Syntonized white up-converted emission by Tm3+-Yb3+-Er3+-Ho3+ doped ZrO2 nanocrystals

D. Solís; T. López-Luke; E. De La Rosa; O. Meza; S. Anderson

doi:10.1117/12.843032

11 February 2010 Syntonized white up-converted emission by Tm³⁺-Yb³⁺-Er³⁺-Ho³⁺ doped ZrO₂ nanocrystals

D. Solís, T. López-Luke, E. De La Rosa, O. Meza, S. Anderson

Proceedings Volume 7617, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIV; 76171Q (2010) https://doi.org/10.1117/12.843032
Event: SPIE OPTO, 2010, San Francisco, California, United States

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.

Citation Download Citation

D. Solís, T. López-Luke, E. De La Rosa, O. Meza, and S. Anderson "Syntonized white up-converted emission by Tm³⁺-Yb³⁺-Er³⁺-Ho³⁺ doped ZrO₂ nanocrystals", Proc. SPIE 7617, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIV, 76171Q (11 February 2010); https://doi.org/10.1117/12.843032

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KEYWORDS

Ions

Erbium

Thulium

Holmium

Ytterbium

Zirconium dioxide

CIE 1931 color space

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