Ultrafast relaxation kinetics of photoinjected plasma in III-nitrides

The ultrafast relaxation kinetics of photoinjected plasmas in blue-emitting highly-polar III-nitrides is analysed. The evolution of the nonequilibrium thermodynamic state of the 'hot carriers' and 'hot phonons' is studied. It is shown that the dissipative phenomena are orders of...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2005-10, Vol.38 (19), p.3584-3589
Main Authors: Rodrigues, Clóves G, Vasconcellos, Áurea R, Luzzi, Roberto
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity phenomena in semiconductors and insulators
Electronic transport in condensed matter
Exact sciences and technology
High-field and nonlinear effects
Physics
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Summary:The ultrafast relaxation kinetics of photoinjected plasmas in blue-emitting highly-polar III-nitrides is analysed. The evolution of the nonequilibrium thermodynamic state of the 'hot carriers' and 'hot phonons' is studied. It is shown that the dissipative phenomena are orders of magnitude larger than in less strongly polar materials, such as GaAs. Moreover, the phenomena of 'phonon bottleneck' and 'hot-phonon temperature overshoot' are characteristically enhanced.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/38/19/007