3D branch semiconductor nano heterojunction photoelectrode material and preparing method thereof

Abstract

The invention discloses a 3D branch semiconductor nano heterojunction photoelectrode material and a preparing method thereof. The heterojunction photoelectrode material is compounded by CuO and ZnO, and is in a 3D branch structure. In the method, ZnO branch nanobars are synthesized on the CuO nanobars, a branch nano structure is realized, and a 3D branch semiconductor nano heterojunction photocathode is prepared, which effectively increases absorption for sunlight, thereby accelerating effective separation of an electron hole pair, further reducing composition thereof, promoting charge transmission, optimizing photoelectric conversion efficiency of a traditional single semiconductor electrode, and improving photolysis efficiency of water; in addition, the material has advantages of environment friendliness and low cost, and has good application prospect.

Description

technical field

[0001] The invention relates to a photoelectrochemical battery electrode material and a preparation method thereof, in particular to a 3D branched semiconductor nano-heterojunction photoelectrode material and a preparation method thereof. Background technique

[0002] The depletion of fossil fuels has become a well-known problem since the development of human beings, and various corresponding methods to improve this crisis have attracted widespread attention. Solar energy, as an inexhaustible and inexhaustible Energy is a powerful resource to solve this problem, and the corresponding solar cell is a device that converts solar energy into chemical energy, but the biggest shortcoming of this device is that it only works when there is sun Only when it can work, can it create energy that can be used by human beings. This inevitable defect will obviously limit its large-scale application. It is undoubtedly the most effective way to solve this problem by storing th...

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