Preparation and optical properties of the co-doped ZnTe single crystals |
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| Authors: | Yu F Vaksman Yu A Nitsuk V V Pavlov Yu N Purtov A S Nasibov P V Shapkin |
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| Affiliation: | (1) Mechnikov National University, ul. Petra Velikogo 2, Odessa, 270100, Ukraine;(2) Lebedev Institute of Physics, Russian Academy of Sciences, Leninskiĭ pr. 53, Moscow, 117924, Russia |
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| Abstract: | The ZnTe:Co single crystals are obtained by diffusion Co-doping. The spectra of optical density in the range of 2.4–0.38 eV are investigated. It is found that Co-doping of the crystals shifts the absorption edge to the low-energy region. The similarity of optical absorption spectra of the ZnTe:Co and ZnS:Co crystals is established. The observed absorption lines of ZnTe:Co are attributed to the optical transitions of electrons from the level of the ground state 4 A 2(F) of the Co2+ ion to the levels of excited states 4 T 1(P), 4 T 1(F), and 4 T 2(F) split by the spin-orbit interaction. |
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