YBO 3 : Tb 형광체의 광특성에 대한 La 3+ 및 Ce 3+ 이온의 영향

온지원; 이정백; 김유혁; Ji-Won On; Jeong-Baek Lee; Youhyuk Kim

Korean Journal of Materials Research, Vol.13, No.8, 509-513, August, 2003

DOI10.3740/MRSK.2003.13.8.509 Export Citation

YBO 3 : Tb 형광체의 광특성에 대한 La 3+ 및 Ce 3+ 이온의 영향

Effect of La 3+ and Ce 3+ Ions on Photoluminescence Behavior of YBO 3 : Tb Phosphors

온지원, 이정백, 김유혁^†

단국대학교 첨단과학부

Ji-Won On, Jeong-Baek Lee, and Youhyuk Kim^†

Department of Chemistry, School of Advanced Sciences, Dankook University, Korea

E-mail:

In the present investigation, La 3+ and Ce V ions were substituted for Y 3+ in the YBO 3 : Tb in various concentrations. It has been found that these phosphors form solid solutions within limited concentration ranges Excitation and emission spectra under 254 nm and 147 nm were investigated for these phosphors to evaluate influences of La 3+ and Ce 3+ ions on brightness and CIE color coordinates. It has been observed that brightness of (Y,La)BO 3 : Tb under 254 nm and 147 nm when La 3+ ions are added show an increase of 2.7 times and 1.25 times, respectively. On the other hand, emission intensities of peaks in Y 0.8?x BO 3 : Tb 0.2 , Ce x show continuos decrease as Ce 3+ / content is increased from 0 to 0.4. CIE color coordinates of prepared phosphors show yellowish green which is needed to be improved to be used for display applications.

Keywords:phosphors;borate;lamp;PDP(Plasma Display Panel);luminescence

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[3] Fu WT, Fouassier C, Hagenmuller P, Mat. Res. Bull., 22, 899 (1987)

[4] You H, Wu X, Zeng X, Hong G, Kim CH, Pyun CH, Park CH, Mat. Sci. Eng. B, 86, 11 (2001)

[5] Sohn KS, Choi YY, Park HD, J. Electrochem. Soc., 147(5), 1988 (2000)

[6] Shionoya S, Yen WM, Phosphor Handbook, CRC Press (1998) (1998)

[7] Laureiro Y, Veiga ML, Fernandez F, Saez-Puche R, Jerez A, Pico C, J. Less Com. Met., 157, 335 (1990)

[8] Yoshimura F, Yamakaya M, in Proceedings of the Third International Display Workshops, Kobe, Japan, Nov. 2, 77 (1996) (1996)

[9] Schaik WV, Lizzo S, Smit W, Blass G, J. Electrochem. Soc., 140, 216 (1993)

[10] Koedam M, Opstelten JJ, Light. Res. Technol., 3, 205 (1971)

[11] Dean JA, Lange's Handbook of Chemistry, 13th Ed., McGraw-Hill Book Company (1985) (1985)

[12] Blasse G, Grabmaier BC, Luminescent Materials, Spring-Verlag, p45 (1994) (1994)

[13] Zhang HX, Buddhudu S, Kam CH, Zhou Y, Lam YL, Wong KS, Ooi BS, Ng SL, Que WX, Mater. Chem. Phys., 68(1-3), 31 (2001)

[14] Ding SJ, Zhang DW, Wang PF, Wang JT, Mater. Chem. Phys., 68(1-3), 98 (2001)

[15] Sohn KS, Choi YY, Park HD, Choi HG, J. Electrochem. Soc., 147(6), 2375 (2000)

[16] Dezter DL, Schulman JH, J. Chem. Phys., 22, 1063 (1954)

[17] Blasse G, Bril A, J. Electrochem. Soc., 3252 (1972)