Far-infrared spectroscopy of CdTe1−xSex(In): Phonon properties
Infrared Physics & Technology(2014)
Abstract
•Optical properties were investigated applying far-infrared spectroscopy.•Dielectric function which includes spatial distribution of free carriers were used.•The long wavelength optical phonons exhibit a two-mode behavior.•The local In mode at about 160cm−1 is observed.•Surface layers with a low concentration of free carriers are formed.
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Key words
Semiconductors,Electron–phonon interactions,Light absorption and reflection
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