Thermal and optical characterization of ZnxCd1-xS embedded in a zeolite host

被引:15
作者
Hernández-Guevara, A
Cruz-Orea, A
Vigil, O
Villavicencio, H
Sánchez-Sinencio, F
机构
[1] Departamento de Física, CINVESTAV-IPN. A. P. 14-740, D.F., Mexico City
[2] Escla. Sup. de Fis. Y Matemat., IPN. U. Profesional Adolfo Lopez M., Mexico City
[3] Inst. Sup. Pedagogico E.J. Varona, La Havana
关键词
zeolite mordenite; photoacoustic spectroscopy; thermal diffusivity; thermal effusivity; band gap; ternary compounds;
D O I
10.1016/S0167-577X(00)00054-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ternary compounds ZnxCd1-xS (0 less than or equal to X less than or equal to 1) embedded in mordenite zeolite host are studied by using Photoacoustic techniques and X-ray diffraction. We found the thermal diffusivity, thermal effusivity and band-gap as a function of the X parameter. This study shows a strong dependence of thermal and optical parameters with the X value (Zn% concentration). At low X values, we found a peak in the thermal parameters. From Photoacoustic Spectroscopy (PAS), we observed a parabolic behavior of the band gap as a function of X. The X ray diffraction patterns shows that sintered mordenite host structure was maintained with the growth of the ternary compound, however the intensity of the peaks were sensitive to the X value of these compounds. Electron Diffraction Scattering (EDS) measurements were used to determine the X value of our samples. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:330 / 335
页数:6
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