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- W2065656841 abstract "The calculation of the d.c. photoconductivity at different generation rates vs. the inverse temperature and the fitting to data measured for undoped amorphous Si1−xGex:H alloys before and after light soaking show that the alloy is just as susceptible to light-induced defects as is amorphous hydrogenated silicon (a-Si:H). Our experimental results show that (i) although the state distribution and the capture rate constants of the dangling bond states (D30) are similar to those found for a-Si:H, the recombination parameters in the tail state region are anomalously large and we believe they are responsible for the major decreases in photoconductivity for the alloys, (ii) introducing light-induced D30 states at midgap and light-induced donors near the valence band edge in similar numbers as were found for a-Si:H explains the smaller decreases found in the photoconductivity of the alloys and (iii) comparing the properties of these two materials, we suggest that such an anomalously large increase in the capture rate constants is probably caused by microscopic heterostructures." @default.
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- W2065656841 date "1987-06-01" @default.
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- W2065656841 title "Temperature-dependent photoconductivity and light-induced changes in a-Si1−xGex:H alloys" @default.
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- W2065656841 doi "https://doi.org/10.1016/0379-6787(87)90120-7" @default.
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