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PREPARATION OF Cu x In y Ga z Se n (x=0-2, y=0-2, z=0-2, n=0-3) PRECURSOR FILMS BY ELECTRODEPOSITION FOR FABRICATING HIGH EFFICIENCY SOLAR CELLS
PREPARATION OF Cu x In y Ga z Se n (x=0-2, y=0-2, z=0-2, n=0-3) PRECURSOR FILMS BY ELECTRODEPOSITION FOR FABRICATING HIGH EFFICIENCY SOLAR CELLS
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机译:通过电沉积制备Cu x In y Ga z Se n(x = 0-2,y = 0-2,z = 0-2,n = 0-3)前驱膜以制造高效太阳能电池
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摘要
High quality thin films of copper-indium-gallium-diselenide useful in the production of solar cells are prepared by electrodepositing at least one of the constituent metals (18) onto a glass/Mo substrate (12, 14), followed by physical vapor deposition (20) of copper and selenium or indium and selenium to adjust the final stoichiometry of the thin film to approximately Cu(In,Ga)Se2. Using an AC voltage of 1-100 KHz in combination with a DC voltage for electrodeposition improves the morphology and growth rate of the deposited thin film. An electrodeposition solution comprising at least in part an organic solvent may be used in conjunction with an increased cathodic potential to increase the gallium content of the electrodeposited thin film.
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