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US 12,641,909 B2Granted
Method of fabricating a halide perovskite
AssigneeCity University of Hong Kong
InventorsChung Yin Johnny Ho, You Meng, Zhengxun Lai, Wei Wang
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Abstract
A method of fabricating a halide perovskite having a general formula of ABX3, wherein A, B, and X are inorganic elements and X is a halide, the method including a vapor-liquid-solid process triggered by a catalyst formed from a noble metal; A nanowire of the halide perovskite and a photoelectronic device thereof.
Claims24
A method of fabricating a halide perovskite having a general formula of ABX3, wherein A, B, and X are inorganic elements and X is a halide, the method comprising:
- providing a noble metal catalyst on a growth substrate;
- conducting a vapor-liquid-solid process, wherein the noble metal catalyst reacts with a vapor-phase B to form a molten alloy via a spontaneous exothermic nucleation process, and wherein the molten alloy acts as a preferential adsorption site for vapor sources comprising A, B, and X until a supersaturated molten alloy is formed, thereby enabling growth of the halide perovskite on the growth substrate;
- and
- precipitating the halide perovskite from the supersaturated molten alloy.
1 more element
Dependencies are inferred from the claim text.