A kind of suede transparent conductive film with periodic structure and preparation method thereof

Abstract

A kind of suede transparent conductive film with a periodic structure, including a glass substrate layer, a first layer of ZnO film that acts as a template, and a second layer of ZnO film that acts as a modification to form a laminated structure in turn. The thickness of the first layer of ZnO film is 300-1500nm, the thickness of the second layer of ZnO film is 400-1000nm, which constitutes a periodic structure suede transparent conductive film with scattering effect; its preparation method: assemble PS microspheres by water bath method, and use O2 plasma to etch PS microspheres , using the template effect of PS microspheres to obtain a light-trapping ZnO transparent conductive film with a periodic structure. The advantages of the present invention are: the prepared ZnO thin film has a good light-trapping effect, can be used as a front electrode for thin-film solar cells, and has a good scattering effect in the wavelength range that can be used by 400-1100nm cells, and can increase the incidence of incident light on silicon substrates. The optical path in thin film cells improves light utilization efficiency.

Description

technical field [0001] The invention belongs to the preparation technology of a transparent conductive film of a thin film solar cell, in particular to a suede transparent conductive film with a periodic structure and a preparation method thereof. Background technique [0002] In the 21st century, energy security and environmental protection have become global issues. Many countries in the world regard the development of renewable energy as an important measure to alleviate energy supply contradictions and address climate change, and have formulated development strategies, put forward clear development goals and corresponding incentive policies. Photovoltaic power generation is one of the internationally recognized effective ways to solve the problems of energy shortage and environmental pollution. The carrier of photovoltaic power generation is solar cells, and the key to making solar cells an important part of future energy is to reduce the cost of photovoltaic power gen...

AI Technical Summary

Problems solved by technology

However, in order to obtain good light trapping after wet etching of ZnO films prepared by sputtering technology, the "crater-like" feature size and roughness need to be large, and such ZnO films can only be sputtered at high temperature (greater than 250oC )

On the one hand, this limits the substrates for battery applications, and on the other hand, it also increases the cost of preparing batteries.

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