On the origin of 300 K near-band-edge luminescence in CdTe

A careful analysis of 300 K near-band-edge luminescence from bulk CdTe and cadmium telluride films is made. It is shown that: (i) the observed difference in 300 K peak positions of the near-band-edge luminescence hvm in CdTe crystals and films, and (ii) the hvm shift to lower energies as the excitat...

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Published in:Semiconductor Physics Quantum Electronics & Optoelectronics
Date:2003
Main Authors: Glinchuk, K.D., Litovchenko, N.M., Strilchuk, O.N.
Format: Article
Language:English
Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2003
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/118083
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:On the origin of 300 K near-band-edge luminescence in CdTe / K.D. Glinchuk, N.M. Litovchenko, O.N. Strilchuk // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2003. — Т. 6, № 4. — С. 441-443. — Бібліогр.: 14 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:A careful analysis of 300 K near-band-edge luminescence from bulk CdTe and cadmium telluride films is made. It is shown that: (i) the observed difference in 300 K peak positions of the near-band-edge luminescence hvm in CdTe crystals and films, and (ii) the hvm shift to lower energies as the excitation intensity is increased, could not be satisfactory explained by an assumption that free excitons dominate in the formation of the above luminescence. So, the origin of 300 K near-band-edge luminescence in CdTe is not mainly the free exciton one as was proposed earlier, and needs further examination.
ISSN:1560-8034