Effects of thermal annealing on the structural properties of CdZnTe crystals

G. Yang; A. E. Bolotnikov; P. M. Fochuk; Y. Cui; G. S. Camarda; A. Hossain; K. H. Kim; J. Horace; B. McCall; R. Gul; O. V. Kopach; S. U. Egarievwe; R. B. James

doi:10.1117/12.894961

27 September 2011 Effects of thermal annealing on the structural properties of CdZnTe crystals

G. Yang; A. E. Bolotnikov; P. M. Fochuk; Y. Cui; G. S. Camarda; A. Hossain; K. H. Kim; J. Horace; B. McCall; R. Gul; O. V. Kopach; S. U. Egarievwe; R. B. James

Author Affiliations +

Proceedings Volume 8142, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIII; 814217 (2011) https://doi.org/10.1117/12.894961
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

Although cadmium zinc telluride (CZT) is one of leading materials for fabricating room-temperature nuclear-radiation- detectors, different defects in the crystals can degrade the performance of CZT detectors. Post-growth thermal annealing potentially offers a satisfactory way to eliminate the deleterious influence of these defects. Here, we report that the annealing of CZT in Cd vapor effectively lowers the density of Te inclusions. It takes a much longer annealing time to eliminate separate large Te inclusions than small ones; however, the annealing time is greatly reduced when the large Te inclusions are distributed along grain boundaries. We found that sub-grain boundaries still exist after the annealing at 500 °C, indicating that a higher annealing temperature might be needed.

Citation Download Citation

G. Yang, A. E. Bolotnikov, P. M. Fochuk, Y. Cui, G. S. Camarda, A. Hossain, K. H. Kim, J. Horace, B. McCall, R. Gul, O. V. Kopach, S. U. Egarievwe, R. B. James, "Effects of thermal annealing on the structural properties of CdZnTe crystals", Proc. SPIE 8142, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XIII, 814217 (27 September 2011); doi: 10.1117/12.894961; https://doi.org/10.1117/12.894961

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years