Study of photoconductive PbTe films by the method of variance analysis of X-ray diffraction profiles
- 1 April 1976
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 9 (5) , 795-798
- https://doi.org/10.1088/0022-3727/9/5/012
Abstract
Effective crystalline size and strain in 'as-grown' and annealed photoconductive PbTe films of various thicknesses ( approximately 2000 AA and greater) have been determined by the method of variance analysis of the X-ray diffraction line profiles. Photosensitivity measurements have been made on the same films and it has been observed that there is a decrease in photosensitivity and microstrain with increase in crystallite size. The crystallite size increases and microstrain decreases when the films are heat-treated at 200 degrees C but the photosensitivity is markedly increased. The effect is probably due to chemisorbed oxygen.Keywords
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