Nano Archive

Visible up-conversion photoluminescence from IR diode-pumped SiO2-TiO2 nano-composite films heavily doped with Er3+-Yb3+ and Nd3+-Yb3+

Battisha, I. K. (2007) Visible up-conversion photoluminescence from IR diode-pumped SiO2-TiO2 nano-composite films heavily doped with Er3+-Yb3+ and Nd3+-Yb3+. Journal of Non-Crystalline Solids, 353 (18-21). 1748 - 1754.

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Official URL: http://www.sciencedirect.com/science/article/B6TXM...

Abstract

Efficient infrared-to-visible conversion is reported in thin film nano-composites, with composition 90% SiO2–10% TiO2, fabricated by a spin-coating sol–gel route and co-doped with Er3+ Yb3+ and with Nd3+:Yb3+ ions. The conversion process is observed under 808 nm laser diode excitation and results in the generation of green (526 and 550 nm) and red (650 nm) emissions: from the former, and blue (478 nm) and green (513 and 580 nm) emissions from the latter. The main mechanism that allows for up-conversion is ascribed to energy transfer among Er3+ and Yb3+ ions in their excited states. Up-conversion efficiency for red emission predominates in samples doped with Er3+:Yb3. The results illustrate the large potential of this class of materials for photonic applications in optoelectronics devices.

Item Type:Article
Additional Information:Structure of Non-Crystalline Materials 10 - Proceedings of the 10th International Conference on the Structure of Non-Crystalline Materials, 10th International Conference on the Structure of Non-Crystalline Materials
Uncontrolled Keywords:X-ray diffraction
Subjects:Material Science > Nanostructured materials
Physical Science > Photonics
ID Code:4013
Deposited By:SPI
Deposited On:27 Mar 2009 09:44
Last Modified:27 Mar 2009 09:44

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