Synthesis of Quantum-Size Cadmium-Zinc Sulfide Particle-Doped Glasses by the Sol-Gel Method |
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| Authors: | E. Cordoncillo J.B. Carda M.A. Tena G. Monrós P. Escribano |
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| Affiliation: | (1) Departmento de Química Inorgánica y Orgánica, Universitat Jaume I, Ap. Correos 224, 12080 Castelló, Spain |
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| Abstract: | The optical properties of extremely small particles of semiconductor materials provide a sensitive probe of the band structure in the materials. The Sol-Gel process has been applied successfully to the preparation of small particle-size CdS-doped silica glasses such that quantum size effects are significant. Transparent and colorless gels were prepared through the hydrolysis of a complex solution of Si(OC2H5)4, (CH3)2SO, Zn(CH3COO)2·2H2O and Cd(CH3COO)2·2H2O. These gels were heated at 350, 500 and 750°C. The thermal treatments of samples were established by TDA/TGA analysis. By means of shift in optical absorption spectra, quantum size effects could be inferred in glasses containing these calcogenide microcrystals. |
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| Keywords: | quantum size materials optical materials CdS doped silica glasses |
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