Synthesis of Red Phosphor (Y2O3 :Eu3+) from Waste Phosphor Sludge by Coprecipitation Process.
نویسندگان
چکیده
منابع مشابه
Luminescent properties of novel red-emitting phosphor: Gd2O2CN2:Eu3+
Eu 3+ -doped Gd2O2CN2 was firstly synthesized by a classical solid-state reaction of Li2CO3, Eu2O3 and GdF3 under NH3 gas flow in the presence of graphite at low firing temperature. Powder X-ray diffraction (XRD) analysis indicated that Gd2O2CN2: Eu 3+ crystallizes in a trigonal-type structure with space group P-3m1. Gd2O2CN2: Eu 3+ shows a sharp red emission band peaking at 626 nm under excita...
متن کاملColor-tunable properties of Eu3+- and Dy3+-codoped Y2O3 phosphor particles
Rare-earth phosphors are commonly used in display panels, security printing, and fluorescent lamps, and have potential applications in lasers and bioimaging. In the present study, Eu3+- and Dy3+-codoped uniform-shaped Y2O3 submicron particles were prepared using the urea homogeneous precipitation method. The structure and morphology of the resulting particles were characterized by X-ray diffrac...
متن کاملThe Preparation and Optical Properties of Novel LiLa(MoO4)2:Sm3+,Eu3+ Red Phosphor
Novel LiLa1-x-y(MoO4)2:xSm3+,yEu3+ (in short: LL1-x-yM:xSm3+,yEu3+) double molybdate red phosphors were synthesized by a solid-state reaction at as low temperature as 610 °C. The optimal doping concentration of Sm3+ in LiLa1-x(MoO4)2:xSm3+ (LL1-xM:xSm3+) phosphor is x = 0.05 and higher concentrations lead to emission quenching by the electric dipole-electric dipole mechanism. In the samples co-...
متن کاملEu3+-doped Bi4Si3O12 red phosphor for solid state lighting: microwave synthesis, characterization, photoluminescence properties and thermal quenching mechanisms
Europium-doped bismuth silicate (Bi4Si3O12) phosphor has been prepared by microwave irradiation method and its crystal structure is determined using Rietveld method. As-prepared phosphor consists of spherical, monodispersed particles with few agglomeration, high crystallinity, and narrow grain size distribution. The phosphor can be efficiently excited in the wavelength range of 260-400 nm, whic...
متن کاملNovel Eu3+-doped red-emitting phosphor Gd2Mo3O9 for white-light-emitting-diodes (WLEDs) application
Xiaoxia Zhao a,b, Xiaojun Wang a,∗, Baojiu Chen a,c, Qingyu Meng a,b, Weihua Di a,b, Guozhong Ren a,b, Yanmin Yang a,b a Lab of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, PR China b Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China c Department of Physics, Dalian Maritime Univer...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Shigen-to-Sozai
سال: 2002
ISSN: 0916-1740,1880-6244
DOI: 10.2473/shigentosozai.118.413