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International Symposium On Cadmium Telluride: Physical Properties And Applications 2, Strasbourg : France (1976)
Methods to suppress polarization in chlorine compensated cadmium telluride detectors
P. Siffert1, M. Hage-Ali1, R. Stuck1, A. Cornet1
(1977)

In a first part of this paper, the different models of polarization developped in the literature are critically analyzed. Then, the origin of the responsible center, its location within the bandgap and its concentration is investigated and discussed. Finally, three methods to suppress this effect are presented, mainly surface oxidation in perhydrol of the etched sample prior to the metal deposition, evaporation of a thin SiOx layer or ion implantation.
1 :  IReS - Institut de Recherches Subatomiques
Physique/Articles anciens
cadmium compounds – gamma ray spectrometers – II VI semiconductors – oxidation – polarisation – semiconductor counters – surface oxidation – perhydrol – ion implantation – polarisation suppression – SiO sub x layer evaporation – Cl compensated CdTe detectors
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