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Scintillating properties of Bi-doped Y3Ga5O12

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주제분류재료공학

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Abstract

Shaped single crystals of Bi : Y3Ga5O12 (Bi = 0.041, 0.047 and 0.061 mol%) were grown by the micro-pulling-down method. Optical absorption spectra show an absorption band at 288 nm ascribed to the lowest energy 6s2 6s6p transition of Bi3+, while luminescence spectra demonstrate the band at 314 nm ascribed to the reverse radiative transition of the excited Bi3+ centres. At room temperature, dominant decay time component was found to be about 440 ns with a minor slower component 580 ns.

참고문헌 (9)

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  5. A. Novoselov, "Shaped single crystal growth and scintilla-tion properties of Bi", In press
  6. J. Kon, "Interface field-modified solute partition-ing during Mn LiNbO3 crystal fiber growth by micro-puling down method. I. Axial distribution analysis", 179, pp.567~ (1997)
  7. D.E. Lacklinson, "Absorptionspectra of Bi3+ and Fe3+ in Y3Ga5O12", pp.861~ (1974)
  8. G. Blasse, "Luminescence char-acteristics of Bi3+-activated oxides", pp.993~ (1979)
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