The affects of doping Eu3+ on structures and morphology of ZrO2 nanocrystals

✍ Scribed by Lixin Yu; Hai Liu; Masayuki Nogami

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 411 KB
• Volume: 32
• Category: Article
• ISSN: 0925-3467
• DOI: 10.1016/j.optmat.2010.03.020

✦ Synopsis

The ZrO 2 and ZrO 2 :Eu 3+ nanocrystals (NCs) were prepared by a hydrothermal method. The samples were sintered at different temperatures (500, 800 and 1100 °C). The results indicate that the Eu 3+ ions affect not only the structures of hosts (ZrO 2 ), but also the morphology of hosts. The shape of ZrO 2 :Eu 3+ NCs heated at 1100 °C is the one-dimensional nanorod, while is the zero-dimensional nanoparticle for pure ZrO 2 samples sintered at the same temperature. The excitation and emission spectra of ZrO 2 :Eu 3+ NCs were studied. In excitation spectra, the charge transfer band of Eu 3+ in ZrO 2 NCs heated at 1100 °C evidently blue-shifts in comparison with the NCs calcined at 500 and 800 °C. The relative intensity of 5 D 0 -7 F 2 transitions of Eu 3+ ions and color chromaticity for nanorods are increased in comparison with the nanoparticles.