Small Molecule Modulator at the Interface for Efficient Perovskite Solar Cells with High Short-Circuit Current Density and Hysteresis Free
文献类型：期刊论文
| 作者 | Wang, Ming2; Li, Wei2; Wang, Huaxin2; Yang, Ke1,3; Hu, Xiaofei2; Sun, Kuan3; Lu, Shirong1 ; Zang, Zhigang2
|
| 刊名 | ADVANCED ELECTRONIC MATERIALS
 |
| 出版日期 | 2020-09-13 |
| 页码 | 9 |
| 关键词 | 2-Mercaptoimidazole interface passivation perovskite solar cells short-circuit current small molecules |
| ISSN号 | 2199-160X |
| DOI | 10.1002/aelm.202000604 |
| 通讯作者 | Zang, Zhigang(zangzg@cqu.edu.cn) |
| 英文摘要 | Interface engineering is widely applied in the one-step antisolvent deposition for elevating efficiency of the perovskite solar cells (PSCs). Herein, an alcohol-soluble small molecule, namely 2-mercaptoimidazole (MI), is inserted between the hole transport layer and perovskite layer to form a cross-linking bridge, which is built through: i) Coulomb interaction between the negatively charged MI and positively charged poly (3,4-ethylene dioxythiophene); ii) electrostatic interaction between imidazolium cation and iodide anion in perovskite. The cross-linking bridge can accelerate the hole transmission and inhibit interfacial recombination. Hence, by the optimum design of MI concentration, hysteresis-free devices with a high power conversion efficiency of 20.68% are obtained. The overall efficiency increase is due to significantly enhanced short-circuit current density from 21.28 to 23.45 mA cm(-2)and slightly raised open-circuit voltage from 1.06 to 1.08 V, suggesting that the MI modified layer can effectively improve the performance of the devices. Moreover, unencapsulated devices with MI interfacial modification show better environmental stability compared to the reference devices. This facile interfacial approach is promising for future commercialization of inverted PSCs. |
| 资助项目 | Defense Industrial Technology Development Program[JCKY2017110C0654] ; National Natural Science Foundation of China[11974063] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000568767300001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/11811]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Zang, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Organ Semicond Res Ctr, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China 3.Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ming,Li, Wei,Wang, Huaxin,et al. Small Molecule Modulator at the Interface for Efficient Perovskite Solar Cells with High Short-Circuit Current Density and Hysteresis Free[J]. ADVANCED ELECTRONIC MATERIALS,2020:9. |
| APA | Wang, Ming.,Li, Wei.,Wang, Huaxin.,Yang, Ke.,Hu, Xiaofei.,...&Zang, Zhigang.(2020).Small Molecule Modulator at the Interface for Efficient Perovskite Solar Cells with High Short-Circuit Current Density and Hysteresis Free.ADVANCED ELECTRONIC MATERIALS,9. |
| MLA | Wang, Ming,et al."Small Molecule Modulator at the Interface for Efficient Perovskite Solar Cells with High Short-Circuit Current Density and Hysteresis Free".ADVANCED ELECTRONIC MATERIALS (2020):9. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。