中国物理B ›› 2013, Vol. 22 ›› Issue (9): 97801-097801.doi: 10.1088/1674-1056/22/9/097801

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Effects of Li+ on photoluminescence of Sr3SiO5：Sm3+ red phosphor

张新, 徐旭辉, 邱建备, 余雪   

  1. College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • 收稿日期:2013-03-18 修回日期:2013-04-08 出版日期:2013-07-26 发布日期:2013-07-26
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11204113), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20115314120001), the China Postdoctoral Science Foundation (Grant No. 2011M501424), and the Natural Science Foundation of Yunnan Province, China (Grant No. 2011FB022).

Effects of Li+ on photoluminescence of Sr3SiO5：Sm3+ red phosphor

Zhang Xin (张新), Xu Xu-Hui (徐旭辉), Qiu Jian-Bei (邱建备), Yu Xue (余雪)   

  1. College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2013-03-18 Revised:2013-04-08 Online:2013-07-26 Published:2013-07-26
  • Contact: Yu Xue E-mail:yuyu6593@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11204113), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20115314120001), the China Postdoctoral Science Foundation (Grant No. 2011M501424), and the Natural Science Foundation of Yunnan Province, China (Grant No. 2011FB022).

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摘要： The structure and photoluminescence (PL) properties of Sr3SiO5: Sm3+ and Li+-doped Sr3SiO5: Sm3+ red-emitting phosphors were investigated. Samples were prepared by the high-temperature solid-state method. PL spectra show that the concentration quenching occurs when the Sm3+ concentration is beyond 1.3 mol% in Sr3SiO5: Sm3+ phosphor without doping Li+ ions. The concentration-quenching mechanism can be explained by the electric dipole-dipole interaction of Sm3+ ions. The incorporation of Li+ ions into Sr3SiO5: Sm3+ phosphors, as a charge compensator, improves the PL properties. The lithium ions also suppress the concentration quenching in Sm3+ with concentration increased from 1.3 mol% to 1.7 mol%.

关键词: photoluminescence, concentration quenching, charge compensation

Abstract: The structure and photoluminescence (PL) properties of Sr3SiO5: Sm3+ and Li+-doped Sr3SiO5: Sm3+ red-emitting phosphors were investigated. Samples were prepared by the high-temperature solid-state method. PL spectra show that the concentration quenching occurs when the Sm3+ concentration is beyond 1.3 mol% in Sr3SiO5: Sm3+ phosphor without doping Li+ ions. The concentration-quenching mechanism can be explained by the electric dipole-dipole interaction of Sm3+ ions. The incorporation of Li+ ions into Sr3SiO5: Sm3+ phosphors, as a charge compensator, improves the PL properties. The lithium ions also suppress the concentration quenching in Sm3+ with concentration increased from 1.3 mol% to 1.7 mol%.

Key words: photoluminescence, concentration quenching, charge compensation

中图分类号:  (Photoluminescence, properties and materials)

  • 78.55.-m
42.70.-a (Optical materials)