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 Characteristics of ZnGa2O4 Phosphors with the Doped Activator

활성제 첨가에 따른 ZnGa2O4 형광체의 발광특성

  • 홍범주 (경원대학교 전기정보공학과) ;
  • 최형욱 (경원대학교 전기정보공학과)
  • Published : 2006.05.01
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Abstract

The $ZnGa_2O_4$ and Mn, Cr-doped $ZnGa_2O_4$ Phosphors were synthesized through conventional solid state reactions. The XRD patterns show that the $ZnGa_2O_4$ has a (3 1 1) main peak and a spinel phase. The emission wavelength of $ZnGa_2O_4$ showed main peak of 420 nm and maximum intensity at the sintering temperature of $1100^{\circ}C$. In the crystalline $ZnGa_2O_4$, the Mn shows green emission (510 nm, $^4T_1-^6A_1$) with a quenching concentration of 0.6 mol%, and the Cr shows red emission (705 nm, $^4T_2-^4A_2$) with a quenching concentration of 2 mol%. These results indicate that $ZnGa_2O_4$ Phosphors hold promise for potential applications in field emission display devices with high brightness operating in full color regions.

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References

  1. S. Itho, H. Toki, Y. Sato, K. Morimoto, and T. Kishino, 'The $ZnGa_2O_4$ phosphor for lowvoltage blue cathodoluminescence', J. ElectroChem. Soc., Vol. 138, No.5, p. 1509, 1991
  2. L. E. Shea, R. K. Datta, and J.J. Brown, Jr., 'Photoluminescence of $mn^{2+}$ -activated $ZnGa_2O_4$', J. Electrochem. Soc., Vol. 141, No.7, p, 1950, 1994 https://doi.org/10.1149/1.2055033
  3. I. J.Hsieh, K. T. Chu, C. F. Yu, and M. S. Feng, 'Cathodoluminescent characteristics of $ZnGa_2O_4$ phosphor grown by radio frequency magnetron sputtering', J. Appl. Phys., Vol. 76, No.6, p. 3735, 1994
  4. 김용천, 홍범주, 권상직, 김경환, 최형욱, '$ZnGa_2O_4$ 형광체 박막의 제작 및 특성', 한국전기전자재료학회 2004추계학술대회논문집, p. 539, 2004
  5. H. I. Kang, J. S. Kim, M. Lee, J. H. Bahng, J. C. Choi, H. L. Park, G. C. Kim, T. W. Kim, Y.H. Hwang, S.I. Mho, S. H. Eom, Y. S. Yu, H. J. Song, and W. T. Kim, 'Tunable color emission of $ZnGa_2O_4:Si^{4+}$ phosphors with enhanced brightness due to donor formation', Solid State Commun., Vol. 122, No. 12, p. 633, 2002
  6. K. H. Park, H. L. Park, and S. I. Mho, 'Compositional dependence of photoluminescence (PL) of $ZnGa_2O_4:Li^+;Li^+$ ion incorporated as $LiGa_5O_8$, $LiGaO_2$, and $Li_2O$' , J. Lumin., Vol. 93, No.3, p. 205, 2001
  7. T. Abritta and F. H. Blak, ':Luminescence study of $ZnGa_2O_4:Co^{24n}$', J. Lumin., Vol. 48-49, No. 2, p. 558, 1991
  8. C. F. Yu and P. Lin, 'Manganese-activated luminescence in $ZnGa_2O_4$', J. Appl. Phys., Vol. 79, No. 9, p. 7191, 1996 https://doi.org/10.1063/1.361435
  9. T. Ohtake, N. Sonoyama, and T. Sakata, 'Electrochemical luminescence of $ZnGa_2O_4$ semiconductor electrodes activated with Cr and Co', Chemical Physics Letters, Vol. 308, No. 6, p. 517, 2000