Abstract
Laser has received widespread attention in research on assisting the preparation of nanomaterials due to its good monochromaticity, high coherence and energy concentration. In this work, we report a simple and efficient large-scale preparation of CsPbI3 nanorods using a laser-assisted solvothermal method. By adjusting the wavelength (375 nm, 405 nm, 520 nm) and light intensity of the laser, the length and cross-sectional width of the nanorods can be significantly adjusted, reflecting the controllable preparation of CsPbI3 nanorods. In particular, under the irradiation of 375 nm laser with a light intensity of 84.2 mW/cm2, the length of the nanorods is reduced by 40.9 % and the cross-section width is increased by 62.6 %. The controllable preparation of CsPbI3 nanorods is mainly attributed to the laser energy promoting nucleation and promoting ligand desorption.
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