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Proceedings Paper

Syntonized white up-converted emission by Tm3+-Yb3+-Er3+-Ho3+ doped ZrO2 nanocrystals
Author(s): D. Solís; T. López-Luke; E. De La Rosa; O. Meza; S. Anderson
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Paper Abstract

Although the general properties of the rare earths' electronic states and transitions are well understood, much less is known regarding the relationships between them and the electronic band states of a crystal lattice. These interactions can enhance or inhibit performance and provide mechanisms for manipulating the material's optical properties. Up-conversion ZrO2:Tm3+, Yb3+, Er3+, Ho3+ nano-crystalline samples were synthesized by sol-gel method and emission properties were analyzed as function of different concentrations of rare earth ions. The samples were pumped at 970 nm with a semiconductor laser source. The introduction of different ion concentrations affects the shape and peak intensities of the measured blue, green and red bands. Results showed in this work tend to demonstrate a feasible control of the chromaticity coordinates of emission and present an approximation to the equipotential white chromaticity coordinates.

Paper Details

Date Published: 12 February 2010
PDF: 9 pages
Proc. SPIE 7617, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIV, 76171Q (12 February 2010); doi: 10.1117/12.843032
Show Author Affiliations
D. Solís, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
T. López-Luke, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
E. De La Rosa, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
O. Meza, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
S. Anderson, Ctr. de Investigaciones en Óptica, A.C. (Mexico)


Published in SPIE Proceedings Vol. 7617:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIV
Klaus P. Streubel; Heonsu Jeon; Li-Wei Tu; Norbert Linder, Editor(s)

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