Abstract
The special features resulting from the photon drag of intraband photoconductivity carriers in variable-gap semiconductors with intrinsic type conductivity and a forbidden-gap width which varies linearly with distance are considered theoretically. An analysis is made of the dependence of the photoconductivity on the gradient of the forbidden-gap width for different surface recombination rates and sample thicknesses. It is shown that a spatial inhomogeneity of the band structure in semiconductors enables their photoconductivity to be substantially increased, especially in the case of thick samples.
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Institute of Applied Physics at the Ivan Franko State University, L'vov. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 48–52, September, 1993.
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Savitskii, V.G., Sokolovskii, B.S. Intraband photoconductivity in variable-gap semiconductors produced by photon drag of charge carriers. Russ Phys J 36, 852–855 (1993). https://doi.org/10.1007/BF00558995
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DOI: https://doi.org/10.1007/BF00558995