNAL,2023,452. |
| APA | Wu, Weiwei,Dong, Xinhe,Liu, Guozhen,Pan, Xu,&Zheng, Haiying.(2023).Regulating coordination by multi-configurational alkaloid-based passivation molecules for high-performance perovskite photovoltaics.CHEMICAL ENGINEERING JOURNAL,452. |
| MLA | Wu, Weiwei,et al."Regulating coordination by multi-configurational alkaloid-based passivation molecules for high-performance perovskite photovoltaics".CHEMICAL ENGINEERING JOURNAL 452(2023). |
入库方式： OAI收割
来源：合肥物质科学研究院
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