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Energy-Down-Shift CsPbCl3:Mn Quantum Dots for Boosting the Efficiency and Stability of Perovskite Solar Cells
Wang, Qian1,2,3; Zhang, Xisheng1,2,3,6; Jin, Zhiwen1,2,3; Zhang, Jingru1,2,3; Gao, Zhenfei1,2,3; Li, Yongfang5; Liu, Shengzhong Frank1,2,3,4
刊名ACS ENERGY LETTERS
2017-07-01
DOI10.1021/acsenergylett.7b00375
2期:7页:1479-1486
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]HIGHLY EFFICIENT ; ANION-EXCHANGE ; NANOCRYSTALS ; LIGHT ; OXIDE ; MN2+ ; PERFORMANCE ; CSPBX3 ; LAYERS ; ELECTRODES
英文摘要Parasitic absorption by window layer, electrode layer, and interface layer in the near ultraviolet (UV) region is no longer negligible for high-efficiency perovskite solar cells. On the other hand, UV-induced degradation is also a big component of cell instability. Herein, CsPbCl3:Mn-based quantum dots (QDs) are synthesized and applied onto the front side of the perovskite solar cells as the energy-down-shift (EDS) layer. It is found that with very high quantum yield (similar to 60%) and larger Stokes shift (>200 nm), the CsPbCl3:Mn QDs effectively convert the normally wasted energy in the UV region (300-400 nm) into usable visible light at 590 nm for enhanced power conversion efficiency (PCE). Meanwhile, conversion of the UV rays eliminated a significant loss mechanism that deteriorates perovskite stability. As a result, external quantum efficiency in the UV region is significantly increased, leading to an increased short-circuit current (3.77%) and PCE (3.34%). Furthermore, the stability of perovskite solar cells has also been improved from 85% to 97% of their initial efficiency after exposure in the UV region with 5 mW/cm(2) intensity by 100 h. In parallel, the organic and silicon solar cells coated by EDS QDs also both confirm the above conclusion with PCE enhancements of 3.21% and 2.98%, respectively. These results suggest that the CsPbCl3:Mn QDs play a significant role in improving the efficiency and stability of photovoltaic devices. To our knowledge, this is the first report about CsPbCl3:Mn QD-assisted perovskite solar cells.
语种英语
WOS记录号WOS:000405979900001
引用统计
被引频次:38[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152037
专题中国科学院大连化学物理研究所
作者单位1.Shaanxi Normal Univ, Natl Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Shaanxi, Peoples R China
2.Shaanxi Normal Univ, Shaanxi Key Lab Adv Energy Devices, Xian 710119, Shaanxi, Peoples R China
3.Shaanxi Normal Univ, Shaanxi Engn Lab Adv Energy Technol, Sch Mat Sci & Engn, Xian 710119, Shaanxi, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, iChEM, Dalian 116023, Peoples R China
5.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
6.Yuncheng Univ, Dept Phys & Elect Engn, Yuncheng 044000, Peoples R China
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Wang, Qian,Zhang, Xisheng,Jin, Zhiwen,et al. Energy-Down-Shift CsPbCl3:Mn Quantum Dots for Boosting the Efficiency and Stability of Perovskite Solar Cells[J]. ACS ENERGY LETTERS,2017,2(7):1479-1486.
APA Wang, Qian.,Zhang, Xisheng.,Jin, Zhiwen.,Zhang, Jingru.,Gao, Zhenfei.,...&Liu, Shengzhong Frank.(2017).Energy-Down-Shift CsPbCl3:Mn Quantum Dots for Boosting the Efficiency and Stability of Perovskite Solar Cells.ACS ENERGY LETTERS,2(7),1479-1486.
MLA Wang, Qian,et al."Energy-Down-Shift CsPbCl3:Mn Quantum Dots for Boosting the Efficiency and Stability of Perovskite Solar Cells".ACS ENERGY LETTERS 2.7(2017):1479-1486.
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