Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1812683 | Physica B: Condensed Matter | 2010 | 4 Pages |
Abstract
Ternary systems of Cd1âxMnxTe were synthesized by the direct fusion technique. Thin films of these compounds were prepared by an electron beam gun under a vacuum of 10â5Â Torr. Structural properties of these compounds in thin film forms were investigated by X-ray diffraction. It was found that these materials crystallize in the zinc-blende form. The optical constants (absorption coefficient and band gap) of the thin films were determined by measuring their reflectance and transmittance in the wavelength region from 500 to 2500Â nm. Analysis of the optical absorption spectra revealed the existence of one direct energy gap. The energy gap increases as the Mn concentration increases and with decreasing annealing temperatures. The electrical conductivity Ï was measured at room temperature and was found to decrease with increasing Mn content.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
S.A. Gad, M. Boshta, A.M. Abo El-Soud, Y.A. El-Gendy,