Two photon pumped nanowire laser based on all inorganic perovskite with high exciton binding energy grown by physical vapor deposition
- 6 April 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 54 (27), 275103
- https://doi.org/10.1088/1361-6463/abf53a
Abstract
Cesium lead halide (CsPbBr3) perovskite nanomaterials exhibit attractive optical properties particularly in higher nonlinear optical effects and larger multiphoton absorption efficiency, comparing with the conventional semiconductors. The unique feature of stable lasing action under photon pumping conditions makes such materials with 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 a 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 larger than the thermal disturbance at room temperature, is the dominant reason for maintaining stable lasing under high energy density injection conditions.Funding Information
- National Natural Science Foundation of China (21975245)
- the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB43000000)
- Key Research Program of Frontier Science, Chinese Academy of Sciences (QYZDBSSW-SLH006)
- National Key Research and Development Program of China (2018YFE0204000)
- Youth Innovation Promotion Association of the Chinese Academy of Sciences (2020114)
- Beijing Nova Program (2020117)
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