Method for preparing solar cell absorbing layer CTS film through oxide nanometer particles

• Main Authors: WANG WEIHUANG, CHEN SHUIYUAN, CHEN GUILIN, HUANG ZHIGAO
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2016
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention relates to the technical field of solar cell material and devices, and particularly to a method for preparing a solar cell absorbing layer CTS film through oxide nanometer particles. The method comprises the steps of synthesizing oxide nanometer particle powder which comprises copper and tin through one-step low-temperature solid-phase reaction, dispersing the oxide nanometer powder into an organic solvent, performing wet grinding for forming stable precursor slurry; cleaning the surface of a substrate, depositing the precursor slurry on the substrate for forming a copper-pin oxide precursor film; and annealing the precursor film in a sulfur (S) atmosphere or in a closed or communicated tubular furnace, thereby obtaining the absorbing layer CTS film of the invention. The method realizes preparation of the oxide precursor which comprises zinc and tin in a non-vacuum and atmosphere environment. The method has advantages of abundant and cheap synthetic raw materials, simple process, easy control, e