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Energy transfer mechanism of GdPO4: RE3+ (RE = Tb, Tm) under VUV-UV excitation

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Abstract

Polycrystal of GdPO4:RE3+ (RE=Tb, Tm) phosphors were prepared by solid-state method. Vacuum ultraviolet excitation and emission spectrum and the energy transfer mechanism between the host and dopants of Tb3+ and Tm3+ were investigated respectively. The emission of Gd3+ at 313 nm was enhanced by the strong absorption of CTS of Tm3+ at 180 nm in GdPO4: Tm. It has also been concluded that the excitation of Gd3+ is transferred to Tb3+ and then emission peaks of 5DJ→7FJ of Tb3+ were observed.

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Authors and Affiliations

  1. Institute of Material Physics, Tian** University of Technology/Tian** Key Laboratory for Photoelectric Materials and Devices, Tian**, 300191, China

    Li Lan, Li Guangmin, Wang Dajian, Tao Yi & Zhang **aosong

Authors
  1. Li Lan
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  2. Li Guangmin
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  3. Wang Dajian
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  4. Tao Yi
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  5. Zhang **aosong
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Correspondence to Li Lan.

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Li, L., Li, G., Wang, D. et al. Energy transfer mechanism of GdPO4: RE3+ (RE = Tb, Tm) under VUV-UV excitation. SCI CHINA SER E 49, 408–413 (2006). https://doi.org/10.1007/s11431-006-2001-6

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  • DOI: https://doi.org/10.1007/s11431-006-2001-6

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