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Evidence for metastable behavior of Ga-doped CdTe

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Author(s): Ewa Placzek-Popko | Zbigniew Gumienny | Justyna Trzmiel | Jan Szatkowski

Journal: Optica Applicata
ISSN 0078-5466

Volume: 38;
Issue: 3;
Start page: 559;
Date: 2008;
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Keywords: semiconductors | semiconducting compounds | CdTe | DX centers | persistent photoeffects

ABSTRACT
In this paper, we report for the first time on persistent photoeffects in gallium doped CdTe. Persistent photoconductivity and photoinduced persistent absorption were observed at 77 K. Both effects quenched above 120 K. The photoeffects have been attributed to the metastable behavior of gallium in CdTe.

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