Fabrication and photophysical studies of CdTe quantum-dots dispersed in SiO2 sonogel optical-glasses

dc.contributoren-US
dc.creatorMorales-Saavedra, Omar G.
dc.creatorGutiérrez-Lazos, Claudio D.
dc.creatorOrtega-López, Mauricio
dc.creatorRodriguez-Rosales, Antonio A.
dc.date2016-04-29
dc.date.accessioned2018-03-16T16:12:52Z
dc.date.available2018-03-16T16:12:52Z
dc.identifierhttp://ojs.unam.mx/index.php/jart/article/view/55199
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1206149
dc.descriptionThe 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. All Rights Reserved © 2015 Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico. This is an open access item distributed under the Creative Commons CC License BY-NC-ND 4.0en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherCentro de Ciencias Aplicadas y Desarrollo Tecnológicoen-US
dc.relationhttp://ojs.unam.mx/index.php/jart/article/view/55199/48984
dc.rights##submission.copyrightStatement##es-ES
dc.sourceJournal of Applied Research and Technology; Vol 13, No 6es-ES
dc.sourceJournal of Applied Research and Technology; Vol 13, No 6en-US
dc.source1665-6423
dc.subject: Cadmium telluride; Quantum dot; Spectroscopy; Nonlinear optics; Hybrid material; Sol–gelen-US
dc.titleFabrication and photophysical studies of CdTe quantum-dots dispersed in SiO2 sonogel optical-glassesen-US
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistases-ES


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