Nano Archive

Enhanced Luminescence of Eu-Doped TiO2 Nanodots

Luo, Ming and Cheng, Kui and Weng, Wenjian and Song, Chenlu and Du, Piyi and Shen, Ge and Xu, Gang and Han, Gaorong (2009) Enhanced Luminescence of Eu-Doped TiO2 Nanodots. Nanoscale Research Letters, 4 (8). pp. 809-813.


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Monodisperse and spherical Eu-doped TiO2 nanodots were prepared on substrate by phase-separation-induced self-assembly. The average diameters of the nanodots can be 50 and 70 nm by changing the preparation condition. The calcined nanodots consist of an amorphous TiO2 matrix with Eu3+ ions highly dispersed in it. The Eu-doped TiO2 nanodots exhibit intense luminescence due to effective energy transfer from amorphous TiO2 matrix to Eu3+ ions. The luminescence intensity is about 12.5 times of that of Eu-doped TiO2 film and the luminescence lifetime can be as long as 960 μs.

Item Type:Article
Uncontrolled Keywords:TiO2 - Eu3+ - Nanodots - Phase-separation-induced self-assembly - Luminescence
Subjects:Material Science > Nanofabrication processes and tools
ID Code:6532
Deposited By:SPI
Deposited On:27 Jul 2009 16:47
Last Modified:27 Jul 2009 16:47

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