Interface-Modification-Induced Gradient Energy Band for Highly Efficient CsPbIBr2 Perovskite Solar Cells
文献类型：期刊论文
| 作者 | Subhani, Waqas Siddique1,2; Wang, Kai1; Du, Minyong1; Wang, Xiuli1; Liu, Shengzhong (Frank)1,3 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2019-06-05 |
| 卷号 | 9期号:21页码:9 |
| 关键词 | charge recombination CsPbIBr2 high efficiency inorganic perovskite solar cells interface modification |
| ISSN号 | 1614-6832 |
| DOI | 10.1002/aenm.201803785 |
| 通讯作者 | Wang, Kai(wangkai@dicp.ac.cn) ; Liu, Shengzhong (Frank)(szliu@dicp.ac.cn) |
| 英文摘要 | Inorganic cesium lead halide perovskite solar cells (PSCs) have received enormous attention due to their excellent stability compared with that of their organic-inorganic counterparts. However, the lack of optimization strategies leads the inorganic PSCs to suffer from low efficiency arising from significant recombination. To overcome this dilemma, a surface modification of the electron transport layer (ETL)/perovskite interface is undertaken by using SmBr3 to improve the crystallization and morphology of the perovskite layer for enhanced ETL/perovskite interface interaction. Encouragingly, a gradient energy band is created at the interface with an outstanding hole blocking effect. As a result, both the charge recombination occurring at the interface and the nonradiative recombination inside the perovskite are suppressed, and, simultaneously, the charge extraction is improved successfully. Therefore, the power conversion efficiency of the CsPbIBr2 PSCs is increased to as high as 10.88% under one sun illumination, which is 30% higher than its counterparts without the modification. It is logically inferred that this valuable optimization strategy can be extended to other analogous structures and materials. |
| WOS关键词 | ENHANCED PERFORMANCE ; OZONE TREATMENT ; PHASE ; ALPHA-CSPBI3 ; HYSTERESIS ; STABILITY ; CSPBI2BR ; LIMITS |
| 资助项目 | National Natural Science Foundation of China[21805274] ; National Natural Science Foundation of China[61674098] ; Doctor Startup Foundation of Liaoning Province[20180540099] ; 111 Project[B1404] ; National Key Research Program of China[2016YFA0202403] ; Chinese National 1000-Talent-Plan program[111001034] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000470925900001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctor Startup Foundation of Liaoning Province ; Doctor Startup Foundation of Liaoning Province ; 111 Project ; 111 Project ; National Key Research Program of China ; National Key Research Program of China ; Chinese National 1000-Talent-Plan program ; Chinese National 1000-Talent-Plan program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctor Startup Foundation of Liaoning Province ; Doctor Startup Foundation of Liaoning Province ; 111 Project ; 111 Project ; National Key Research Program of China ; National Key Research Program of China ; Chinese National 1000-Talent-Plan program ; Chinese National 1000-Talent-Plan program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctor Startup Foundation of Liaoning Province ; Doctor Startup Foundation of Liaoning Province ; 111 Project ; 111 Project ; National Key Research Program of China ; National Key Research Program of China ; Chinese National 1000-Talent-Plan program ; Chinese National 1000-Talent-Plan program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctor Startup Foundation of Liaoning Province ; Doctor Startup Foundation of Liaoning Province ; 111 Project ; 111 Project ; National Key Research Program of China ; National Key Research Program of China ; Chinese National 1000-Talent-Plan program ; Chinese National 1000-Talent-Plan program |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/171989]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Wang, Kai; Liu, Shengzhong (Frank) |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, IChEM, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem,Sch Mat Sci &, Shaanxi Engn Lab Adv Energy Technol,Inst Adv Ener, Shaanxi Key Lab Adv Energy Devices,Minist Educ, Xian 710119, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Subhani, Waqas Siddique,Wang, Kai,Du, Minyong,et al. Interface-Modification-Induced Gradient Energy Band for Highly Efficient CsPbIBr2 Perovskite Solar Cells[J]. ADVANCED ENERGY MATERIALS,2019,9(21):9. |
| APA | Subhani, Waqas Siddique,Wang, Kai,Du, Minyong,Wang, Xiuli,&Liu, Shengzhong .(2019).Interface-Modification-Induced Gradient Energy Band for Highly Efficient CsPbIBr2 Perovskite Solar Cells.ADVANCED ENERGY MATERIALS,9(21),9. |
| MLA | Subhani, Waqas Siddique,et al."Interface-Modification-Induced Gradient Energy Band for Highly Efficient CsPbIBr2 Perovskite Solar Cells".ADVANCED ENERGY MATERIALS 9.21(2019):9. |
入库方式： OAI收割
来源：大连化学物理研究所
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