Local Background Hole Density Drives Nonradiative Recombination in Tin Halide Perovskites

被引：7
作者：
Westbrook, Robert J. E. [1 ]
Taddei, Margherita [1 ]
Giridharagopal, Rajiv [1 ]
Jiang, Meihuizi [2 ,3 ]
Gallagher, Shaun M. [1 ]
Guye, Kathryn N. [1 ]
Warga, Aaron I. [1 ]
Haque, Saif A. [2 ,3 ]
Ginger, David S. [1 ,4 ]
机构：
[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA
[2] Imperial Coll London, Dept Chem, London W12 0BZ, England
[3] Imperial Coll London, Ctr Processable Elect, Mol Sci Res Hub, London W12 0BZ, England
[4] Pacific Northwest Natl Lab, Phys Sci Div, Phys & Computat Sci Directorate, Richland, WA 99352 USA
来源：
ACS ENERGY LETTERS | 2024年 / 9卷 / 02期
基金：
英国工程与自然科学研究理事会; 美国国家科学基金会;
关键词：
SN(II) OXIDATION; SOLAR-CELLS; PERFORMANCE; EFFICIENCY;
D O I：
10.1021/acsenergylett.3c02701
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We use multimodal microscopy to study carrier recombination in semiconducting tin halide perovskite films based on PEA(0.2)FA(0.8)SnI(3) (PEA = phenethylammonium; FA = formamidinium). We use the observation of pseudo-first-order photoluminescence (PL) decay kinetics to establish a method for quantifying the hole dopant level and nonradiative recombination rate constant. We find that untreated PEA(0.2)FA(0.8)SnI(3) films exhibit large hole doping concentrations of p(0) approximate to 10(19) cm(-3), which is reduced to p(0) approximate to 10(16) cm(-3) after SnF2 treatment. While it is well-known that the radiative recombination rates are increased with p(0), we reveal that the nonradiative rate is also increased. We find that p-type regions in untreated PEA(0.2)FA(0.8)SnI(3) films are centers for nonradiative recombination, which are diminished in films with p(0) approximate to 10(16) cm(-3). We discover significant PL heterogeneity even in PEA(0.2)FA(0.8)SnI(3) films with moderate dopant levels, suggesting that new strategies to eliminate deleterious defects in PEA(0.2)FA(0.8)SnI(3) must be developed.
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收藏
页码：732 / 739
页数：8
相关论文
共 47 条
[41]   Universal Current Losses in Perovskite Solar Cells Due to Mobile Ions [J].
Thiesbrummel, Jarla ;
Le Corre, Vincent M. ;
Pena-Camargo, Francisco ;
Perdigon-Toro, Lorena ;
Lang, Felix ;
Yang, Fengjiu ;
Grischek, Max ;
Gutierrez-Partida, Emilio ;
Warby, Jonathan ;
Farrar, Michael D. ;
Mahesh, Suhas ;
Caprioglio, Pietro ;
Albrecht, Steve ;
Neher, Dieter ;
Snaith, Henry J. ;
Stolterfoht, Martin .
ADVANCED ENERGY MATERIALS, 2021, 11 (34)
[42]   Effect of electronic doping and traps on carrier dynamics in tin halide perovskites [J].
Treglia, Antonella ;
Ambrosio, Francesco ;
Martani, Samuele ;
Folpini, Giulia ;
Barker, Alex J. ;
Albaqami, Munirah D. ;
De Angelis, Filippo ;
Poli, Isabella ;
Petrozza, Annamaria .
MATERIALS HORIZONS, 2022, 9 (06) :1763-1773
[43]   Reducing Surface Recombination Velocities at the Electrical Contacts Will Improve Perovskite Photovoltaics [J].
Wang, Jian ;
Fu, Weifei ;
Jariwala, Sarthak ;
Sinha, Irika ;
Jen, Alex K. -Y. ;
Ginger, David S. .
ACS ENERGY LETTERS, 2019, 4 (01) :222-227
[44]   Lewis Base Passivation Mediates Charge Transfer at Perovskite Heterojunctions [J].
Westbrook, Robert J. E. ;
Macdonald, Thomas J. ;
Xu, Weidong ;
Lanzetta, Luis ;
Marin-Beloqui, Jose M. ;
Clarke, Tracey M. ;
Haque, Saif A. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2021, 143 (31) :12230-12243
[45]   2D Phase Purity Determines Charge-Transfer Yield at 3D/2D Lead Halide Perovskite Heterojunctions [J].
Westbrook, Robert J. E. ;
Xu, Weidong ;
Liang, Xinxing ;
Webb, Thomas ;
Clarke, Tracey M. ;
Haque, Saif A. .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2021, 12 (13) :3312-3320
[46]   Enhancing the performance of tin-based perovskite solar cells through solvent purification of tin iodide [J].
Zeng, Guojun ;
Pu, Dexin ;
Huang, Lishuai ;
Guan, Hongling ;
Zhou, Shun ;
Zhou, Jin ;
Shen, Weicheng ;
Li, Guang ;
Fang, Guojia ;
Ke, Weijun .
JOURNAL OF MATERIALS CHEMISTRY A, 2023, 11 (21) :11245-11253
[47]   High-performance hysteresis-free perovskite transistors through anion engineering [J].
Zhu, Huihui ;
Liu, Ao ;
Shim, Kyu In ;
Jung, Haksoon ;
Zou, Taoyu ;
Reo, Youjin ;
Kim, Hyunjun ;
Han, Jeong Woo ;
Chen, Yimu ;
Chu, Hye Yong ;
Lim, Jun Hyung ;
Kim, Hyung-Jun ;
Bai, Sai ;
Noh, Yong-Young .
NATURE COMMUNICATIONS, 2022, 13 (01)
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