Evolution of Luminescence from Doped Gallium Phosphide over 40 Years

    Authors

    S. Pyshkin; J. Ballato; M. Bass;G. Turri

    Abbreviated Journal Title

    J. Electron. Mater.

    Keywords

    Luminescence; GaP; spectroscopy; ordering; excitons; optoelectronics; Engineering, Electrical & Electronic; Materials Science, ; Multidisciplinary; Physics, Applied

    Abstract

    The results of luminescence studies conducted on the same samples of GaP over a 40-year period are discussed. The results strongly imply that periodic ordering of impurities improved the overall optical and mechanical properties of the material over time. Forty years after preparation, "hot" luminescence spectra in gallium phosphide (GaP) are similar to those for nanocrystals. The aged pure and N-doped crystals exhibit stimulated emission at 300 K. The aged GaP:N:Sm at room temperature generates bright green or yellow and red tunable luminescence. These results correlate with Raman light scattering and microhardness data obtained from the same crystals.

    Journal Title

    Journal of Electronic Materials

    Volume

    38

    Issue/Number

    5

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    640

    Last Page

    646

    WOS Identifier

    WOS:000264176300003

    ISSN

    0361-5235

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