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Title: Live-monitoring of Te inclusions laser-induced thermo-diffusion and annealing in CdZnTe crystals

The presence of Te inclusions is one of the main factors limiting performances of CdZnTe crystals as X-ray detectors. We show that by means of infrared laser radiation it is possible to move and anneal tellurium inclusions exploiting a thermo-diffusion mechanism. The process is studied live during irradiation by means of an optical microscope equipment. Experimental conditions, and, in particular, energy laser fluence, for annealing inclusions of different dimensions are determined.
Authors:
; ; ;  [1] ;  [1] ;  [2]
  1. Istituto Materiali Elettronica e Magnetismo – Consiglio Nazionale delle Ricerche, Parma (Italy)
  2. (Italy)
Publication Date:
OSTI Identifier:
22303854
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 25; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANNEALING; CADMIUM COMPOUNDS; CRYSTALS; DIFFUSION; EQUIPMENT; INCLUSIONS; IRRADIATION; LASER RADIATION; RADIATION DETECTORS; TELLURIUM COMPOUNDS; TERNARY ALLOY SYSTEMS; X RADIATION; ZINC COMPOUNDS