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- W2042665798 abstract "The electrical conductivity and Hall mobility of mixed crystals of Znxd1-x)S have been measured from 95 to 300 K for a range of compositions with 0 ⩽ x ⩽ 0.45. Crystals were grown from the vapour phase over the full range of composition and were found to have the hexagonal wurtzite structure for 0 < x > 0.85. Lattice parameters and the forbidden bandgap were found to follow Vegard's law very closely. Crystals with x > 0.45 were semi-insulating and were unsuitable for electrical measurements. Crystals with 0 < x < 0.15 were essentially similar to CdS. There was only a relatively small reduction in the room temperature values of mobility and conductivity from 300 cm2 V-1 s-1 and 10 Ω-1 cm-1 at x = 0 to 235 cm2V-1s-1 and 1 Ω-1 cm-1 at x = 0.15. The mobility could be described as limited by a combination of polar optical, piezoelectric and ionized impurity scattering. With increasing zinc concentration beyond x = 0.15 the mobility collapsed dramatically, although the free electron concentration remained in the vicinity of 1017 cm-3 at least up to x = 0.45. For example mobilities were of the order of 5 cm2 V-1 s-1 at x = 0.25. The mobility of this compositional range decreased with decreasing temperature as T32 suggesting that ionised impurity scattering was now dominant. Other possible mechanisms, such as alloy and space charge scattering were also considered." @default.
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- W2042665798 date "1990-04-01" @default.
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- W2042665798 title "Hall mobility and conductivity in ZnxCd1-xS mixed crystals" @default.
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- W2042665798 doi "https://doi.org/10.1016/0022-0248(90)91092-5" @default.
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