색순도가 우수한 갈륨 산화물계 적색 형광체의 광발광 특성

김경운; 최성호; 정하균; 남산; Kyoungun Kim; Sungho Choi; Ha-Kyun Jung; Sahn Nahm

Korean Journal of Materials Research, Vol.18, No.3, 159-162, March, 2008

DOI10.3740/MRSK.2008.18.3.159 Export Citation

색순도가 우수한 갈륨 산화물계 적색 형광체의 광발광 특성

Photoluminescence Characteristic of Gallate-Based Red Emitting Phosphors with High Color Purity

김경운, 최성호^†, 정하균, 남산 ¹

한국화학연구원 화학연구단
¹고려대학교 신소재공학부

Kyoungun Kim, Sungho Choi^†, Ha-Kyun Jung, and Sahn Nahm¹

Advanced Materials Division, Korea Research Institute of Chemical Technology, P.O. Box 107, Yuseong, Daejeon 305-600, Republic of Korea
¹Department of Materials Engineering, Korea University, Seoul 136-701, Republic of Korea

E-mail:

Eu3+-activated R3GaO6 (R = Y, Gd) phosphors were prepared in a conventional solid-state reaction and their optical properties were investigated. These compounds exhibit strong red emission under light excitation at 254 nm. The emission spectra are dominated by peaks appearing around 610-630 nm that are induced by the electric dipole transition of 5D0 → 7F2 of Eu3+. In addition, the appropriate CIE (Commission Internationale de l’clairage) chromaticity coordinates, (x = 0.656, y = 0.336) for Y3GaO6 and (x = 0.655, y = 0.334) for Gd3GaO6, become closer to the NTSC (National Television System Committee) standard values. With the optimized activator concentrations, the maximum emission brightness is approximately 80% of Y2O3 : Eu3+typical red-emitting phosphor with improved color purity under an excitation condition of 254 nm.

Keywords:CCFL;photoluminescence;phosphor

[References]

Ham H, Electron parts component Jan., 48 (2007)
Annussek G, The Gale Group Inc. Gale Encyclopedia of Alternative Medicine. On the web. Retrieved, 2008 from http://findarticles.com/p/articles/mi_g2603/is_0007/ai_ 2603000723 (2008)
Zhang S, IEEE Trans. Plasma Sci., 34, 294 (2006)
Gupta SK, Agrawal DC, Mohapatra YN, J. Electrochem. Soc., 151, H239 (2004)
Yu Z, Huang X, Zhuang W, Cui X, Li H, J. Alloys Comp., 390, 220 (2005)
Judd BR, Phys. Rev., 127, 750 (1962)
GS O, J. Chem. Phys., 37, 511 (1962)
Yamane H, Sakamoto T, Kubota SI, Shimada M, Acta Crystallogr., C55, 479 (1999)
Guo PM, Li GB, Zhao F, Liao FH, Tian SJ, Jing XP, J. Electrochem. Soc., 150(9), H201 (2003)
Laverenz HW, An introduction to luminescent of solids, Dover, New York, 333 (1968). (1968)
Dexter DL, Schulman JH, J. Chem. Phys., 22, 1063 (1954)
Kim HW, Yeo IS, in Proceedings of 2001 KIIEE Annual Conference p.129-132, Korea, (2001). (2001)
Kang YC, Roh HS, Park SB, J. Europ. Ceram. Soc., 22, 1661 (2002)

[Related Articles]

[1] Ham H, Electron parts component Jan., 48 (2007)

[2] Annussek G, The Gale Group Inc. Gale Encyclopedia of Alternative Medicine. On the web. Retrieved, 2008 from http://findarticles.com/p/articles/mi_g2603/is_0007/ai_ 2603000723 (2008)

[3] Zhang S, IEEE Trans. Plasma Sci., 34, 294 (2006)

[4] Gupta SK, Agrawal DC, Mohapatra YN, J. Electrochem. Soc., 151, H239 (2004)

[5] Yu Z, Huang X, Zhuang W, Cui X, Li H, J. Alloys Comp., 390, 220 (2005)

[6] Judd BR, Phys. Rev., 127, 750 (1962)

[7] GS O, J. Chem. Phys., 37, 511 (1962)

[8] Yamane H, Sakamoto T, Kubota SI, Shimada M, Acta Crystallogr., C55, 479 (1999)

[9] Guo PM, Li GB, Zhao F, Liao FH, Tian SJ, Jing XP, J. Electrochem. Soc., 150(9), H201 (2003)

[10] Laverenz HW, An introduction to luminescent of solids, Dover, New York, 333 (1968). (1968)

[11] Dexter DL, Schulman JH, J. Chem. Phys., 22, 1063 (1954)

[12] Kim HW, Yeo IS, in Proceedings of 2001 KIIEE Annual Conference p.129-132, Korea, (2001). (2001)

[13] Kang YC, Roh HS, Park SB, J. Europ. Ceram. Soc., 22, 1661 (2002)