作者: Yiru Wang , Xiaohua Liu , Yuntong Li , Lindan Jing
DOI: 10.1016/J.JALLCOM.2015.09.060
关键词: Doping 、 Gadolinium 、 Optoelectronics 、 Emission spectrum 、 Photoluminescence 、 Monoclinic crystal system 、 Analytical chemistry 、 Solid-state lighting 、 Materials science 、 Luminescence 、 Phosphor
摘要: Abstract Eu 3+ -activated novel potassium gadolinium double vanadates K 3 Gd(VO 4 ) 2 phosphors have been synthesized via solid-state reaction. The crystal phase, surface morphology and photoluminescence properties of the phosphor were investigated. X-ray diffraction results demonstrate that Gd 1− x (VO has monoclinic structure with space group p21/m(11). emission spectra suggest present an intense charge transfer band at 314 nm a strong red ( 5 D 0 → 7 F transition) 617 nm. optimum doping concentration ions in is around 50 mol% major mechanism for quenching exchange interaction. emitting light color can be tunable by varying excitation wavelength warm white achieved 337 nm. luminescence may potential applications as materials w-LEDs solid state lighting.