Synthesis, characterization and luminescence properties of SrLa2(MoO4)4:Eu phosphors
writer：Li, NX (Li, Naixu)[ 1 ] ; Zhou, BY (Zhou, Bingyao)[ 1 ] ; Zhou, JC (Zhou, Jiancheng)[ 1 ] ; Sun, YM
keywords：Red phosphors; Scheelite structure; Sol-gel combustion method; Photoluminescence
source：期刊
specific source：JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
Issue time：2013年
SrLa2(MoO4)(4) (SLM) phosphors doped with Eu3+ ions were prepared by a sol-gel combustion method using citric acid as a fuel/reductant and nitrates as oxidants. The crystallization processes were tracked by means of X-ray diffraction and thermo-gravimetric analysis and differential scanning calorimetry. The size and shape of the products were characterized using a scanning electron microscope, while the luminescent spectra of these resulting phosphors were recorded using a photoluminescence (PL) spectrophotometer. PL studies reveal that the emission intensity of SLM:Eu phosphors was strongly related to sinteringtemperature as well as the doping concentration of Eu3+ ions. The present phosphor has a strong excitation at 395 and 459 nm, indicating that it could serve as a promising red-emitting candidate for near-UV and GaN-based blue light-emitting diode chips.