Effect of mechanical milling on photoluminescence of gamma-alumina nanoparticles

    Authors

    J. S. Luo; S. F. Liu; L. D. Wang; Y. Fan; L. G. Zhang; P. P. Zhang;L. N. An

    Comments

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    Abbreviated Journal Title

    J. Nanosci. Nanotechnol.

    Keywords

    mechanical alloying; photoluminescence; alumina; OPTICAL-PROPERTIES; PHASE-TRANSFORMATION; LUMINESCENCE; MEMBRANES; SAPPHIRE; EMISSION; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials; Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter

    Abstract

    The effect of mechanical alloying on the photoluminescence behavior of gamma-Al2O3 nanopowder was studied. Two emission peaks centered at 343 and 378 nm and a broad emission band ranging between 400-600 nm have been observed. It is found that the intensity of the two emission peaks decreases with ball-milling time, while that the broad band remains un-change. These results suggested that the two peaks are resulted from the surface defects that analogs of F+ centers, while the broad band is resulted from impurity.

    Journal Title

    Journal of Nanoscience and Nanotechnology

    Volume

    8

    Issue/Number

    3

    Publication Date

    1-1-2008

    Document Type

    Article

    Language

    English

    First Page

    1414

    Last Page

    1416

    WOS Identifier

    WOS:000254540700061

    ISSN

    1533-4880

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