Preparation method for semiconductor nanowire orderly distributed in array mode

Abstract

A preparation method for semiconductor nanowires orderly distributed in an array mode includes the first step of washing a substrate to obtain a polished substrate without organisms or heavy metal or oxidation layers, the second step of arranging a thickness-adjustable aluminum layer on the substrate through evaporation, the third step of oxidizing the aluminum layer to obtain a porous anode alumina template according to an anode oxidation method, the fourth step of pouring precursor liquid in holes of the porous anode alumina template according to an electroplating method and achieving metal lattice array sedimentation in the holes of the porous anode alumina template by controlling the electroplating time, the fifth step of etching the porous anode alumina template in a wet mode through a solution to obtain a metal lattice array which is highly orderly distributed on the surface of the substrate and is uniform in quantum size, the sixth step of growing a required semiconductor nanowire array according to a gas-liquid-solid method with the metal lattice array as a catalyst, and the seventh step of removing the metal lattice array at the top end of the semiconductor nanowire array to complete preparation.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic new energy, and relates to a method for preparing a thin film battery, in particular to a method for preparing an ordered array of semiconductor nanowires, which applies a radial p-n junction structure of silicon nanowires to solar cells. Background technique [0002] As an important driving force for the sustainable development of the country, energy has always played the most important role. The current storage of fossil fuels (including non-renewable resources such as coal, oil, and natural gas) is decreasing year by year, and the energy crisis is becoming more and more serious. On the other hand, the consumption of fossil fuels The discharge of the products has seriously polluted the environment and seriously affected the living conditions of human beings. Solar photovoltaic power generation, as one of the clean and renewable new energy sources, has been widely recognized in the past half...

AI Technical Summary

Problems solved by technology

[0004] Although nano-radial p-n junction solar cells have good development prospects, it is still difficult to prepare ordered arrays of nanowires. The size of lithography, nanoimprinting, electron beam exposure and other technologies will make the cost extremely high. We can Using simple template method and growth method to prepare nanowire structure, so as to facilitate the wide application of nanowire in silicon thin film batteries

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