A study on the luminescence properties of CaAl2B2O7:Eu2+ phosphor
Creators
- 1. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Material Science, No. 5 MinYuan Road, South-Central University for Nationalities, Wuhan 430074, Hubei (China)
Description
The blue-emitting CaAl2B2O7:Eu2+ phosphor was prepared at 800 oC by a modified solid-state reaction. The results of X-ray powder diffraction (XRD) analysis confirmed the formation of CaAl2B2O7:Eu2+. Photoluminescence (PL) spectroscopy showed that the phosphor could be excited efficiently by UV-vis light from 250 to 410 nm, and exhibit blue emission (460 nm). The emission intensity of CaAl2B2O7:Eu2+ phosphor varies with the increase of Eu2+concentration. The mechanism of resonance-type energy transfer from Eu2+ to Eu2+ was established to be electric multipole-multipole interaction. TEM images showed that the grain size of CaAl2B2O7:Eu2+ is about 45 nm, which is in full agreement with the theoretical calculation data from the XRD patterns. -- Research highlights: A novel phosphor CaAl2B2O7:Eu2+ was synthesized by a modified solid-state reaction. → Glycine can play the role of dispersant and reduce the synthesis temperature. → The mechanism of energy transfer was investigated in CaAl2B2O7:Eu2+ phosphors.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physb.2010.12.046Additional details
Identifiers
- DOI
- 10.1016/j.physb.2010.12.046;
- PII
- S0921-4526(10)01224-X;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 406
- Journal Issue
- 4
- Journal Page Range
- p. 996-999
- ISSN
- 0921-4526
- CODEN
- PHYBE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42075661
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ALUMINIUM COMPOUNDS; BORATES; CALCIUM COMPOUNDS; ENERGY TRANSFER; EUROPIUM ADDITIONS; GLYCINE; GRAIN SIZE; INTERACTIONS; PHOSPHORS; PHOTOLUMINESCENCE; SOLIDS; SPECTROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; VISIBLE RADIATION; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; AMINO ACIDS; BORON COMPOUNDS; CARBOXYLIC ACIDS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; EMISSION; EUROPIUM ALLOYS; LUMINESCENCE; MICROSCOPY; MICROSTRUCTURE; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHOTON EMISSION; RADIATIONS; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; SCATTERING; SIZE
Optional Information
- Copyright
- Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.