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A study of the optical absorption in CdTe by photoacoustic spectroscopy

✍ Scribed by O. Vigil-Galán; E. Marín; J-Sastré Hernández; E. Saucedo; C. M. Ruiz; G. Contreras-Puente; A. Calderón


Publisher
Springer
Year
2007
Tongue
English
Weight
306 KB
Volume
42
Category
Article
ISSN
0022-2461

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Optical absorption spectra of n-type CuInSez single crystals were evaluated by means of photoacoustic spectroscopy in the photon energy range from 0.94 to 1.02 eV. At photon energies below 0.99 eV the spectra exhibit exponential tails that are ascribed to the presence of shallow impurity states. At