Red, green, blue and white light upconversion emission in Yb3+/Tm3+/Ho3+ co-doped tellurite glasses

    Authors

    H. Desirena; E. De la Rosa; P. Salas;O. Meza

    Comments

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    Abbreviated Journal Title

    J. Phys. D-Appl. Phys.

    Keywords

    ENERGY-TRANSFER; LUMINESCENCE; IONS; FIBER; ER3+; LANTHANIDE; EXCITATION; POWER; Physics, Applied

    Abstract

    Several Yb3+/Tm3+/Ho3+ co-doped transparent TeO2-ZnO-Na2O-Yb2O3-Ho2O3-Tm2O3 glasses were prepared and luminescence properties were characterized. Simultaneous red, green and blue (RGB) emission were obtained after excitation at 970 nm. Colour emission was tuned from multicolour to white light with colour coordinate (0.32, 0.33) matching very well with the white reference (0.33, 0.33). Changes in colour emission were obtained by varying the intensity ratios between RGB bands that are strongly concentration dependent because of the interaction of co-dopants. The colour tunability, high quality of white light and high intensity of the emitted signal make these transparent glasses excellent candidates for applications in solid-state lighting.

    Journal Title

    Journal of Physics D-Applied Physics

    Volume

    44

    Issue/Number

    45

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    4

    WOS Identifier

    WOS:000296747300017

    ISSN

    0022-3727

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