In this section, you can access to the latest technical information related to the FUTURE project topic.

Eu3+?Activated Gd8V2O17: Energy Transfer, Luminescence, and Temperature?Dependence Characteristics

A new phosphor of the type Gd8(1?x)Eu8?xV2O17 (x=0–1.0) was synthesized through the solid?state reaction ceramics method. A pure phase formation was verified by using X?ray powder diffraction measurements. The luminescence of Gd8V2O17:Eu3+ was investigated through optical and laser excitation spectroscopy. The luminescence curves were investigated in the temperature region 10 to 300?K. Gd8V2O17 shows a self?activated luminescence under excitation with UV? and near?UV light. The spectra, the decay lifetimes, and the thermal stability of Gd8(1?x)Eu8?xV2O17 (x=0.005–1.0) strongly depend on both the Eu3+ concentration and the temperature. The tunable luminescence is realized by controlling the Eu3+?doping level to adjust the host energy?transfer efficiency from the VO43? groups to the Eu3+ activators. At low Eu3+ concentrations (30?mol?%) with an increase of the temperature. The luminescence mechanism was discussed on the basis of the charge?transfer band of the Eu3+ ions, the doping concentration, and the proposed microstructures in the lattices.

» Author: Dr. Bin Deng , Dr. Shihua Liu , Dr. Chong?song Zhou , Dr. Hui Liu , Dr. Jun Chen , Dr. Ruijin Yu

» Reference: doi:10.1002/chem.201800889

» Publication Date: 11/07/2018

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es