Nanotechnology Conference and Trade Show - Nanotech 2006
> Program > Technical Conferences > Business & Development > Nano Impact Workshop > Nanotech Job Fair > Expo
Program
Sessions
Sunday
Monday
Tuesday
Wednesday
Thursday
Index of Authors
Index of Keywords
Confirmed Speakers
Conferences & Symposia

Conference Proceedings

Conference Technical Proceedings

YAG:Ce3+ Nanophosphor Synthesized with Salted Sol-Gel Method

D. Jia, C.V. Shaffer, J.E. Weyant, A. Goonewardene, X. Guo, Y. Wang, X.Z. Guo, K.K. Li, Y.K. Zou and W. Jia
Boston Applied Technologies, Inc., US

Keywords:
salted sol-gel, nanophosphor, YAG:Ce

Abstract:
Nanophosphors of Y3Al5O12:Ce3+ (YAG:Ce) were synthesized with a salted sol-gel (SSG) method, in which water-Heptane solutions of certain inorganic salts were used along with traditional metal alkoxides precursors. YAG phase could be formed at a temperature below 800ºC. Nanoparticles of YAG heat-treated at 900ºC for 10 hours were obtained. The size of the nanoparticles varied from 30 nm to 120 nm. There was no significant size growth at higher temperature heat treatment. X-ray diffraction spectrum of samples sintered at different temperatures was measured. It was found that the intensities of x-ray diffraction peaks reached a maximum value when sintered at about 1350ºC. Compared with the corresponding temperatures of 1500ºC and >1600ºC for those fabricated via solid-state reactions with and without a flux, BaF2, the sintering temperature was much reduced for this method. Concentration and temperature dependence of the luminescence intensity were measured. Compared with the samples prepared by solid-state reactions, no obvious differences were observed, indicating that no additional quenching mechanisms, such as surface quenching, were introduced into the nanostructured YAG:Ce. Furthermore, the luminescence intensity was found at least 20% higher than those of materials synthesized via direct solid-state reactions due to the better crystallinity obtained by the SSG method.

Back to Program

Sessions Sunday Monday Tuesday Wednesday Thursday Authors

Nanotech 2006 Conference Program Abstract

 
Nanotechnology Conference | Terms of use | Privacy policy | Contact | NSTI Home
Program | Technical Conferences | Business & Development | Nano Impact Workshop | Nanotech Job Fair | Expo |
Nanotech 2006 Home | Press Room | Venue | Subscribe | Site Map
Names, and logos of other organizations are the property of those organizations and not of NSTI.
This event is not open to the general public and NSTI reserves the right to refuse admission and participation to any individual.