Mobile defects as mediated states for charge-carrier trapping in metal halide perovskites quantum dots

doi:10.1063/5.0140911

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	Mobile defects as mediated states for charge-carrier trapping in metal halide perovskites quantum dots
	X.-Y. Liu; W.-P. Li; Y. Cui; S.-J. Li; R.-B. Yang; Z.-Q. Li and Z.-W. Wang
	2023
发表期刊	Applied Physics Letters
ISSN	00036951
卷号	122 期号:13
摘要	The migration motion of defects in metal halide perovskites' quantum dots (MHPQDs) results in charge-carrier trapping which has become more complicated. We study two-step trapping mediated by mobile defects between the ground state of MHPQDs and a fixed-depth defect using a full-configuration defect method, where all possible trapping processes mediated by these mobile defects could be reproduced and the fastest channels among them are picked out. We find that these two-step trapping processes could keep more one order of magnitude faster than these direct ones as mobile defects with the appropriate localization strength, which implies that these indirect trapping should play the crucial rule to determine the non-radiative recombination losses. These results provide the significant explanation for studying non-radiation processes of carriers in the presence of the migration defects in recent experiments. Moreover, this model will be available to analyze some key performance related defects in electronic devices. © 2023 Author(s).
DOI	10.1063/5.0140911
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67729
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X.-Y. Liu,W.-P. Li,Y. Cui,et al. Mobile defects as mediated states for charge-carrier trapping in metal halide perovskites quantum dots[J]. Applied Physics Letters,2023,122(13).
APA	X.-Y. Liu,W.-P. Li,Y. Cui,S.-J. Li,R.-B. Yang,&Z.-Q. Li and Z.-W. Wang.(2023).Mobile defects as mediated states for charge-carrier trapping in metal halide perovskites quantum dots.Applied Physics Letters,122(13).
MLA	X.-Y. Liu,et al."Mobile defects as mediated states for charge-carrier trapping in metal halide perovskites quantum dots".Applied Physics Letters 122.13(2023).

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