Jump to main content
Jump to site search

Issue 90, 2015
Previous Article Next Article

Intrinsic [VO4]3− emission of cesium vanadate Cs5V3O10

Author affiliations

Abstract

Polycrystalline Cs5V3O10 micro-particles were synthesized by a solid-state reaction. The vanadate shows intrinsic self-activated luminescence of a single broad band with a peak at 520 nm, extending from about 400 nm to 720 nm. This asymmetric band is composed of two bands due to the electronic transitions from the 3T1 and 3T2 excited states to the 1A1 ground state in [VO4]3− centers. The same emission band was obtained for micro- and nanoparticles. It is suggested that the broadening of the emission band arises from single [VO4]3− molecules. The emission and decay curve profiles indicate that the emission is not due to different kinds of [VO4]3− centers but only one kind of [VO4]3− center. When the temperature is increased from 10 K to 450 K, the emission intensity increases below 150 K and decreases above 150 K, and an unusual blue shift is observed. The observed temperature dependence can be understood by the relaxation processes of the emitting 3T1 and 3T2 states including the thermal feeding by the lower-energy 3T1 state to the higher-energy 3T2 state.

Graphical abstract: Intrinsic [VO4]3− emission of cesium vanadate Cs5V3O10

Back to tab navigation

Article information


Submitted
19 Jun 2015
Accepted
18 Aug 2015
First published
19 Aug 2015

RSC Adv., 2015,5, 73467-73473
Article type
Paper
Author version available

Intrinsic [VO4]3− emission of cesium vanadate Cs5V3O10

Y. Pu, Y. Huang, T. Tsuboi, H. Cheng and H. J. Seo, RSC Adv., 2015, 5, 73467
DOI: 10.1039/C5RA11823A

Social activity

Search articles by author

Spotlight

Advertisements