Investigation of Fluorescence Degradation Mechanism of Hydrated BaMgAl10O17:Eu Phosphor
نویسندگان
چکیده
Investigation of Fluorescence Degradation Mechanism of Hydrated BaMgAl10O17:Eu Phosphor K. C. Mishra,* M. Raukas,* G. Marking, P. Chen, and P. Boolchand Osram Sylvania, Central Research, Beverly, Massachusetts 01863, USA Osram Sylvania, Precision Materials and Components, Towanda, Pennsylvania 18848, USA Department of Electrical Engineering, Computer Engineering and Computer Science, University of Cincinnati, Cincinnati, Ohio, USA
منابع مشابه
Insight the Luminescence Properties of AlON: Eu, Mg Phosphor under VUV Excitation
Owing to high quantum efficiency, adjustable composition and antioxidation properties of oxynitride phosphors, extensive investigations have focused on their photoluminescence properties under low-energy light excitation (UV or blue light). However, the vacuum ultraviolet (VUV) luminescence properties of oxynitride phosphors are rarely researched. Present work studies the structure and VUV lumi...
متن کاملSynthesis of nanocrystalline YVO4:Eu red emission phosphor with high fluorescence intensity by hydrothermal method using original vanadium–peroxo-citrate complex
Vanadium peroxo-citrate complex was used for the first time for synthesis of YVO4:Eu red emission phosphor material by hydrothermal method. It was found that particles size can be efficiently controlled in the range of 60–400 nm by changing concentration of the solution utilized for the hydrothermal process. The nanocrystalline powders of YVO4:Eu prepared at 200°C for 2 h with post-synthesis he...
متن کاملPreparation mechanism and luminescence of Sr2SiO4:Eu phosphor from (Sr,Eu)CO3@SiO2 core-shell precursor
Sr2SiO4:Eu phosphor for white light emitting diodes (LEDs) was synthesized by employing an as-prepared (Sr,Eu)CO3@SiO2 core-shell precursor as starting materials, and the effect of the core-shell precursor was also discussed on the crystal structure, particle morphology and luminescent properties of the resultant phosphor. The results showed that the hybrid βand α′-Sr2SiO4: Eu phosphor with fin...
متن کاملPreparation of persisted luminescence pigment and investigation of in glaze compatibility
In this paper, preparation of SrAl2O4:Eu,Dy luminescent pigment has been investigated. Coprecipitation as a low cost and facile method was selected. X-ray diffraction patterns indicated the formation of SrAl2O4:Eu,Dy phase through calcinations process above 800 °C. Moreover, a few amount of silica caused the structural transformation to alumina silicate phase. Transparent glaze which consist of...
متن کاملOne-Pot Synthesis of Single-Source Precursors for Nanocrystalline LED Phosphors M<sub>2</sub>Si<sub>5</sub>N<sub>8</sub>:Eu<sup>2+</sup> (M = Sr, Ba)
Highly efficient red-emitting nitridosilicate phosphors Sr2Si5N8:Eu and Ba1.5Sr0.5Si5N8:Eu (doping level 1 %) applicable to phosphor converted pc-LEDs were synthesized in nanocrystalline form at low temperatures employing a novel single-source precursor approach. Synthesis starts from nanocrystalline silicon and uses mixed metal amides M(NH2)2 with M ) Sr, Ba, Eu as reactive intermediates. In a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005