Compositional dependence of the optical parameters of GexSb40−xSe60 glasses
作者： V. Pamukchieva , A. Szekeres , E. Savova , E. Vlaikova
DOI: 10.1016/S0022-3093(98)00794-7
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摘要: Abstract The optical bandgap (Eg) and the complex index of refraction (N) in GexSb40−xSe60 glasses are studied by means spectroscopic ellipsometry light wavelength region 400 to 820 nm. values bandgap, Eg, refraction, N, considered as a function average coordination number (Z) covalent bonds per atom. Their compositional dependences show changes vicinity Z=2.67, which we associate with topological phase transition, occurring when predominantly two-dimensional layer structure (2D) three-dimensional (3D) network.
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sci-hub.se 参考文章(17)
Dietmar Linke, Amorphe und glasartige anorganische Festkörper Von A. Feltz; Berlin, Akademie-Verlag, 1983; 460 Seiten mit 195 Bildern und 23 Tabellen; Format 17 cm × 24 cm, Ln. 85,-M Zeitschrift für Chemie. ,vol. 25, pp. 79- 79 ,(2010) , 10.1002/ZFCH.19850250223
Marc Kastner, Bonding Bands, Lone-Pair Bands, and Impurity States in Chalcogenide Semiconductors Physical Review Letters. ,vol. 28, pp. 355- 357 ,(1972) , 10.1103/PHYSREVLETT.28.355
S. H. Wemple, M. DiDomenico, Behavior of the Electronic Dielectric Constant in Covalent and Ionic Materials Physical Review B. ,vol. 3, pp. 1338- 1351 ,(1971) , 10.1103/PHYSREVB.3.1338
A. Srinivasan, K. N. Madhusoodanan, E. S. R. Gopal, J. Philip, Observation of a threshold behavior in the optical band gap and thermal diffusivity of Ge-Sb-Se glasses. Physical Review B. ,vol. 45, pp. 8112- 8115 ,(1992) , 10.1103/PHYSREVB.45.8112
J.C. Phillips, M.F. Thorpe, Constraint theory, vector percolation and glass formation Solid State Communications. ,vol. 53, pp. 699- 702 ,(1985) , 10.1016/0038-1098(85)90381-3
S. H. Wemple, Refractive-Index Behavior of Amorphous Semiconductors and Glasses Physical Review B. ,vol. 7, pp. 3767- 3777 ,(1973) , 10.1103/PHYSREVB.7.3767
Keiji Tanaka, Structural phase transitions in chalcogenide glasses Physical Review B. ,vol. 39, pp. 1270- 1279 ,(1989) , 10.1103/PHYSREVB.39.1270
Milan Vlček, Ladislav Tichý, Jiří Klikorka, Ales Tříska, Optical properties of Ge40-x Sb x Se60 glasses Journal of Materials Science. ,vol. 24, pp. 2508- 2512 ,(1989) , 10.1007/BF01174521
E Savova, V Pamukchieva, Calorimetric measurements on Ge - Sb - S glasses Semiconductor Science and Technology. ,vol. 12, pp. 185- 188 ,(1997) , 10.1088/0268-1242/12/2/006
Keiji Tanaka, Layer structures in chalcogenide glasses Journal of Non-crystalline Solids. ,vol. 103, pp. 149- 150 ,(1988) , 10.1016/0022-3093(88)90428-0