博士生导师
硕士生导师
教师拼音名称：lidongxiang
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学历：博士研究生
学位：理学博士
毕业院校：山东大学
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关键字：Strontium compounds;Citrus fruits - Europium - High temperature applications - Luminescence - Optical materials - Phosphors - Photoluminescence - Solid state reactions - X ray powder diffraction;Charge compensation - High temperature solid-state reaction - Orange-red - Orange-red phosphor - Photoluminescence properties - Photoluminescence spectrum - Triclinic systems - WLEDs
摘要：A new orange-red phosphor Sr<inf>3</inf>P<inf>4</inf>O<inf>13</inf>: Eu was synthesized by a high temperature solid-state reaction. X-ray powder diffraction (XRD) analysis confirms the formation of Sr<inf>3</inf>P<inf>4</inf>O<inf>13</inf>in a triclinic system with space group P1¯. The photoluminescence spectra indicate that Sr<inf>3</inf>P<inf>4</inf>O<inf>13</inf>: Eu can be excited effectively by near ultraviolet (NUV) light and exhibit bright orange-red emission with excellent color stability. Interestingly, the emission bands of Eu<sup>2+</sup>and Eu<sup>3+</sup>were both observed in the photoluminescence spectra of air-sintered Sr<inf>3</inf>P<inf>4</inf>O<inf>13</inf>: Eu phosphor due to the self-reduction effect. This kind of abnormal reduction was explained by a charge compensation model. © 2014 Elsevier Ltd and Techna Group S.r.l.<br/>
卷号：40
期号：6
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