KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Bottom-up holistic carrier management strategy induced synergistically by multiple chemical bonds to minimize energy losses for efficient and stable perovskite solar cells | |
Liu, Baibai1; Li, Ru1; Zhuang, Qixin1; Yu, Xuemeng2; Gong, Shaokuan2; He, Dongmei1; Zhou, Qian1; Yang, Hua3; Chen, Xihan2; Lu, Shirong4 ; Xu, Zong-Xiang5; Zang, Zhigang1; Chen, Jiangzhao1
| |
| 2023 | |
| Abstract | The defects from electron transport layer, perovskite layer and their interface would result in carrier nonradiative recombination losses. Poor buried interfacial contact is detrimental to charge extraction and device stability. Here, we report a bottom-up holistic carrier management strategy induced synergistically by multiple chemical bonds to minimize bulk and interfacial energy losses for high-performance perovskite photovoltaics. 4-trifluoromethyl-benzamidine hydrochloride (TBHCI) containing -CF3, amidine cation and Cl is in advance incorporated into SnO2 colloid solution to realize bottom-up modification. The synergistic effect of multiple functional groups and multiple-bond-induced chemical interaction are revealed theoretically and experimentally. F and Cl can passivate oxygen vacancy and/or undercoordinated Sn4+ defects by coordinating with Sn4+. The F can suppress cation migration and modulate crystallization via hydrogen bond with FA(+), and can passivate lead defects by coordinating with Pb2+. The - NH2-C=NH2+ and Cl can passivate cation and anion vacancy defects through ionic bonds with perovskites, respectively. Through TBHCI modification, the suppression of agglomeration of SnO2 nanopartides, bulk and interfacial defect passivation, and release of tensile strains of perovskite films are demonstrated, which resulted in a PCE enhancement from 21.28% to 23.40% and improved stability. With post-treatment, the efficiency is further improved to 23.63%. (C) 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved. |
| Keyword | Perovskite solar cells Bottom-up holistic carrier management strategy Functional group synergistic effect Defect passivation Stress release |
| DOI | 10.1016/j.jechem.2022.09.037 |
| Source Publication | JOURNAL OF ENERGY CHEMISTRY
 |
| ISSN | 2095-4956 |
| Volume | 76Pages:277-287 |
| Corresponding Author | Xu, Zong-Xiang(xu.zx@sustech.edu.cn) ; Zang, Zhigang(zangzg@cqu.edu.cn) ; Chen, Jiangzhao(jiangzhaochen@cqu.edu.cn) |
| Indexed By | SCI |
| WOS ID | WOS:000878690700006 |
| Language | 英语 |
| Funding Project | Support Plan for Overseas Students to Return to China for Entrepreneurship and Innovation[cx2020003] ; Fundamental Research Funds for the Central Universities[2020CDJ-LHZZ-074] ; Natural Science Foundation of Chongqing[cstc2020jcyj-msxmX0629] |
| WOS Research Area | Chemistry ; Energy & Fuels ; Engineering |
| WOS Subject | Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://124.16.212.251/handle/2HOD01W0/16793 |
| Collection | 中国科学院重庆绿色智能技术研究院 |
| Corresponding Author | Xu, Zong-Xiang; Zang, Zhigang; Chen, Jiangzhao |
| Affiliation | 1.Chongqing Univ, Coll Optoelect Engn, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China 2.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Dept Mech & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 4.Univ Chinese Acad Sci UCAS Chongqing, Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 5.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Baibai,Li, Ru,Zhuang, Qixin,et al. Bottom-up holistic carrier management strategy induced synergistically by multiple chemical bonds to minimize energy losses for efficient and stable perovskite solar cells[J]. JOURNAL OF ENERGY CHEMISTRY,2023,76:277-287. |
| APA | Liu, Baibai.,Li, Ru.,Zhuang, Qixin.,Yu, Xuemeng.,Gong, Shaokuan.,...&Chen, Jiangzhao.(2023).Bottom-up holistic carrier management strategy induced synergistically by multiple chemical bonds to minimize energy losses for efficient and stable perovskite solar cells.JOURNAL OF ENERGY CHEMISTRY,76,277-287. |
| MLA | Liu, Baibai,et al."Bottom-up holistic carrier management strategy induced synergistically by multiple chemical bonds to minimize energy losses for efficient and stable perovskite solar cells".JOURNAL OF ENERGY CHEMISTRY 76(2023):277-287. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment