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

Roy, Utpal N.; Camarda, G. S.; Cui, Y.; Gul, R.; Hossain, A.; Yang, G.; Okobiah, O. K.; Egarievwe, S. U.; James, R. B.

doi:10.1016/j.jcrysgro.2018.12.026

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

Journal Article · Mon Dec 24 00:00:00 EST 2018 · Journal of Crystal Growth

DOI:https://doi.org/10.1016/j.jcrysgro.2018.12.026· OSTI ID:1489339

Roy, Utpal N. ^[1]; Camarda, G. S. ^[1]; Cui, Y. ^[1]; Gul, R. ^[2]; Hossain, A. ^[1]; Yang, G. ^[3]; Okobiah, O. K. ^[2]; ^[2]; James, R. B. ^[4]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Alabama A&M Univ., Normal, AL (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); North Carolina State Univ., Raleigh, NC (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Savannah River National Lab., Aiken, SC (United States)

Here, we grew Cd_1-xMn_xTe 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.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Savannah River Site (SRS), Aiken, SC (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA), Office of Nonproliferation and Verification Research and Development (NA-22)

Grant/Contract Number:: AC09-08SR22470; SC0012704

OSTI ID:: 1489339

Alternate ID(s):: OSTI ID: 1635972
OSTI ID: 1490311

Report Number(s):: BNL--210837-2019-JAAM; SRNL-STI--2018-00717

Journal Information:: Journal of Crystal Growth, Journal Name: Journal of Crystal Growth Vol. 509; ISSN 0022-0248

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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