Some Physical Properties of CuTlSe Alloy |
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| Authors: | A.Abdel All K.A.Sharaf A.Elshafie |
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| Affiliation: | Physics Department, Faculty of Science, Helwan University, Cairo, Egypt... |
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| Abstract: | The structure and optical properties of Cu0.1Tl2Se3 alloy wasstudied. X-ray analysis showed that the polycrystalline powder consists of a mixture of two phases Cu3TlSe2 (monoclinic) and TlSe (tetragonal). Chalcopyrite phase CuTlSe2 can be obtained by annealing the powder at 250℃ for 1 h. Thin film with a monoclinic phase of Cu3TlSe2 was obtained for the thick film (0.7 μm). The optical parameters α, n, k, e' and e" and the energy gap were calculated. The thermoelectric power measurements showed that S has a positive polarity over the whole range of temperature. |
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