@inproceedings{fe8c91c84868435c8495f9bc05dc5662,
title = "Study on thermal annealing of cadmium zinc telluride (CZT) crystals",
abstract = "Cadmium Zinc Telluride (CZT) has attracted increasing interest with its promising potential as a room-temperature nuclear-radiation-detector material. However, different defects in CZT crystals, especially Te inclusions and dislocations, can degrade the performance of CZT detectors. Post-growth annealing is a good approach potentially to eliminate the deleterious influence of these defects. At Brookhaven National Laboratory (BNL), we built up different facilities for investigating post-growth annealing of CZT. Here, we report our latest experimental results. Cd-vapor annealing reduces the density of Te inclusions, while large temperature gradient promotes the migration of small-size Te inclusions. Simultaneously, the annealing lowers the density of dislocations. However, only-Cd-vapor annealing decreases the resistivity, possibly reflecting the introduction of extra Cd in the lattice. Subsequent Te-vapor annealing is needed to ensure the recovery of the resistivity after removing the Te inclusions.",
keywords = "CZT, Te inclusions, annealing, dislocations, radiation detection",
author = "G. Yang and Bolotnikov, {A. E.} and Fochuk, {P. M.} and Camarda, {G. S.} and Y. Cui and A. Hossain and K. Kim and J. Horace and B. McCall and R. Gul and L. Xu and Kopach, {O. V.} and James, {R. B.}",
year = "2010",
doi = "10.1117/12.861372",
language = "English",
isbn = "9780819483010",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII",
note = "Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII ; Conference date: 02-08-2010 Through 04-08-2010",
}