| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Controllable Growth and Optical Properties of Inorganic Halide Perovskite CsPbCl3 Nanowires |
| DANG Chanjuan1,2, SHEN Xia2,*, ZHANG Baolong3, GUO Pengfei2,*
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1 School of Physics and Electronic Science, Shanxi Datong University, Datong 037009, Shanxi, China
2 College of Electronic Information and Optical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
3 School of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, Henan, China |
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Abstract Inorganic halide perovskite nanomaterials have attracted much attention in recent years due to their excellent photoelectronic properties, including high quantum efficiency, long carrier diffusion length, and controllable bandgaps. These excellent performances of semiconductor materials have played an important role in perovskite solar cells, photodetectors, light-emitting diodes, nano-lasers, optical waveguides, optical sensors and other optoelectronic devices. A chemical-vapor-deposition method for the preparation of inorganic halide perovskite CsPbCl3 nanowire and nanowire films was described in this work. Structure characterizations confirmed that the surface of the prepared nanofilms has smooth surfaces with high crystalline. The length and diameter of the nanowires were tens of microns and 100—200 nm, respectively. The optical investigations show that the emission wavelength of the CsPbCl3 thin film is 425 nm, which shows well agreement with the nanowires. The results of two-dimensional optical mapping and PL spectra show that the nanowires have excellent fluorescence emission properties with uniform emission along the axis of the wire, as well as excellent waveguide properties. This perovskite material provides a basic design strategy for future nano-optical communication and all-optical transmission devices.
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Published:
Online: 2025-05-29
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2025, Vol. 39 
