| Revista: | Journal of applied research and technology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000395703 |
| ISSN: | 1665-6423 |
| Autors: | Morales Saavedra, Omar G1 Gutiérrez Lazos, Claudio D2 Ortega López, Mauricio3 Rodríguez Rosales, Antonio A1 |
| Institucions: | 1Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, México, Distrito Federal. México 2Universidad Autónoma de Nuevo León, Facultad de Ciencias Físico-Matemáticas, San Nicolás de los Garza, Nuevo León. México 3Instituto Politécnico Nacional, Centro de Investigación y de Estudios Avanzados, México, Distrito Federal. México |
| Any: | 2015 |
| Període: | Dic |
| Volum: | 13 |
| Número: | 6 |
| Paginació: | 566-575 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Aplicado, descriptivo |
| Resumen en inglés | The catalyst-free sonogel route has been implemented to fabricate highly pure SiO2 glasses as host materials for CdTe quantum dot nanocrystals synthesized in aqueous solution. Developed CdTe-based inorganic-inorganic hybrid composites exhibited rigid bulk structures with controllable geometrical shapes and dopant concentrations, allowing the control of the optical properties in the solid-state confinement. Comprehensive linear and nonlinear photophysical characterizations were performed according to UV-vis absorbance, Raman and photoluminescent spectroscopies; the linear refractive indices of highly/lowly CdTe-doped samples were also estimated according to the Brewster angle technique. Since the hybrid glasses are amorphous in nature, the cubic nonlinear optical activity of these composites has been tested via the Z-Scan technique. Results show that the CdTe quantum dots were homogeneously embedded within the SiO2-sonogel matrix with only small guest-host molecular interactions and preserving their strong photoluminescent properties; thus providing advanced solid-state heterostructured nanocomposite materials suitable for current technological photonic applications |
| Disciplines | Ingeniería, Física y astronomía |
| Paraules clau: | Ingeniería de materiales, Optica, Materiales híbridos, Sol-gel, Optica no lineal, Puntos cuánticos, Teluro de cadmio |
| Keyword: | Engineering, Physics and astronomy, Materials engineering, Optics, Hybrid materials, Sol-gel, Nonlinear optics, Quantum dots, Cadmium telluride |
| Text complet: | Texto completo (Ver HTML) |
