Abstract
ABSTRACT The effect of grain boundary recombination velocity, diffusion length in the bulk of the grain and the grain size on the photocurrent is studied with the help of a comprehensive mathematical formulation. The behaviour of the spectral response at long and short wavelengths is discussed. The effective diffusion length for polycrystalline silicon is determined as a function of the bulk grain diffusion length, grain size and the grain boundary recombination velocity.
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