中国物理B ›› 2014, Vol. 23 ›› Issue (6): 64212-064212.doi: 10.1088/1674-1056/23/6/064212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Hydrothermal synthesis and up-conversion luminescence of Ho3+/Yb3+ co-doped CaF2

杨征a, 郭崇峰a, 陈叶青b, 李琳a, 李婷a, 郑仲铉b   

  1. a National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base) in Shaanxi Province, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710069, China;
    b Department of Physics, Pukyong National University, Busan, 608-737, Korea
  • 收稿日期:2013-08-17 修回日期:2013-11-01 出版日期:2014-06-15 发布日期:2014-06-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11274251), the Natural Science Foundation of Hubei Province, China (Grant No. 2010CDB01607), the Technology Foundation for Selected Overseas Chinese Scholar, Ministry of Personnel of China (excellent), the Foundation of Shaanxi Educational Committee, China (Grant No. 11JK0528), and the Foundation of Key Laboratory of Photoelectric Technology in Shaanxi Province, China (Grant No. 12JS094).

Hydrothermal synthesis and up-conversion luminescence of Ho3+/Yb3+ co-doped CaF2

Yang Zheng (杨征)a, Guo Chong-Feng (郭崇峰)a, Chen Ye-Qing (陈叶青)b, Li Lin (李琳)a, Li Ting (李婷)a, Jeong Jung-Hyun (郑仲铉)b   

  1. a National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base) in Shaanxi Province, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710069, China;
    b Department of Physics, Pukyong National University, Busan, 608-737, Korea
  • Received:2013-08-17 Revised:2013-11-01 Online:2014-06-15 Published:2014-06-15
  • Contact: Guo Chong-Feng, eong Jung-Hyun E-mail:guocf@nwu.edu.cn;jhjeong@pknu.ac.kr
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11274251), the Natural Science Foundation of Hubei Province, China (Grant No. 2010CDB01607), the Technology Foundation for Selected Overseas Chinese Scholar, Ministry of Personnel of China (excellent), the Foundation of Shaanxi Educational Committee, China (Grant No. 11JK0528), and the Foundation of Key Laboratory of Photoelectric Technology in Shaanxi Province, China (Grant No. 12JS094).

摘要: CaF2:Ho3+/Yb3+ nano-particles with intense green up-conversion (UC) luminescence are successfully synthesized via a facile hydrothermal approach by using NH4F as the fluoride source and Na2EDTA as a chelating reagent. Powder X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), and UC emission spectra are used to characterize the structures, shapes, and luminescent properties of the samples. The effects from fluoride sources and chelating reagents on the formations of CaF2 nano-particles are investigated, and the formation process is also deduced. Under the excitation of a 980-nm laser diode, the samples each show a green up-conversion emission centered at 540 nm corresponding to the 5S2/5F45I8 transitions of Ho3+. Moreover, the UC mechanisms of Ho3+/Yb3+ co-doped CaF2 nano-particles are also discussed.

关键词: CaF2, nano-particles, up-conversion, hydrothermal synthesis

Abstract: CaF2:Ho3+/Yb3+ nano-particles with intense green up-conversion (UC) luminescence are successfully synthesized via a facile hydrothermal approach by using NH4F as the fluoride source and Na2EDTA as a chelating reagent. Powder X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), and UC emission spectra are used to characterize the structures, shapes, and luminescent properties of the samples. The effects from fluoride sources and chelating reagents on the formations of CaF2 nano-particles are investigated, and the formation process is also deduced. Under the excitation of a 980-nm laser diode, the samples each show a green up-conversion emission centered at 540 nm corresponding to the 5S2/5F45I8 transitions of Ho3+. Moreover, the UC mechanisms of Ho3+/Yb3+ co-doped CaF2 nano-particles are also discussed.

Key words: CaF2, nano-particles, up-conversion, hydrothermal synthesis

中图分类号:  (Infrared transmitting materials)

  • 42.70.Km
78.55.Hx (Other solid inorganic materials)