A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals

Huanxin Yang; Xiangxiang Chen; Yiyue Chu; Changjiu Sun; Haolin Lu; Mingjian Yuan; Yuhai Zhang; Guankui Long; Libing Zhang; Xiyan Li

doi:10.1038/s41377-023-01117-2

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A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals

Original Articles

- A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals
- Light: Science & Applications Vol. 12, Issue 4, Pages: 613-624(2023)
- Affiliations：
  
  1.Institute of Photoelectronic Thin Film Devices and Technology, Solar Energy Conversion Center, Nankai University, Tianjin, 300350, China
  2.Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Nankai University, Tianjin, 300350, China
  3.Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education, Nankai University, Tianjin, 300350, China
  4.Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (IAIR), University of Jinan, Jinan, 250022, Shandong, China
  5.Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, Tianjin University, Tianjin, 300354, China
  6.Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, China
  7.School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
- Author bio：
  
  Xiyan Li (xiyan.li@nankai.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01117-2
  CLC：
- Published：30 April 2023，
  
  Published Online：20 March 2023，
  
  Received：6 October 2022，
  
  Revised：16 February 2023，
  
  Accepted：20 February 2023
Scan for full text
Yang, H. X.et al. A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals.Light: Science & Applications,12, 613-624 (2023).
DOI：

Yang, H. X.et al. A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals.Light: Science & Applications,12, 613-624 (2023). DOI： 10.1038/s41377-023-01117-2.

摘要

Abstract

Lead-free halide perovskite materials possess low toxicity

broadband luminescence and robust stability compared with conventional lead-based perovskites

thus holding great promise for eyes-friendly white light LEDs. However

the traditionally used preparation methods with a long period and limited product yield have curtailed the commercialization of these materials. Here we introduce a universal hydrochloric acid-assistant powder-to-powder strategy which can accomplish the goals of thermal-

pressure-free

eco-friendliness

short time

low cost and high product yield

simultaneously. The obtained Cs

0.9

0.1

0.95

0.05

microcrystals exhibit bright self-trapped excitons emission with quantum yield of (98.3 ± 3.8)%

which could retain (90.5 ± 1.3)% and (96.8 ± 0.8)% after continuous heating or ultraviolet-irradiation for 1000 h

respectively. The phosphor converted-LED exhibited near-unity conversion efficiency from ultraviolet chip to self-trapped excitons emission at ~200 mA. Various ions doping (such as Cs

0.9

0.1

InCl

: Ln

) and other derived lead-free perovskite materials (such as Cs

ZrCl

and Cs

MnBi

) with high luminous performance are all realized by our proposed strategy

which has shown excellent availability towards commercialization.

关键词

Keywords

references

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