✦ LIBER ✦

Synthesis and photoluminescence of Eu-doped ZnO microrods prepared by hydrothermal method

✍ Scribed by Meili Wang; Changgang Huang; Zhi Huang; Wang Guo; Jiquan Huang; Hong He; Hai Wang; Yongge Cao; Quanlin Liu; Jingkui Liang

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 344 KB
Volume: 31
Category: Article
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2009.02.009

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✦ Synopsis

Eu-doped ZnO microrods, with wurtzite structure and [0 0 0 1] growth direction have been successfully synthesized on Si (1 0 0) substrates by a simple hydrothermal method. The samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), lifetime decay curves, photoluminescence (PL) and photoluminescence excitation (PLE) spectra, respectively. These results indicate that Eu 3+ ions are located in the distorted lattice sites near the surface of the ZnO microrods. Additionally, it is also suggested that the surface defects may act as a step in the process of energy transfer from ZnO to Eu 3+ ions.

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