Seminar: “Luminescent and Electronic Properties of Some Nanomaterials for Photonics Applications”, Elder De la Rosa
Thursday, December 1, 2011 / 10:30-11:30am
Elder De la Rosa
Photonics Department, Nanophotonics and Advanced Materials Group
Centro de Investigaciones en Optica, León, México
Optical and electronics properties of nanocrystals can be tuned by controlling the size and composition, and in some cases the assembly of nanoparticles. Luminescent properties can also be obtained, both in nanosize and in bulk, by doping with lanthanides. Such properties can be used in the design of photonics devices for different application. Here in this talk we will present resent results about down- and up-conversion luminescent properties of oxide and semiconductor nanocrystals for solid state lighting, tunnability was also demonstrated and open the possibilities to be used for biolabeling. Nanocrystals were covered with a silica shell and functionalized to improve selectivity for biomedical applications. It is also discussed the use of quantum dots and oxide nanocrystals in solar cells, and metallic nanoparticles for biomedical applications. Visible and near infrared emission was obtained with lanthanide doped soft glasses based on P2O5 and TeO2 and the feasibility for laser emission is discussed.
Dr. De la Rosa Cruz received a Doctor in Science (Optics) from the Centro de Investigaciones en Optica in 1998. His research focusses on the linear and non-linear optical properties of nanomaterials including oxide, semiconductor, and metallic nanoparticles for photonics applications. His interests also include ceramic crystals for laser devices, displays, solid-state lighting, solar cells, biosensors and biomedical applications as well as soft glasses activated with lanthanides and nanocrystals for fiber lasers and amplifiers.
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Dr. Axel Schulzgen