中国物理B ›› 2013, Vol. 22 ›› Issue (5): 57803-057803.doi: 10.1088/1674-1056/22/5/057803

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Near-infrared downconversion in Eu2+ and Pr3+ co-doped KSrPO4 phosphor

孙家跃, 孙翊宁, 朱吉成, 曾军辉, 杜海燕   

  1. School of Science, Beijing Technology and Business University, Beijing 100048, China
  • 收稿日期:2012-06-01 修回日期:2012-10-09 出版日期:2013-04-01 发布日期:2013-04-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 20976002), the Beijing Natural Science Foundation, China (Grant No. 2122012), and the Special Funding of the Ministry of Education of Guangdong Province, China (Grant No. 2011B090400100).

Near-infrared downconversion in Eu2+ and Pr3+ co-doped KSrPO4 phosphor

Sun Jia-Yue (孙家跃), Sun Yi-Ning (孙翊宁), Zhu Ji-Cheng (朱吉成), Zeng Jun-Hui (曾军辉), Du Hai-Yan (杜海燕)   

  1. School of Science, Beijing Technology and Business University, Beijing 100048, China
  • Received:2012-06-01 Revised:2012-10-09 Online:2013-04-01 Published:2013-04-01
  • Contact: Sun Jia-Yue E-mail:jiayue_sun@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 20976002), the Beijing Natural Science Foundation, China (Grant No. 2122012), and the Special Funding of the Ministry of Education of Guangdong Province, China (Grant No. 2011B090400100).

摘要: A novel near-infrared (NIR) downconversion (DC) phosphor KSrPO4:Eu2+, Pr3+ is synthesized by the conventional high temperature solid-state reaction. The Eu2+ acts as an efficient sensitizer for Pr3+ in the KSrPO4 host. With broadband near-ultraviolet light excitation induced by the 4f→5d transition of Eu2+, the characteristic NIR emission of Pr3+, peaking at 974 nm and 1019 nm due to 3P01G4 and 1G43H4 transitions, is generated as a result of the energy transfer from Eu2+ to Pr3+. The luminescence spectra in both the visible and the NIR regions and the decay lifetime curves of Eu2+ prove the energy transfer from Eu2+ to Pr3+. This Eu2+ and Pr3+ co-doped KSrPO4 phosphor may be a promising candidate to modify the spectral mismatch behavior of crystalline solar cells and sunlight.

关键词: optical properties, cooperative energy transfer, downconversion

Abstract: A novel near-infrared (NIR) downconversion (DC) phosphor KSrPO4:Eu2+, Pr3+ is synthesized by the conventional high temperature solid-state reaction. The Eu2+ acts as an efficient sensitizer for Pr3+ in the KSrPO4 host. With broadband near-ultraviolet light excitation induced by the 4f→5d transition of Eu2+, the characteristic NIR emission of Pr3+, peaking at 974 nm and 1019 nm due to 3P01G4 and 1G43H4 transitions, is generated as a result of the energy transfer from Eu2+ to Pr3+. The luminescence spectra in both the visible and the NIR regions and the decay lifetime curves of Eu2+ prove the energy transfer from Eu2+ to Pr3+. This Eu2+ and Pr3+ co-doped KSrPO4 phosphor may be a promising candidate to modify the spectral mismatch behavior of crystalline solar cells and sunlight.

Key words: optical properties, cooperative energy transfer, downconversion

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

  • 78.55.-m
61.05.cp (X-ray diffraction) 33.50.Dq (Fluorescence and phosphorescence spectra)