Author(s): Sun, MF (Sun, Mingfei); Wang, J (Wang, Jian); Li, QC (Li, Qicong); Jia, XH (Jia, Xiaohao); Huang, ZT (Huang, Zhitao); Sun, JQ (Sun, Jiaqian); Chu, KW (Chu, Kaiwen); Liu, K (Liu, Kong); Jin, P (Jin, Peng); Wang, ZJ (Wang, Zhijie); Qu, SC (Qu, Shengchun)

Source: JOURNAL OF PHYSICS D-APPLIED PHYSICS Volume: 54 Issue: 27 Article Number: 275103 DOI: 10.1088/1361-6463/abf53a Published: JUL 8 2021

Abstract: Cesium lead halide (CsPbBr3) perovskite nanomaterials exhibit attractive optical properties, particularly in higher nonlinear optical effects and larger multiphoton absorption efficiency, compared with conventional semiconductors. The unique feature of stable lasing action under photon pumping conditions grants such materials great potential in photonics. Herein, through an in-depth study of the growing mechanism, all-inorganic perovskite nanomaterials with a high crystalline quality and tunable morphologies were synthesized, by a modified physical vapor deposition procedure. The prepared nanowire laser not only presents a high-performance laser output under single-photon pumping conditions, but also maintains decent behavior under two-photon pumping conditions. Importantly, the temperature-dependent fluorescence spectroscopy test of the nanowires reveals that the high exciton binding energy, twice as large as the thermal disturbance at room temperature, is the dominant reason for maintaining stable lasing under high energy density injection conditions.

Accession Number: WOS:000644155500001

ISSN: 0022-3727

eISSN: 1361-6463

Full Text: https://iopscience.iop.org/article/10.1088/1361-6463/abf53a