Thin-film solar battery barrier with flexible substrate and production method thereof

Abstract

The barrier layer of thin film solar cell with a flexible substrate is composed of a metallic nickel layer or metallic titanium layer with 30-50nm thickness. It can prevent from metallic aluminum of back electrode entering into main body of cell at preparation of cell. Forming a barrier layer between back electrode and silicon-based film of cell doesní»t influence reflection of incident light, and meanwhile increases its light path action in absorbing layer of cell.

Description

technical field

[0001] The present invention relates to a method for preparing a semiconductor thin film device with a flexible substrate, and more particularly, to a barrier layer of a thin film solar cell with a flexible substrate and a preparation method thereof. Background technique

[0002] A solar cell is a device that directly converts light energy into electrical energy, among which silicon-based thin-film solar cells are the most widely used. Typically, silicon-based thin-film solar cells are deposited in the P-I-N order on glass substrates. The solar cell with flexible material as the substrate has low production cost, is easy to realize super-large area production, and is not limited by the area and shape in use. The polymer is light in weight, can be used as a battery substrate to obtain a high power-to-weight ratio, and can be bent arbitrarily. These advantages are beneficial to the application of solar cells in various special occasions such as satellites, sp...

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