Interpretation of the "S-shaped" temperature dependence of luminescent peaks from semiconductors

Details Interpretation of the "S-shaped" temperature dependence of luminescent peaks from semiconductors Interpretation of the "S-shaped" temperature dependence of luminescent peaks from semiconductors

2005-02-12

arxiv.org/abs/cond-mat/0502311v1

Physics

Condensed Matter

Materials Science

11 pages, 3 figures and 1 table

Scientific paper

10.1088/0953-8984/17/30/011

The ``S-shape'' (decrease-increase-decrease) temperature dependence of luminescence peak shift from semiconductors is considered. A luminescence model for localized state ensemble was employed to interpret this anomalous temperature dependence of emission peak. Excellent agreement between the theoretical calculation and the experiments was achieved over the whole studied temperature region. The physical origin of the ``S-shaped'' shift is revealed.

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