Cu-Zn-Sn-S photovoltaic material, and preparation method and preparation device thereof

Abstract

The invention relates to the field of chemical industry, particularly relates to a Cu-Zn-Sn-S photovoltaic material, and a preparation method and a preparation device thereof. The photovoltaic material comprises 18-35 weight parts of Cu, 5-30 weight parts of Zn, 5-30 weight parts of Sn, and 25-45 weight parts of S. The preparation method comprises the following steps: A, respectively weighing Cu, Zn, Sn, and S according to the weight parts; B, mixing the weighed Cu, Zn, Sn and S and encapsulating, and conducting vacuum pumping; C, heating Cu, Zn, Sn and S in a vacuum; and D, cooling to obtain the Cu-Zn-Sn-S photovoltaic material. The preparation device comprises an encapsulation container, a vacuum container and a heating unit, wherein the encapsulation container is arranged in the vacuum container, and the vacuum container is arranged in the heating unit. According to the invention, the Cu-Zn-Sn-S photovoltaic material can be prepared by smelting process.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a copper-zinc-tin-sulfur photovoltaic material, a preparation method and a preparation device thereof. Background technique [0002] Energy crisis and environmental pollution have become major problems that human beings urgently need to face and solve. Many countries, especially some developed countries, regard the development and utilization of green energy as a national policy and give strong support and encouragement. Solar energy is not only an inexhaustible and inexhaustible natural energy source, but also has a high energy density (the solar energy density is about 1 kW / square meter near the equator), which is convenient for human use; There will be no pollution in the process. Therefore, solar energy is a new energy source that human beings focus on developing, and solar cells are effective equipment for utilizing solar energy to generate electricity, so they have become...

AI Technical Summary

Problems solved by technology

[0011] 1. Long production cycle and low production efficiency: the vulcanization process is generally not less than 12 hours;

[0012] 2. High energy consumption: the boiling point of S is 444.6°C, and the temperature of S is higher than 444.6°C;

[0013] 3. Consumes a lot of S: only part of S vapor can contact with Cu-Zn-Sn layer;

[0014] 4. The steam of S is highly toxic, which is easy to cause safety accidents: when gaseous S meets water (including water in the air), it will form gaseous H 2 S (is a poisonous gas); in addition, gaseous S is highly corrosive to other metals and easily leaks S vapor;

[0029] 3. The steam of S is highly toxic to humans

Images