Optical and Electrical Properties of ZnSe:Cu Ceramics |
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| Authors: | V V Bulatetskii G E Davydyuk V S Manzhara O I Proskura |
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| Affiliation: | (1) Lesya Ukrainka State University, pr. Voli 13, Lutsk, Volhynia, 263025, Ukraine;(2) Institute of Physics, National Academy of Sciences of Ukraine, pr. Nauki 144, Kiev, 252650, Ukraine |
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| Abstract: | ZnSe:Cu ceramics were prepared by hot-pressing powder mixtures of ZnSe and Cu at 900–1200°C under a pressure of 30 MPa. The luminescence spectra of the ceramics were found to be dominated by a green emission centered at 540 nm, whose intensity can be controlled by varying the Cu concentration and hot-pressing temperature. The nature of the green-emission centers is discussed. The electrical properties of the ZnSe:Cu ceramics studied can be understood in terms of percolation theory. |
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