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Title: Growth of CdMnTe free of large Te inclusions using the vertical Bridgman technique

Journal Article · · Journal of Crystal Growth
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  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Alabama A&M Univ., Normal, AL (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); North Carolina State Univ., Raleigh, NC (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); Savannah River National Lab., Aiken, SC (United States)

Here, we grew Cd1-xMnxTe crystals with a nominal composition of 5% Mn and 95% Cd using the vertical Bridgman technique. We were able to grow crystals from as-received starting material that were free of secondary phases, such as Te inclusions with a size > 1-µm diameter, without adding compensating Cd to the initial charge. The Te precipitations (size < 1-µm diameter) were found to segregate towards the last-to-freeze section of the ingot. Te inclusions with a size 5-7 µm were observed at the grain boundary located near the last-to-freeze section, while the bottom and middle parts of the ingot showed no Te inclusions, even at the grain boundaries. X-ray topographic analysis was used to characterize the distribution of thermal stress in the ingot.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Nonproliferation and Verification Research and Development (NA-22); USDOE
Grant/Contract Number:
AC09-08SR22470; SC0012704
OSTI ID:
1490311
Alternate ID(s):
OSTI ID: 1489339; OSTI ID: 1635972
Report Number(s):
SRNL-STI-2018-00717; BNL-210837-2019-JAAM; PII: S0022024818306389
Journal Information:
Journal of Crystal Growth, Vol. 509, Issue C; ISSN 0022-0248
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

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Cited By (1)

Novel Electrodes and Engineered Interfaces for Halide-Semiconductor Radiation Detectors journal July 2019

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