한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Rietveld refinement study on variation of emission wavelength of $(Sr_{1-x},Ca_x)_2MgSi_2O_7:Eu^{2+}$ phosphor for white LED applications

  • Kwon, Ki-Hyuk (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Im, Won-Bin (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Jang, Ho-Seong (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Yoo, Hyoung-Sun (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Jeon, Duk-Young (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
  • Published : 2008.10.13
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, a blue-emitting $Sr_2MgSi_2O_7:Eu^{2+}$ (SMS) phosphor for white light-emitting diodes is reported. Through transition of $4f{\rightarrow}5d$ in $Eu^{2+}$, SMS showed a strong blue emission under UV excitation. Additionally, the variation of emission wavelength of SMS is explained by crystal field effect and is supported by rietveld refinement.

Keywords