Affiliation:
1. College of Materials and Chemistry and Chemical Engineering Chengdu University of Technology Chengdu China
2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu China
3. College of Ecology and Environment Chengdu University of Technology Chengdu China
Abstract
AbstractEu3+/Tb3+ co‐doped borophosphate glass was synthesized by a melt‐quenching method for the luminescence color‐tunable performance. Under the excitation of 373 nm, the Tb3+‐doped glass exhibited a very strong green emission at 544 nm, corresponding to the electron transition 5D4→7F5 of Tb3+. The emission intensity and lifetime of 5D4 level of Tb3+ dropped with the increase of Eu3+ co‐doping, whereas the emission intensity and lifetime of Eu3+ at 615 nm increased, confirming the existence of energy transfer from Tb3+ to Eu3+. Additionally, the color‐tunable luminescence of the borophosphate glass was also realized from green region to orange‐red region through shifting the Eu3+/Tb3+ ion concentration and the excitation light. There was little difference in emission intensity of Eu3+/Tb3+ co‐doped borophosphate glass under working temperature between 303 and 483 K, manifesting excellent thermal stability. This study indicated that the Eu3+/Tb3+ co‐doped borophosphate glass could become a promising candidate for the applications of anti‐counterfeiting technology.
Funder
Science and Technology Plan Projects of Tibet Autonomous Region
Subject
Materials Chemistry,Ceramics and Composites