Preparation method of surface coating for colored thin film solar cell
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A technology of thin-film solar cells and solar cells, applied in coatings, metal material coating processes, circuits, etc.
Inactive Publication Date: 2014-08-06
YUNNAN NORMAL UNIV
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But at present, the color of solar cells is either gray or black, and the color is monotonous. When combined with buildings, it will affect the appearance of buildings. Therefore, solar cells of different colors are required, that is, colored solar cells
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Embodiment 1
[0021] This embodiment follows the steps:
[0022] Sequentially use acetone, absolute ethanol and deionized water to ultrasonically clean the flat glass substrate for 10min~15min, rinse with absolute ethanol, and blow dry with N2;
[0023] JCP-450 three-target magnetron sputtering coating system is adopted, with a doping concentration of 2%~13%ZnO:B ceramic target as the raw material, and the sputtering gas is Ar gas with a purity of 99.99%;
[0024] The substrate temperature is room temperature~300℃, the background vacuum is 4.0×10-5pa~6.0×10-5pa, the flow rate of Ar gas is 10sccm~22 sccm, the sputtering pressure is adjusted to 0.5pa~1.5pa, and the power is 80w ~140w (0.4~1.2A,
[0025] 66~300V), the sputtering time is 5min~30min, and the ZnO:B thin film is prepared on the substrate by sputtering;
[0026] Put the ZnO:B film sample into the RTP-500 photothermal rapid annealing furnace, and perform rapid annealing at a temperature of 200°C~500°C for 5min~60min under N2 atm...
Embodiment 2
[0029] This embodiment follows the steps:
[0030] Sequentially use acetone, absolute ethanol and deionized water to ultrasonically clean the flat glass substrate for 10-15 minutes, rinse with absolute ethanol, and blow dry with N2;
[0031] The JCP-450 three-target magnetron sputtering coating system is adopted, the ZnO:B ceramic target with a doping concentration of 5%~25% is used as the raw material, and the sputtering gas is Ar gas with a purity of 99.99%;
[0032] The substrate temperature is from room temperature to 300°C, the background vacuum is 4.0×10-5pa~6.0×10-5pa, Ar gas with a purity of 99.999% is introduced, the gas flow is 10sccm~30sccm, and the sputtering pressure is adjusted to 0.5pa~ 1.5pa, the power is 80w~140w (0.4~1.2A, 66~300V), the sputtering time is 10min~30min, and the ZnO:B thin film is prepared on the substrate by sputtering;
[0033] Put the ZnO:B film into the RTP-500 photothermal rapid annealing furnace, and perform rapid annealing at a tempera...
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Abstract
The invention relates to a preparation method of a surface coating for a colored thin film solar cell, and belongs to the field of thin film solar cells. The preparation method of the surface coating mainly comprises steps as follows: ZnO:B ceramic targets with different doping concentrations are taken as raw materials, a ZnO:B thin film is sputtered and prepared on plate glass with a magnetron sputtering coating system, and ZnO:B thin films with different thicknesses can be obtained by controlling the sputtering condition; rapid annealing treatment is performed in N2 atmosphere, and micro-nano structure ZnO:B thin films with different grain sizes, crystallization ratios and the like can be obtained by controlling the annealing condition; and optical parameters of the refractive index, the reflectivity and the like of the ZnO:B thin films with different doping concentrations, thicknesses, grain sizes, crystallization ratios change, and the ZnO:B thin films can be used as transparent conductive oxidation films of the thin film solar cell and can show different colors on the surface of the cell, so that the colored thin film solar cell is prepared. The preparation method has the advantages as follows: the surface of the thin film cell can be endowed with different colors, and the effect of colored thin film solar cell is realized; and the surface inactivation can be realized, the life of a device is prolonged, a reflection layer can be formed, and absorption of the thin film cell absorption layer to sunlight is increased.
Description
technical field [0001] The invention relates to a preparation method for the surface coating of a colored thin-film solar cell, belonging to the field of thin-film solar cells. Background technique [0002] Solar energy is an inexhaustible clean energy. Under the background of energy crisis, environmental pollution and increasing building energy consumption, solar photovoltaic technology has been paid attention to by people, has achieved rapid development, and its application fields have gradually expanded. It is widely used in photovoltaic building integration, urban street lighting, urban landscape, traffic lights, billboards, etc. But at present, the color of solar cells is either gray or black, and the color is monotonous. When combined with buildings, it will affect the appearance of buildings. Therefore, solar cells of different colors are required, that is, colored solar cells. In addition, color solar cells also have unique advantages in some occasions that require...
Claims
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Application Information
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