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Synthesis And Photoluminescence Properties Of Micron-Alumina

Author

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  • SHIHUA ZHAO

    (School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu, Henan province 476000, P. R. China;
    School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China)

  • ZHENG WANG

    (School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu, Henan province 476000, P. R. China)

  • MINGQUAN WANG

    (School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu, Henan province 476000, P. R. China)

  • YUTING CUI

    (School of Physics and Electrical Information, Shangqiu Normal University, Shangqiu, Henan province 476000, P. R. China)

  • QUANLIN LIU

    (School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China)

Abstract

Micron-alumina is expected to be of new properties and applications owing to its different morphology structures, which is prepared by the conventional preparation methods. X-ray diffraction (XRD) patterns present that the micron-alumina has poly-crystalline structure. Scanning electron microscopy (SEM) shows that the micron-alumina looks like a bouquet of flowers and its surface is covered with much micron-strips. Transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) show that the micron-alumina is composed of many particles, which has polycrystalline structure. PL spectra display that emission peak of the micron-alumina centers at 301 nm, which attributes to theF+centers. A schematic drawing for electronic transitions in the excitation and emission processes is proposed.

Suggested Citation

  • Shihua Zhao & Zheng Wang & Mingquan Wang & Yuting Cui & Quanlin Liu, 2014. "Synthesis And Photoluminescence Properties Of Micron-Alumina," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 21(02), pages 1-4.
    • Handle: RePEc:wsi:srlxxx:v:21:y:2014:i:02:n:s0218625x14500310
    DOI: 10.1142/S0218625X14500310
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