Solution-processed lead-free double perovskite microplatelets with enhanced photoresponse and thermal stability

doi:10.1007/s40843-021-1900-7

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	Solution-processed lead-free double perovskite microplatelets with enhanced photoresponse and thermal stability
	Z. X. Lai; F. Wang; Y. Meng; X. M. Bu; X. L. Kang; Q. Quan; W. Wang; S. P. Yip; C. T. Liu and J. C. Ho
	2022
发表期刊	Science China-Materials
ISSN	2095-8226
卷号	65 期号:5 页码:1313-1319
摘要	Due to the better stability and environment-friendly nature, lead-free halide double perovskites are widely explored as promising materials for next-generation photo-voltaics and optoelectronics; however, to date, their photoelectric device performance is still not satisfactory. Herein, we report a facile solution-process method to synthesize the recently most popular lead-free halide double perovskite, MA(2)AgBiBr(6), and its all-inorganic counterpart, Cs2AgBiBr6. The obtained MA(2) AgBiBr6 and Cs2AgBiBr6 films exhibit the microplatelet morphology with excellent crystallinity, distinctly contrasting the ones fabricated by the conventional spin-coating method. Once fabricated into simple photodetectors, the Cs2AgBiBr6 microplatelet devices yield a respectable responsivity of 245 mA W-1 that is two orders of magnitude larger than that of the spin-coated films. More importantly, the response speed of the Cs2AgBiBr6 microplatelets device is as fast as 145 mu s, which is higher than most of the values reported in the community of halide double perovskites. When subjected to the thermal stability testing, the Cs2AgBiBr6 microplatelet device can maintain its initial performance after heating to 160 degrees C and cooling down to room temperature in the ambient environment. All these results suggest that the facile solution-process method is capable of fabricating high-quality lead-free double perovskites, enabling their advanced device applications.
DOI	10.1007/s40843-021-1900-7
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67096
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	Z. X. Lai,F. Wang,Y. Meng,et al. Solution-processed lead-free double perovskite microplatelets with enhanced photoresponse and thermal stability[J]. Science China-Materials,2022,65(5):1313-1319.
APA	Z. X. Lai.,F. Wang.,Y. Meng.,X. M. Bu.,X. L. Kang.,...&C. T. Liu and J. C. Ho.(2022).Solution-processed lead-free double perovskite microplatelets with enhanced photoresponse and thermal stability.Science China-Materials,65(5),1313-1319.
MLA	Z. X. Lai,et al."Solution-processed lead-free double perovskite microplatelets with enhanced photoresponse and thermal stability".Science China-Materials 65.5(2022):1313-1319.

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