Energy bandgap and lattice constant contours of II–VI quaternary alloys
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Abstract
Energy bandgap and lattice constant contours of A1−x Bx C1−y Dy and AB1−x−y Cx Dy II-VI quaternary alloys were calculated by the interpolation method using ternary alloy parameters. Three interpolation methods were applied to A1−x Bx C1−y Dy alloy systems. The maximum energy differences between the three methods, which occur near the center of the composition plane, are 0.14, 0.24, and 0.33 eV for (ZnCd)(SSe), (ZnCd)(SeTe), and (ZnCd)(STe) alloy systems, respectively. The calculated results are compared with two sources of experimental data and were fitted within 0.23 eV for all the three methods. For AB1−x−y Cx Dy alloy systems the calculated results based on two interpolation methods agreed very well within 0.03 eV.
Key words
quaternary alloys bandgap lattice constantPreview
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