Gigantic suppression of recombination rate in 3D lead-halide perovskites for enhanced photodetector performance

doi:10.1038/s41566-022-01151-3

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	Gigantic suppression of recombination rate in 3D lead-halide perovskites for enhanced photodetector performance
	K. J. Lee; R. Wei; Y. Wang; J. Zhang; W. Kong; S. K. Chamoli; T. Huang; W. Yu; M. ElKabbash and C. Guo
	2023
发表期刊	Nature Photonics
ISSN	17494885
卷号	17 期号:3 页码:236-243
摘要	Prolonging the carrier lifetime in lead-halide perovskite (LHP) can enable novel schemes for highly efficient energy-harvesting and photodetection applications. However, suppressing the recombination processes in LHP without chemical treatments remains an open challenge. Here we show that the recombination rate of three-dimensional LHP polycrystalline thin films can decrease significantly when placed on hyperbolic metamaterials. Through momentum-resolved imaging, we reveal that these LHP films possess a dominant in-plane transition dipole, which in turn is responsible for the decrease in the recombination rate. We observe a decrease in the recombination rate of a MAPbI3 LHP thin film by ~50% and 30% when placed on a plasmonic mirror and a hyperbolic metamaterial, respectively. Furthermore, we discover a tenfold decrease in the recombination rate of (Cs0.06FA0.79MA0.15)Pb(I0.85Br0.15)3, and the origin of this giant reduction in the recombination process is discussed based on exciton-trapping dynamics. By controlling the recombination rate of LHPs, we demonstrate a 250% increase in photoresponsivity of LHP-based photodetectors. The resulting physical insights will provide novel means to enhance the efficiency of LHP-based optoelectronic and photonic devices. © 2023, The Author(s), under exclusive licence to Springer Nature Limited.
DOI	10.1038/s41566-022-01151-3
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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/181722/67592
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	K. J. Lee,R. Wei,Y. Wang,et al. Gigantic suppression of recombination rate in 3D lead-halide perovskites for enhanced photodetector performance[J]. Nature Photonics,2023,17(3):236-243.
APA	K. J. Lee.,R. Wei.,Y. Wang.,J. Zhang.,W. Kong.,...&M. ElKabbash and C. Guo.(2023).Gigantic suppression of recombination rate in 3D lead-halide perovskites for enhanced photodetector performance.Nature Photonics,17(3),236-243.
MLA	K. J. Lee,et al."Gigantic suppression of recombination rate in 3D lead-halide perovskites for enhanced photodetector performance".Nature Photonics 17.3(2023):236-243.

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