Blue emission of Eu{sup 2+} doped LaMgAl{sub 11}O{sub 19} phosphor prepared by combustion synthesis method

Journal Article · Fri May 06 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946299· OSTI ID:22591377

Yadav, P. J.; Talewar, R. A.; Joshi, C. P. ^[1]; Moharil, S. V. ^[2]

---

1. Shri Ramdeobaba College of Engineering, Katol Road, Nagpur 440013 (India)
2. Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440010 (India)

Blue-emitting phosphor LaMgAl{sub 11}O{sub 19}:Eu{sup 2+} has been synthesized successfully at 500 °C by one step combustion synthesis method. The as-synthesized materials were characterized by powder x-ray diffraction (XRD) and photoluminescence (PL) techniques. Upon 365 nm excitation, emission spectra of the LaMgAl{sub 11}O{sub 19}:Eu{sup 2+} phosphors show a blue band at 450 nm. The excitation spectra corresponding to 4f{sup 7}-4f{sup 6}5d transition of Eu{sup 2+} cover the spectral range of 280–430 nm. The concentration quenching of Eu{sup 2+} in the LaMgAl{sub 11}O{sub 19} host was determined to be 3 mol%. The CIE chromaticity of LAM: Eu{sup 2+} phosphors was compared with the commercial BAM.

• OSTI ID: 22591377
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1728; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
ALUMINATES
COMBUSTION
COMPARATIVE EVALUATIONS
CONCENTRATION RATIO
DOPED MATERIALS
EMISSION SPECTRA
EUROPIUM IONS
EXCITATION
LANTHANUM COMPOUNDS
MAGNESIUM COMPOUNDS
PHOSPHORS
PHOTOLUMINESCENCE
POWDERS
SYNTHESIS
TEMPERATURE RANGE 0400-1000 K
X-RAY DIFFRACTION