Photostimulation response zero-dimensional indium-based hybrid metal halide as well as preparation method and application thereof

The invention relates to a photostimulation response zero-dimensional indium-based hybrid metal halide and a preparation method and application thereof, the chemical formula of the photostimulation response zero-dimensional indium-based hybrid metal halide is (HStpy) 2InCl5, and Stpy represents 4-styryl pyridine. The preparation method comprises the following steps: dissolving styrylpyridine and indium chloride in concentrated hydrochloric acid according to a molar ratio of 1: (0.5-1), heating at 60-110 DEG C for 1-60 minutes, and naturally cooling after dissolving; the preparation method is simple, and reaction conditions are mild. The photo-stimulus response zero-dimensional indium-based hybrid metal halide has photo-actuating properties such as short response time, high speed and high strength, can be subjected to [2 + 2] cycloaddition reaction under the irradiation of light of 400-450 nm, and is accompanied by strong photo-actuating phenomena such as cracking, jumping, fragmentation and bursting in the re