- <tex>$Tm^{3+}$</tex>과 <tex>$Ho^{3+}$</tex> 이 복합 첨가된 Ge-Ga-S계 유리의 형광 발진 특성 및 에너지 전달기구
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- 조우영,허종
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- 요업학회지
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- 1996년|33권 4호|pp.425-431 (7 pages)
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- 한국세라믹학회
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- 정기간행물| PDF텍스트
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Ge25Ga5S70 glasses doped with Tm3+ or Tm3+/Ho3+ were prepared and the emission efficiencies of 2.02 ${mu}{ extrm}{m}$ fluorescence were investigated. In the case of Tm3+ single doping intensity of 1.80${mu}{ extrm}{m}$ (3F4longrightarrow8H4) fluorecence remained unchange. Glasses co-doped with Tm3 and H3+ showed a continuous increase in 2.02${mu}{ extrm}{m}$ emission intensity with the addition of Tm3 from 0.1 to 1.0 wt% while the amount Tm3:5H4longrightarrowHo3+: 5I7 Claculation of the energy transfer rates based on the steady-state rate equations showed that the forward transfer of Tm3longrightarrowHo3+ increased greater than backward transfer with the addition of Ho3+