Manufacturing method of sol-gel solution for CIGS solar cell

• Main Author: ZHUANG, QUAN-LONG
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2010
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; 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; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

A manufacturing method of sol-gel solution for CIGS (Cu-In-Ga-Se) solar cell is provided. Compounds containing Cu, In, Ga, and Se are mixed and then blended with dispersant, adhesive, thinner, leveling agent, antifreeze, reducing agent, stabilizer, delayed condensation agent, metal complexes agent and metal extraction solvent. Heating and stirring are then applied and followed by stirring during cooling down until finally the sol-gel solution is formed. The produced sol-gel solution is provided for the thin film processing usages such as printing, spraying, immersing or spin coating to form CIGS absorption layer on the CIGS solar cell.