Ultrafast Antisolvent Growth of Single-Crystalline CsPbCl3 Microcavity for Low-Threshold Room Temperature Blue Lasing

Li Zhang; Jinshuai Zhang; Qiuyu Shang; Jiepeng Song; Chun Li; Wenna Du; Shulin Chen; Xinfeng Liu; Bingsuo Zou; Peng Gao; Qing Zhang

doi:10.1021/acsami.2c02811

Ultrafast Antisolvent Growth of Single-Crystalline CsPbCl₃ Microcavity for Low-Threshold Room Temperature Blue Lasing

ACS Appl Mater Interfaces. 2022 May 11;14(18):21356-21362. doi: 10.1021/acsami.2c02811. Epub 2022 Apr 26.

Authors

Li Zhang^{1

2}, Jinshuai Zhang², Qiuyu Shang², Jiepeng Song², Chun Li², Wenna Du^{3

4}, Shulin Chen⁵, Xinfeng Liu^{3

4}, Bingsuo Zou⁶, Peng Gao^{5

7}, Qing Zhang²

Affiliations

¹ School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
² School of Materials Science and Engineering, Peking University, Beijing 100871, China.
³ CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center of Excellence for Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.
⁴ University of Chinese Academy of Sciences, Beijing 100049, P. R. China.
⁵ Electron Microscopy Laboratory School of Physics, Peking University, Beijing 100871, P. R. China.
⁶ Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and School of Resources, Environments and Materials, Guangxi University, Nanning 530004, P. R. China.
⁷ Electron Microscopy Laboratory, International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, P. R. China.

PMID: 35471822
DOI: 10.1021/acsami.2c02811

Abstract

All-inorganic perovskite CsPbCl₃ has recently attracted considerable attention due to its great potentials for the development of high-efficiency, deep-blue optoelectronic devices. Particularly, single-crystalline CsPbCl₃ planar microstructures provide good platforms for both fundamental studies and nanophotonics applications from lasers and detectors to amplifiers. In this study, we report an ultrafast antisolvent deposition route to fabricate single-crystalline CsPbCl₃ microplatelets (MPs). The as-grown MPs exhibit uniform morphology, strong emission, and outstanding gain property. Room temperature photoluminescence lasing is realized at 428 nm with a low threshold of 11.5 μJ cm^-2 and high net optical gain up to 720 cm^-1. These findings advance fundamental understanding on the fabrication and optoelectronic applications of low-dimensional CsPbCl₃ perovskite structures.

Keywords: fabrication; microlaser; nanostructures; perovskites; photoluminescence spectroscopy.