CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Hierarchically Manipulated Charge Recombination for Mitigating Energy Loss in CsPbI2Br Solar Cells
Luo, YX; Chen, JD; Hou, HY; Ye, YC; Shen, KC; Lu, LY; Li, YQ; Song, F; Gao, XY; Tang, JX
2020
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume12Issue:37Pages:41596-41604
Subtype期刊论文
AbstractAll-inorganic perovskite cesium lead iodide/bromide (CsPbI2Br) is considered as a robust absorber for perovskite solar cells (PSCs) because of its excellent thermal stability that guarantees its long-term operation stability. Efficient CsPbI2Br PSCs are available when obtaining low energy loss, which needs efficient charge generation, less charge recombination, and balanced charge extraction. However, numerous traps in perovskites hinder the photon-electron conversion process. Herein, hierarchical manipulation of charge recombination is proposed for CsPbI2Br PSCs featuring low energy loss. Nonselective trap reduction and selective halogen vacancy passivation are performed using 2,2'-(ethylenedioxy)diethylamine and phenylbutylammonium iodide for the bottom and top contacts, respectively. Because of all-around suppressed charge recombination, balanced charge extraction and suppressed hysteresis are realized. The champion PSC achieves an open-circuit voltage of 1.30 eV, a fill factor of 80.2%, and a power conversion efficiency of 16.6% that is 28.6% higher than that of the reference device. Moreover, the thermostability of PSCs is simultaneously enhanced because of the limited defect-assisted degradation.
KeywordHIGHLY EFFICIENT PERFORMANCE STABILITY PASSIVATION POLYMER
DOI10.1021/acsami.0c13116
Indexed BySCI
Language英语
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Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32903
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai Synchrotron Radiat Facil,Zhangjiang Lab, Shanghai 201204, Peoples R China
3.East China Normal Univ, Nanophoton & Adv Instrument Engn Res Ctr, Sch Phys & Elect Sci, Minist Educ, Shanghai 200062, Peoples R China
Recommended Citation
GB/T 7714
Luo, YX,Chen, JD,Hou, HY,et al. Hierarchically Manipulated Charge Recombination for Mitigating Energy Loss in CsPbI2Br Solar Cells[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(37):41596-41604.
APA Luo, YX.,Chen, JD.,Hou, HY.,Ye, YC.,Shen, KC.,...&Tang, JX.(2020).Hierarchically Manipulated Charge Recombination for Mitigating Energy Loss in CsPbI2Br Solar Cells.ACS APPLIED MATERIALS & INTERFACES,12(37),41596-41604.
MLA Luo, YX,et al."Hierarchically Manipulated Charge Recombination for Mitigating Energy Loss in CsPbI2Br Solar Cells".ACS APPLIED MATERIALS & INTERFACES 12.37(2020):41596-41604.
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