Functional EVA (ethylene vinyl acetate) adhesive film of solar cell

• Main Author: SUN GUANXING
• Format: Patent
• Language: Chinese; English
• Published: 15.02.2012
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; DYES; 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; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; 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; USE OF MATERIALS AS ADHESIVES

The invention relates to the field of solar cells and discloses a functional EVA (ethylene vinyl acetate) adhesive film of the solar cell. The adhesive film has the light enhancing effect. The functional EVA adhesive film of the solar cell comprises the following raw materials in parts by weight: 100 parts of ethylene-vinyl acetate copolymer; 0.1-15 parts of cross-linking agent; 0.05-3 parts of antioxidant; 0.01-5 parts of light stabilizer; 0.01-1 part of silane coupling agent; 0.1-20 parts of titanium/silicon-containing compound; and 0.1-6 parts of light enhancing agent. The functional EVA adhesive film of the solar cell can increase the luminous flux and gradually increase the light wavelength by adding one or more of compound materials to modify the original EVA adhesive film. On the basis of the original photoelectric conversion efficiency of the solar cell, the photoelectric conversion efficiency can be further improved by above 2%.