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Visible photoluminescence from chain Tl4In3GaSe8 semiconductor
Date
2006-07-05
Author
Hasanlı, Nızamı
Goksen, K.
Metadata
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The emission band spectra of undoped Tl4In3GaSe8 chain crystals have been studied in the 16-300 K temperature range and the 535-740 nm wavelength range. Two visible photoluminescence bands centred at 589 and 633 nm were observed at T = 16 K. Variations of both bands have been investigated over a wide range of laser excitation intensity ( 3 x 10(-4) -1.2 W cm(-2)). Radiative transitions with energies of 2.10 and 1.96 eV from two upper conduction bands to two shallow acceptor levels (0.03 and 0.01 eV), respectively, were suggested as being responsible for the observed bands in Tl4In3GaSe8 crystal, which is non-transparent in the visible range.
Subject Keywords
General Materials Science
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/41415
Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
DOI
https://doi.org/10.1088/0953-8984/18/26/023
Collections
Department of Physics, Article
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BibTeX
N. Hasanlı and K. Goksen, “Visible photoluminescence from chain Tl4In3GaSe8 semiconductor,”
JOURNAL OF PHYSICS-CONDENSED MATTER
, vol. 18, no. 26, pp. 6057–6064, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41415.