Tb3+와 Eu3+로 활성화시킨 Al3GdB4O12 형광체의 발광 특성

김기운; 강세선; 이임렬; Ki-Woon Kim; Sei-Sun Kang; Rhim-Youl Lee

Korean Journal of Materials Research, Vol.10, No.1, 49-54, January, 2000

Export Citation

Tb3+와 Eu3+로 활성화시킨 Al3GdB4O12 형광체의 발광 특성

Photoluminance Properties of Al3GdB4O12 Phosphors Activated by Tb3+ and Eu3+

김기운, 강세선¹, 이임렬

단국대학교 재료공학과
¹대전산업대학교 공동재료실험실

Ki-Woon Kim, Sei-Sun Kang¹, and Rhim-Youl Lee

Departmnet of Materials Science & Engineering, Dankook University, Cheonan 330-714, Korea
¹Materials Testing Center, Taejon National University of Technology, Taejon 330-172, Korea

초록

PDP용의 새로운 녹색 적색형광체를 제조한 후 광특성을 분석하였다. 또한 이들 형광체의 발광특성을 상용품인 녹색 형광체와 적색의 PDP 형광체와 상호 비교하였다. 형광체는 에서 4시간 동안 공상 반응으로 제조하였다. 147nm의 진공자외선 조사시 (15mol%) 녹색 형광체의 발광휘도는 상용품 보다 증가하였으나 색좌표는 상대적으로 저하되었다. 한편 (15mol%) 적색 형광체의 발광 휘도는 상용품 보다 작았으나 CIE 색좌표는 일부 개선되었다. 형광체는 에서 모체 흡수에 의한 강한 여기밴드가 있으며, 진공자외선 영역에서 녹색형광체의 여기강도는 보다 컸으나 적색 형광체의 여기강도는 보다는 작았다.

The new green phosphors were synthesized and then characterized their optical properties for PDP application. And also the photoluminescence properties of these phosphors were compared with the commercial green red PDP phosphors. The phosphors were synthesized by solid state reaction at 115 for 4hr. It was found that the emitting brightness of (15mol%) green phosphor under 147nm excitation was higher than that of commercial green PDP phosphor. However, the color coordinate of this new green phosphor was inferior to the commercial one. On the other hand, the emitting intensity of (15mol%) red phosphor was smaller than the red one, but the CIE coordinate was slightly improved. The excitation spectrum showed that phosphors had a strong excitation band at associated with the host absorption. And the photoluminance excitation (PLE) intensity in VUV range for green phosphor was higher than that of , but the PLE intensity of red phosphor was smaller than .

Keywords:optical properties;emissivity

[References]

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[2] Morell A, Khiati NE, J. Electrochem. Soc., 140(7), 2019 (1993)

[3] Yoshimura F, Yamakawa M, Porceeding of 3rd Int. Display Workshop, 2, 77 (1997)

[4] Yocom N, Meltzer RS, Jang KW, Grinn M, J. Society for Information Display, 3-4, 169 (1996)

[5] Takahashi K, Hashuchi S, Hurakami Y, Takei M, Itoh K, Tachibana K, Sakai T, Jpn. J. Appl. Phys., 35, 251 (1996)

[6] Saubat B, Fuuassier C, Hagenmuller P, Bourcet JC, Mat. Res. Bull., 16(2), 193 (1981)

[7] Koite J, Kogima T, Toyonaga R, Kagami A, Hase T, Inaho S, J. Electrochem. Soc., 126(6), 1008 (1979)

[8] Dean JA, Langes's Handbook of Cheistry (1985)

[9] Verstegen JMPJ, J. Electrochem. Soc., 121(12), 1631 (1974)

[10] Morell A, Goumard N, Soc. Information Display Digest, 159 (1992)

[11] Samson JAR, Techniques of Vacuum Ultraviolet Spectroscopy, 216 (1967)