Paper Title:
Host Size Effects on Optical Properties of Y2O3:Eu3+ and Gd2O3:Eu3+ Nanoparticles Synthesized by Laser Pyrolysis
  Abstract

Rare earth doped materials have many familiar applications (TV screens, solid lasers, scintillators…) thanks to their efficient and robust luminescence properties. In recent years, growing interest has been focused on the changes in their optical properties with the size of the host particles. In this work, nanomaterials were produced for the first time by using laser pyrolysis. Y, Gd, and Eu nitrates were dissolved in water and used as precursors. Cubic phases of Y2O3:Eu3+ and Gd2O3:Eu3+ were obtained with sizes ranging from 3 to 40 nm. The spectroscopic properties revealed a new and nanostructure-specific broad band in the excitation spectrum. The emission spectrum was found to be characteristic of nanostructured sesquioxides only when excited in this new band, which was finally assumed to be a new charge transfer band for the smallest nanoparticles in the sample.

  Info
Periodical
Solid State Phenomena (Volume 128)
Main Theme
Edited by
Witold Łojkowski and John R. Blizzard, Urszula Narkiewicz and Janusz D. Fidelus
Pages
157-163
DOI
10.4028/www.scientific.net/SSP.128.157
Citation
G. Ledoux, Y. Leconte, D. Amans, C. Dujardin, L. Combemale, N. Herlin-Boime, C. Reynaud, "Host Size Effects on Optical Properties of Y2O3:Eu3+ and Gd2O3:Eu3+ Nanoparticles Synthesized by Laser Pyrolysis", Solid State Phenomena, Vol. 128, pp. 157-163, 2007
Online since
October 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Qiong An, Jian Zhang, Min Liu, Sheng Wu Wang
Abstract:Yb3+ and Ho3+ co-doped Lu2O3 nanocrystalline powders were synthesized by a reversestrike co-precipitation method. The as-prepared powders...
521
Authors: Tomokatsu Hayakawa, Masayuki Nogami
Abstract:By overcoming less excitation efficiency of rare-earth ions due to small oscillator strength (∼10-6) of f-f transition, Eu3+ ions were...
579
Authors: Xu Li, Li Guan, Chong Liu, Feng Cong, Zhi Ping Yang
Abstract:In this study, a novel green phosphor Ca2SrAl2O6:Ce3+,Tb3+ were prepared by solid state method. The crystal structure and particle morphology...
1823
Authors: Ling Zhu, Xue Qiang Cao, Dao Wu Yang
Abstract:Highly uniform and monodisperse comet-likeYF3:Eu3+ nanocrystals has been successfully prepared by a sonochemical method...
54
Authors: Ling He, Wei Min Sun, Yu Tian Ding, Yu Hua Wang
Optical/Electronic/Magnetic Materials
Abstract:A novel phosphor, Gd2MoB2O9:Eu3+ has been synthesized by solid-state reaction and its...
1327