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The Effect of Subbandgap Illumination on the Bulk Resistivity of CdZnTe

Journal Article · · Journal of Electronic Materials
The variation in bulk resistivity during infrared (IR) illumination above 950 nm of state-of-the-art CdZnTe (CZT) crystals grown using the traveling heating method or the modified Bridgman method is documented. The change in steady-state current with and without illumination is also evaluated. The influence of secondary phases (SP) on current-voltage (I-V) characteristics is discussed using IR transmission microscopy to determine the defect concentration within the crystal bulk. SP present within the CZT are connected to the existence of deep, IR-excitable traps within the bandgap.
Research Organization:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC09-08SR22470
OSTI ID:
1097608
Report Number(s):
SRNL-STI-2013-00475
Journal Information:
Journal of Electronic Materials, Journal Name: Journal of Electronic Materials Journal Issue: 11 Vol. 42; ISSN 0361-5235
Publisher:
Springer
Country of Publication:
United States
Language:
English

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