Preparation method of nano solar battery based on CuS quasi one-dimensional nanostructure

Abstract

The invention discloses a preparation method of a nano solar battery based on a CuS quasi one-dimensional nanostructure, comprising the following steps: first, preparing a pair of metal film electrodes on the CuS quasi one-dimensional nanostructure by primary ultra-violet lithography, wherein the pair of metal film electrodes are communicated through the CuS quasi one-dimensional nanostructure and have an ohmic contact with the CuS quasi one-dimensional nanostructure; then inserting an indium tin oxide (ITO) transparent film electrode in the pair of metal film electrodes through secondary ultra-violet lithography, wherein the ITO film electrode has a Schottky cross-contact with the CuS quasi one-dimensional nanostructure to form a CuS / ITO Schottky-structured nano solar battery. The method is simple, practicable, stable and reliable, and can be used for preparing the Schottky-structured nano solar batteries with various nano dimensions.

Description

1. Technical field [0001] The invention relates to a method for preparing a semiconductor device, in particular to a method for preparing a nano solar cell based on a CuS quasi-one-dimensional nanostructure. 2. Background technology [0002] Solar energy is considered to be the most important new energy in the 21st century due to its advantages over other conventional energy sources such as sufficient cleanliness, absolute safety, relative breadth and adequacy of resources, long life, and easy maintenance. Inorganic semiconductor quasi-one-dimensional nanostructures have the characteristics of high crystallinity, high purity, direct electron channel and fast electron transport, and have important applications in nanoscale solar cells. At present, the main nano solar cells are: dye-sensitized solar cells, inorganic nanoparticle solar cells, nanocrystalline polymer solar cells and so on. Compared with traditional single crystal and thin film solar cells, nano solar cells have...

AI Technical Summary

Problems solved by technology

In the 1980s, based on Cu 2 S / CdS thin film solar cells have been studied, and in recent years based on Cu 2 Solar cells based on S nanocrystals have also been reported, but nanoscale solar cells based on CuS quasi-one-dimensional nanostructures are still rarely studied.

Mehta et al. used solvothermal method and partial replacement reaction to grow CdS-Cu x S single nanorod heterojunction, its photovoltaic device performance is significantly improved compared with thin-film solar cells, but its preparation process is complicated, and the controllability is poor, and the toxicity of n-type semiconductor material CdS also limits its wide application to a certain extent. use

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