Continuous ion adsorbing preparation of multi-component sulfur photoelectric films

Abstract

The invention uses forerunner body solution of cation mixed in different ratio to manufacture solar power photo-electricity films, which are CulnS2, CulnSe2, Cu(In, Ga)Se2. The content and ratio of cation forerunner body solution is CuCl2:GaCl3:InCl3= 0.5:0:1-2:1:1. Ph value: 1-3. Sulphion source can use Na2S aqueous solution (ph value is 10-13, concentration is 0.1-1 mole / liter), Na2SeSO2, aqueous solution or thiourea solution. In the above cation forerunner body solution, anion forerunner solution, coating is made through continuing adsorption reaction, and the photo electrode film is obtained after 400-500deg.C heat treatment under argon atmosphere.

Description

technical field

[0001] The invention belongs to the continuous ion adsorption reaction preparation method of multi-element chalcogen photoelectric thin film. Background technique

[0002] With the rapid development of modern economy, people's demand for energy continues to expand. Conventional energy sources such as coal, oil, and natural gas, which are widely used at present, are bound to face serious shortages due to their non-renewability. In addition, the use of these energy sources is likely to cause great pollution to the environment. Solar power is likely to become the most important energy source in the future due to its renewable, clean and non-polluting characteristics. In recent years, with CuInSe 2 、Cu(In,Ga)Se 2 Thin-film solar cells, represented by chalcogenides, have attracted widespread attention and achieved rapid development due to their high conversion rate, less consumables, cheap substrates, and ease of mass production. [0...