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On the non-linear properties of TlInX2 (X = S, Se, Te) ternary compounds

✍ Scribed by M. Hanias; A. Anagnostopoulos; K. Kambas; J. Spyridelis

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 563 KB
Volume: 160
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(89)90050-1

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✦ Synopsis

Optical and electrical properties of the TIInX, (X = S, Se, Te) were studied. The selenides and tellurides are of chain-like structure while the sulfides are layered. The measurements (I-C/ characteristics and optical absorption) seem to have a direct connection with the main structural features. The I-U-curves of the first two compounds are S-type with characteristic oscillations in the negative differential resistance (NDR) region while the sulfides show an Ohmic behavior. The optical absorption measurements in the temperature range 15-300K for Se-and Te-compounds show a positive temperature coefficient of the gap while for the S-compound it is negative. Possible explanations are mentioned.

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