青岛科技大学主页平台管理系统李镇江--中文主页-- New blue-emitting Ca<inf>2(1 − x)</inf>B<inf>2</inf>P<inf>2</inf>O<inf>10</inf>:2xEu2+(0.005 ≤ x ≤ 0.030) phosphors: Synthesis and photoluminescence properties

研究方向

关键字：Light emission;Calcium - Emission spectroscopy - Luminescence - Phosphates - Phosphors - Photoluminescence - Quenching - Scanning electron microscopy - Solid state reactions - X ray diffraction;Blue phosphors - Blue-emitting - Concentration quenching - Excitation and emission spectra - Luminescence properties - Optimal concentration - Photoluminescence properties - Solid state reaction method
摘要：A series of new blue-emitting Ca<inf>2(1 − x)</inf>B<inf>2</inf>P<inf>2</inf>O<inf>10</inf>:2xEu2+(x = 0.005, 0.010, 0.015, 0.020, 0.025, 0.030 mol%) phosphors were synthesized by the solid state reaction method. The X-ray diffraction (XRD) and scanning electron microscope (SEM) were utilized to characterize the prepared samples. The luminescence properties of the phosphor were studied by excitation and emission spectra. The optimal concentration of Eu2+ions in Ca<inf>2</inf>B<inf>2</inf>P<inf>2</inf>O<inf>10</inf>was determined to be x = 0.010 mol%, and the concentration quenching mechanism was studied in detail. These results suggest that Ca<inf>2</inf>B<inf>2</inf>P<inf>2</inf>O<inf>10</inf>:Eu2+is a potential blue phosphor for application in WLEDs. © 2016 Elsevier GmbH
卷号：127
期号：20
是否译文：否