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Electronic properties of chlorine doped cadmium telluride used as high energy photoconductive detector

Abstract

A new high energy X-ray chlorine doped Cadmium Telluride (CdTe:Cl) photoconductor is described. We discuss different deposition techniques (Sputtering, Evaporation, Electroless) to realize ohmic contacts which have low leakage current and which allow high applied electric field. The temperature dependence of the dark current give an activation energy of 0.6 eV for standard CdTe:Cl. The transient response of photoconductors under high X-ray energy beams has been characterized using three different pulse duration 150 ps, 30 ns and 4 {mu}s. Sensitivity and speed of response are studied as a function of neutron pre-irradiated doses (0, 10{sup 14}, 10{sup 15}, 10{sup 16} n/cm{sup 2}): neutron irradiations reduce the carrier lifetime at the expense of a lower sensitivity.
Publication Date:
Dec 31, 1991
Product Type:
Conference
Report Number:
CEA-CONF-10785; CONF-9109209-
Reference Number:
SCA: 440101; PA: FRD-92:001621; SN: 92000762397
Resource Relation:
Conference: 7. international workshop on room temperature - semiconductor X-ray and gamma-ray detectors and associated electronics,Ravello (Italy),23-28 Sep 1991; Other Information: PBD: 1991
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; X-RAY RADIOGRAPHY; PHOTOCONDUCTORS; CADMIUM TELLURIDES; DOPED MATERIALS; SIGNALS; CHLORINE ADDITIONS; SPUTTERING; EVAPORATION; HALL EFFECT; PULSE RISE TIME; 440101; GENERAL DETECTORS OR MONITORS AND RADIOMETRIC INSTRUMENTS
OSTI ID:
10153406
Research Organizations:
CEA Centre d`Etudes de Grenoble, 38 (France). Direction des Technologies Avancees
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE92530399; TRN: FR9201621
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
FRN
Size:
3 p.
Announcement Date:
Jul 17, 1992

Citation Formats

Verger, L, Cuzin, M, Gaude, G, Glasser, F, Mathy, F, Rustique, J, and Schaub, B. Electronic properties of chlorine doped cadmium telluride used as high energy photoconductive detector. France: N. p., 1991. Web.
Verger, L, Cuzin, M, Gaude, G, Glasser, F, Mathy, F, Rustique, J, & Schaub, B. Electronic properties of chlorine doped cadmium telluride used as high energy photoconductive detector. France.
Verger, L, Cuzin, M, Gaude, G, Glasser, F, Mathy, F, Rustique, J, and Schaub, B. 1991. "Electronic properties of chlorine doped cadmium telluride used as high energy photoconductive detector." France.
@misc{etde_10153406,
title = {Electronic properties of chlorine doped cadmium telluride used as high energy photoconductive detector}
author = {Verger, L, Cuzin, M, Gaude, G, Glasser, F, Mathy, F, Rustique, J, and Schaub, B}
abstractNote = {A new high energy X-ray chlorine doped Cadmium Telluride (CdTe:Cl) photoconductor is described. We discuss different deposition techniques (Sputtering, Evaporation, Electroless) to realize ohmic contacts which have low leakage current and which allow high applied electric field. The temperature dependence of the dark current give an activation energy of 0.6 eV for standard CdTe:Cl. The transient response of photoconductors under high X-ray energy beams has been characterized using three different pulse duration 150 ps, 30 ns and 4 {mu}s. Sensitivity and speed of response are studied as a function of neutron pre-irradiated doses (0, 10{sup 14}, 10{sup 15}, 10{sup 16} n/cm{sup 2}): neutron irradiations reduce the carrier lifetime at the expense of a lower sensitivity.}
place = {France}
year = {1991}
month = {Dec}
}