Luminescence Properties of YTa7O19 doped with Tm3+

Tm3+ 도핑에 따른 YTa7O19의 형광특성

  • Ryu, Hojin (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park, Hee-Dong (Advanced Materials Division, Korea Research Institute of Chemical Technology)
  • 류호진 (한국화학연구소 화학소재연구단) ;
  • 박희동 (한국화학연구소 화학소재연구단)
  • Received : 1997.03.28
  • Accepted : 1997.06.09
  • Published : 1997.08.10

Abstract

Samples of $YTa_7O_{19}$ doped with $Tm^{3+}$ were prepared using the solid state reaction method to investigate their photoluminescence characteristics. The samples were identified by XRD and SEM, and the optical measurement was also carried out. Under 359 nm excitation, $YTa_7O_{19}$ doped with $Tm^{3+}$ exhibited a narrow-band blue emission, at about 455 nm. The maximum emission intensity was obtained at $YTa_7O_{19}$ doped with 0.12 mole $Tm^{3+}$. This revealed the concentration quenching of emission intensity.

Keywords

Acknowledgement

Supported by : 과학기술처

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