Novel Method for Growth of Detector-Grade CZT Crystals

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-11ER90076
Agency Tracking Number: 97530
Amount: $998,532.00
Phase: Phase II
Program: SBIR
Awards Year: 2012
Solicitation Year: 2012
Solicitation Topic Code: 51 b
Solicitation Number: DE-FOA-0000676
Small Business Information
6 Huron Drive, Natick, MA, 01760-1325
DUNS: 807651260
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Shariar Motakef
 (508) 653-7100
Business Contact
 Shariar Motakef
Title: Dr.
Phone: (508) 653-7100
Research Institution
CdZnTe remains the material of choice for room temperature semiconductor detection of X- and -ray radiation, but the availability of high performance material is limited and the cost is very high. The goal of this project is to develop a new technology for production of large volumes of CZT single crystals with a high yield of detector-grade CZT crystals. In Phase I we demonstrated the viability of this technology and produced a CZT detector with a lifetime-mobility product value of 10-2cm2/V. The Phase II effort will focus on growth of large diameter crystals of high compositional uniformity, and on engineering of native point defects and second phase precipitates to produce high resistivity, high lifetime-mobility product, and high resolution detectors. The unique capabilities of the growth process under development will be leveraged to achieve these goals. The success of this program promises to result in higher availability and lower cost of large volume detectors needed for homeland security and medical applications.Commercial Applications and Other Benefits: Wide band gap semiconductors such as CdZnte are exceptionally suitable for detection of nuclear radiation. They have applications as inspection tools in homeland security, Positron Emission Tomography (PET) and scinti- mammography in medicine, and nuclear energy monitoring devices

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government