| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5402394 | Journal of Luminescence | 2010 | 5 Pages |
Abstract
In an effort to obtain enhanced luminescence under photoexcitation as well as to clarify the underlying correlation between non-radiative sites and a surface modifier in a nanoscale phosphor, YVO4:Eu3+ was synthesized via a polyethylene glycol (PEG)-assisted hydrothermal process. The temperature variable photoluminescence reveals that the overall emission behaviors of PEG-added YVO4:Eu3+ phosphor was similar to those of a post-annealed sample without PEG addition. This polymeric agent induces a rough thin layer onto the YVO4:Eu3+ nanoparticle during synthetic procedure, resulting in the prevention of surface-adsorbed species known as non-radiative sites such as NH4+ as well as hydroxyl groups.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Sungho Choi, Young-Min Moon, Ha-Kyun Jung,