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PASSIVATION METHODS AND APPARATUS FOR ACHIEVING ULTRA-LOW SURFACE RECOMBINATION VELOCITIES FOR HIGH-EFFICIENCY SOLAR CELLS
PASSIVATION METHODS AND APPARATUS FOR ACHIEVING ULTRA-LOW SURFACE RECOMBINATION VELOCITIES FOR HIGH-EFFICIENCY SOLAR CELLS
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机译:实现高效太阳能电池超低表面重组速度的钝化方法和装置
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摘要
The disclosed subject matter provides a method and structure for obtaining ultra-low surface recombination velocities from highly efficient surface passivation in crystalline silicon substrate-based solar cells by utilizing a bi-layer passivation scheme which also works as an efficient ARC. The bi-layer passivation consists of a first thin layer of wet chemical oxide or a thin hydrogenated amorphous silicon layer. A second layer of amorphous hydrogenated silicon nitride film is deposited on top of the wet chemical oxide or amorphous silicon film. This deposition is then followed by annealing to further enhance the surface passivation.
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