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The role of back reflectors in enhancing the absorption of weakly absorbing, long-wavelength light has been investigated as applied to amorphous silicon alloy solar cells. The reflectance and scattering properties of various types of back reflectors have been studied. The performance of p-i-n amorphous silicon alloy solar cells deposited on different back reflectors has been analyzed. The studies elucidate the role of back reflectors in improving the short-circuit current density and thereby the efficiency of the cell.
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Banerjee et al. (1991) studied this question.
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