Magnetic and optical properties of monosized Eu-doped ZnO nanocrystals from nanoemulsion

Hayoung Yoon; Jun Hua Wu; Ji Hyun Min; Ji Sung Lee; Jae Seon Ju; Young Keun Kim

doi:10.1063/1.3676422

Magnetic and optical properties of monosized Eu-doped ZnO nanocrystals from nanoemulsion

Hayoung Yoon, Jun Hua Wu, Ji Hyun Min, Ji Sung Lee, Jae Seon Ju, Young Keun Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

We report the synthesis and characterization of monosized Eu-doped ZnO nanocrystals via a nanoemulsion process as a function of the doping ratio. The structure, optical, and magnetic properties of the nanocrystals are investigated by XRD, TEM, PL spectrometry, and physical property measurement system. The nanocrystals as prepared show high crystallinity and tight particle size distributions with the diameters of ∼ 10 nm. The doped samples clearly exhibit the ⁵D ₀→ ⁷F _J transition emission due to the presence of the Eu ³⁺ ions. Meanwhile, the magnetic responses demonstrate the temperature dependence and change with dopant concentration.

Original language	English
Article number	07B523
Journal	Journal of Applied Physics
Volume	111
Issue number	7
DOIs	https://doi.org/10.1063/1.3676422
Publication status	Published - 2012 Apr 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "We report the synthesis and characterization of monosized Eu-doped ZnO nanocrystals via a nanoemulsion process as a function of the doping ratio. The structure, optical, and magnetic properties of the nanocrystals are investigated by XRD, TEM, PL spectrometry, and physical property measurement system. The nanocrystals as prepared show high crystallinity and tight particle size distributions with the diameters of ∼ 10 nm. The doped samples clearly exhibit the 5D 0→ 7F J transition emission due to the presence of the Eu 3+ ions. Meanwhile, the magnetic responses demonstrate the temperature dependence and change with dopant concentration.",

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AU - Yoon, Hayoung

AU - Hua Wu, Jun

AU - Hyun Min, Ji

AU - Sung Lee, Ji

AU - Ju, Jae Seon

AU - Keun Kim, Young

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AB - We report the synthesis and characterization of monosized Eu-doped ZnO nanocrystals via a nanoemulsion process as a function of the doping ratio. The structure, optical, and magnetic properties of the nanocrystals are investigated by XRD, TEM, PL spectrometry, and physical property measurement system. The nanocrystals as prepared show high crystallinity and tight particle size distributions with the diameters of ∼ 10 nm. The doped samples clearly exhibit the 5D 0→ 7F J transition emission due to the presence of the Eu 3+ ions. Meanwhile, the magnetic responses demonstrate the temperature dependence and change with dopant concentration.

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