Nano Archive

Wide colour gamut generated in triply lanthanide doped sol–gel nano-glass–ceramics

del-Castillo, J. and Méndez-Ramos, J. and Yanes, A. C. and Rodríguez, V. D. (2009) Wide colour gamut generated in triply lanthanide doped sol–gel nano-glass–ceramics. Journal of Nanoparticle Research, 11 (4). pp. 879-884.

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The generation of a wide colour gamut, based on up-conversion of cheap near-infrared photons into the visible range, is of great importance for general lighting appliances and integrated optical devices. Here, we report for the first time on up-conversion luminescence under infrared excitation at 980 nm in Yb3+–Er3+–Tm3+ triply doped sol–gel derived SiO2–LaF3 based nano-glass–ceramics (SOL-YET), containing LaF3 nanocrystals with a size about 13 nm. Efficient simultaneous up-conversion emission of the three primary colours (blue, green and red) gives rise to a balanced white overall emission. The ratio between up-conversion emission bands can be varied by changing pump power intensity resulting in colour tuneable up-conversion phosphor.

Item Type:Article
ID Code:4527
Deposited By:Prof. Alexey Ivanov
Deposited On:08 May 2009 06:21
Last Modified:08 May 2009 09:53

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