Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Luminescence Properties of Red Phosphor Gd2-x-yLixEuyO3

적색 형광체 Gd2-x-yLixEuyO3의 발광 특성

  • 조신호 (신라대학교 광전자공학과, 극초단광전자연구소) ;
  • 변송호 (경희대학교 환경응용화학부) ;
  • 김동국 (경북대학교 자연과학대학 화학과) ;
  • 박중철 (신라대학교 나노생체화학공학부 나노소재공학전공)
  • Published : 2002.03.01
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Abstract

We present a new toed phosphor, $Gd_{2-x-y}Li_xEu_yO_3$ with superior luminescent Properties compared to the commercially available red phosphor $Y_2O_3:Eu^{3+}$. The phosphor, with a diameter of about $2\mu\textrm{m}$, consists of the psedospherical particles in a regular array. The photoluminescence measurements as a function of the laser power and the Eu mole fraction were performed at zoom temperature The luminescence intensity linearly increases as both the laser power and the Eu mole fraction Increase. As for the dependence on cathodoluminescence, the incorporation of Eu and Li ions into $Gd_2O_3$ lattice brings about an increase in luminescent efficiency. The highest emission intensity for the phosphor occurs at the applied voltage of 500 V, its value is larger than that of $Y_2O_3:Eu^{3+}$ powder by 70%.

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References

  1. Luminescent Materials G. Blasse;B. C. Grabmaier
  2. Appl. Phys. Lett. v.62 no.9 Electroluminescence in licodoped ZnS:TmF₃ thin film devices S. H. Sohn;D. G. Hyun;A. Yamada;Y. Hamakawa https://doi.org/10.1063/1.108510
  3. J. Electrochem. v.142 no.9 On the formation of flux grown Y₂O₂S:Eu³+ red phosphor M. Kottaisamy;R. Jagannathan;R. P. Rao;M. Avudaithai;L. K. Srinivasan;V. Sundaram https://doi.org/10.1149/1.2048714
  4. J. Appl. Phys. v.86 no.6 Chemical vapor synthesis and luminescence properties of nanocrystalline cubic Y₂O₃:Eu A. Konrad;T. Fries;A. Gahn;F. Kummer;U. Herr;R. Tidecks;K. Samwer https://doi.org/10.1063/1.371177
  5. Phosphor Handbook I S. Shionoya;W. M. Yen
  6. 전기전자재료학회논문지 v.14 no.2 Poly(3-hexylthio phene)의 PL발광 메카니즘에 관한 연구 김주승;서부완;구할본
  7. 전기전자재료학회논문지 v.14 no.3 PLD 증착 변수에 따른 II-VI족 화합물 ZnO반도체 박막의 발광 특성 연구 배상혁;윤일구;서대식;명재민;이상렬
  8. 전기전자재료학회논문지 v.13 no.10 ZnS형광체 분말의 결정 결함에 따른 발광특성연구 박용규;성현호;조황신;양해석;이종찬;박대희
  9. Appl. Phys. Lett. v.72 no.5 New phosphor (Gd 2-x Znx)O 3-y:Eu³+ with luminescent efficiency and superior chromaticity X. D. Sun;X. D. Xiang https://doi.org/10.1063/1.120809
  10. Jpn. J. Appl. Phys. v.36 no.10 Luminescene properties of rare earth ion-doped monoclinic yttrium sesquioxide M. Okumura;M. Tamatani;A. K. Albessard;N. Matsuda https://doi.org/10.1143/JJAP.36.6411
  11. Materials Science and Engineering B v.38 Mixing LiF in Gd₂O₃:Eu to enhance ultraviolet radiation induced thermoluminescent sensitivity after sintering process S. M. Yeh;C. S. Su https://doi.org/10.1016/0921-5107(95)01511-6
  12. J. Mater. Res. v.14 no.6 Preparation of nonaggregated Y₂O₃:Eu phosphor particles by spray pyrolysis method Y. C. Kang;S. B. Park;I. W. Lenggoro;K. Okuyama https://doi.org/10.1557/JMR.1999.0349
  13. J. Phys. Chem. Solids v.55 no.8 Luminescence properties of Pr³+ in cubic rare earth oxides G. C. Aumuller;W. Kostler;B. C. Grabmaier;R. Frey https://doi.org/10.1016/0022-3697(94)90029-9
  14. Jpn. J. Appl. Phys. v.31 no.10 Photoluminescence on Li-codered ZnS:Tm phosphor T. Hatayama;S. Fukumoto;S. Ibuki https://doi.org/10.1143/JJAP.31.3383