Nano Archive

Morphology–luminescence correlations in europium-doped ZnO nanomaterials.

Yang, Yuming and Lai, Hua and Xu, Haitao and Tao, Chunyan and Yang, Hua (2009) Morphology–luminescence correlations in europium-doped ZnO nanomaterials. Journal of Nanoparticle Research, 12 (1). pp. 217-225. ISSN 1388-0764

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In order to investigate the correlations of morphologies and optical properties, different morphologies of Eu-doped ZnO were synthesized by different methods. Specifically, the structure of SiO2/ZnO:Eu nanoflower was synthesized for the first time and has not been reported previously. One percent was chosen as the Eu doping concentration. The relations of the morphology, diameter, and uniformity with the PL intensity were examined. The PL intensity of ZOE samples has a close relationship with the morphology. The PL intensity order of the different morphologies of ZnO:Eu is as follows: nanorod arrays > thin film > nanospheres > nanoparticles > nanoflowers > nanorods. The PL intensity of nanomaterials is larger, if the diameter of the nanomaterials is larger. However, the size of diameter is not the most important reason. It was found that the sample uniformity plays a key role on ZnO:Eu PL intensity. ZnO:Eu with small particle diameters may have strong photoluminescence intensity, if the nanoparticles are uniform.

Item Type:Article
Uncontrolled Keywords:Morphology - Photoluminescence - Nanoparticles - Nanospheres - Nanoflowers - Nanorods
Subjects:Material Science > Nanostructured materials
Physical Science > Photonics
ID Code:8128
Deposited By:IoN
Deposited On:26 Feb 2010 16:58
Last Modified:26 Feb 2010 16:59

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