The effect of particle morphology and crystallite size on the upconversion luminescence properties of erbium and ytterbium co-doped yttrium oxide phosphors

Article Abstract:

Blue, blue-green and green-yellow upconversion from phospher particles of submicrometer dimensions consisting of Er(super 3+), Yb(super 3+) co-doped Y2O3 under red laser excitation is investigated. Results suggest crystallization in the cubic phase and all exhibited blue, blue-green and green-yellow upconversion emission when excited with laser light of wavelength equal to 632.8nm.

Ytterbium & Compounds, Electric properties, Crystallization, Erbium, Ytterbium

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Yttrium oxide upconverting phosphors. Part 2: temperature dependent upconversion luminescence properties of erbium in yttrium oxide

Article Abstract:

The effect of particle morphology and crystallite size on the upconversion luminescence properties of erbium and ytterbium codoped yttrium oxide phosphors are presented. The temperature dependence of all the other transitions in the range 405 to 895 nm for cubic Y2O3:Er(super 3+), as seen using 632.8 nm laser excitation for efficient upconversion, is reported.

Yttrium & Compounds, Observations, Thermal properties, Yttrium compounds

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Yttrium oxide upconverting phosphors. 3. upconversion luminescent emission from europium-doped yttrium oxide under 632.8 nm light excitation

Article Abstract:

Anti-Stokes and Stokes emissions are observed from Y2O2:Eu(super 3+) under 632.8 nm excitation. The emission features exhibited a marked thermal dependence, and the upconversion anti-Stokes emission bands are observed at wavelengths shorter than 580 nm.

Yttrium, Chemical properties

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