Zinc sulphide linear photodetector |
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Authors: | A. Tosser M. Arsalane A. Piel |
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Affiliation: | (1) Laboratoire d'Electronique et d'Automatique U.E.R. des Sciences et Techniques, B.P. 4006, 76077 Le Havre Cedex, France |
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Abstract: | Interband phototransitions and photoionization of coulombic centres allow linear detection of light intensity in Al/ZnS/Au photocells. The opposite spectral variations of photoconduction and apparent internal electric field lead to a maximum of spectral sensitivity of about 15A mW–1 in the u.v. region for 500 Å sulphide thickness. Adequate simplified band models are proposed. |
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