scholarly journals Low-cost cadmium zinc telluride radiation detectors based on electron-transport-only designs

1999 ◽  
Author(s):  
B. A. Brunett ◽  
J. C. Lund ◽  
J. M. Van Scyoc ◽  
N. R. Hilton ◽  
E. Y. Lee ◽  
...  
Keyword(s):  
Electron Transport ◽  
Cadmium Zinc Telluride ◽  
Low Cost ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Cadmium Zinc

Formation and Characterization of CuPt-A type Ordered Structure in Cadmium Zinc Telluride Single Crystals

CrystEngComm ◽  
2022 ◽  
Author(s):  
Wanzhong Li ◽  
Jian Sun ◽  
Chong Deng
Keyword(s):  
Solar Cells ◽  
Single Crystals ◽  
Cadmium Zinc Telluride ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Ordered Structure ◽  
Ordered Phases ◽  
Different Types ◽  
Cadmium Zinc

Cadmium Zinc Telluride (CdZnTe) single crystals have been widely ultilized in various photoelectron devices such as radiation detectors and solar cells. Different types of ordered phases have also been investigated...

Surface passivation of cadmium zinc telluride radiation detectors by potassium hydroxide solution

2000 ◽  
Vol 29 (6) ◽  
pp. 708-712 ◽  
Author(s):  
Kaushik Chattopadhyay ◽  
Miguel Hayes ◽  
Jean-Olivier Ndap ◽  
Arnold Burger ◽  
W. J. Lu ◽  
...  
Keyword(s):  
Potassium Hydroxide ◽  
Surface Passivation ◽  
Cadmium Zinc Telluride ◽  
Potassium Hydroxide Solution ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Hydroxide Solution ◽  
Cadmium Zinc

Thickness scalability of large volume cadmium zinc telluride high resolution radiation detectors

2009 ◽  
Vol 105 (11) ◽  
pp. 114910 ◽  
Author(s):  
S. A. Awadalla ◽  
H. Chen ◽  
J. Mackenzie ◽  
P. Lu ◽  
K. Iniewski ◽  
...  
Keyword(s):  
High Resolution ◽  
Large Volume ◽  
Cadmium Zinc Telluride ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Cadmium Zinc

scholarly journals Post-growth Annealing of Cadmium Zinc Telluride Crystals for Room-Temperature Radiation Detectors

2012 ◽  
Vol 41 (10) ◽  
pp. 2912-2916 ◽  
Author(s):  
G. Yang ◽  
A.E. Bolotnikov ◽  
P.M. Fochuk ◽  
Y. Cui ◽  
G. S. Camarda ◽  
...  
Keyword(s):  
Room Temperature ◽  
Cadmium Zinc Telluride ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Temperature Radiation ◽  
Cadmium Zinc

scholarly journals Ion microbeam studies of cadmium zinc telluride radiation detectors by IBICC

1999 ◽  
Vol 158 (1-4) ◽  
pp. 437-444 ◽  
Author(s):  
György Vı́zkelethy ◽  
Bruce A. Brunett ◽  
David S. Walsh ◽  
Ralph B. James ◽  
Richard W. Olsen ◽  
...  
Keyword(s):  
Cadmium Zinc Telluride ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Cadmium Zinc

Thermal Annealing: A Technique to Improve the Performance of Cadmium Zinc Telluride (CZT) Material for Semiconductor Radiation Detector Applications

2012 ◽  
Author(s):  
Aaron L. Adams ◽  
Aschalew Kassu ◽  
Wing Chan ◽  
Mebougna Drabo ◽  
Rodney Pinder ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Thermal Annealing ◽  
Large Volume ◽  
Cadmium Zinc Telluride ◽  
Radiation Detector ◽  
Zinc Telluride ◽  
Radiation Detectors ◽  
Nuclear Radiation ◽  
Structural Defects ◽  
Cadmium Zinc

Extensive research was undertaken over the past 20 years to investigate the suitability of cadmium zinc telluride (CZT) crystals as a material for room-temperature nuclear-radiation detectors. Large-volume CZT crystals, with thicknesses up to 2 cm and large effective areas of roughly 5–10 cm2, are needed to fabricate efficient detectors that meet the working requirements of federal agencies, such as the DOE/NNSA (Department Energy National Nuclear Security Administration), Department of Homeland Security (DHS), and the Department of Defense (DOD). However, because of the imperfect methods for growing crystals, the resulting large-volume crystals most often are not perfect single ones, and contain structural defects such as voids, pipes, impurities from source materials, tellurium inclusions and precipitates, vacancies, and vacancy-impurity complexes generated during the process of their production. Other extended defects that may be present include grain boundaries, micro twins, and walls of dislocations (sub-grain boundaries). Identifying these defects, controlling their occurrence and eliminating them from the bulk CZT material currently are important tasks that will improve the yield of detector-grade crystals from ingots, and ultimately better their performance. In this study, we used a post-growth thermal annealing technique to remove the performance-limiting defects caused by tellurium inclusions and associated impurities in the CZT crystals. We realized a 66% ± 16% reduction in the size of the inclusions, with an overall elimination of 17% ± 2% of them. We believe that our experimental results offer a better understanding of the optimal annealing parameters, and of the dynamic properties of post-growth annealing processes.

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