| 조합화학을 이용한 (Gd0.74Y0.11Tb0.15P1.15)Oδ 형광체 합성 및 발광특성 |
| 이재문, 유정곤1, 박덕현1, 김지식2, 손기선 |
순천대학교 재료ㆍ금속공학과
1순천대학교 재료ㆍ금속공학
2상주대학교 신소재공학 |
| Synthesis of (Gd0.74Y0.11Tb0.15P1.15)OδPhosphors Using Combinatorial Chemistry |
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| ABSTRACT |
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Recently developed Plasma Display Panels (PDP) require phosphors of high luminance at Vacuum Ultraviolet (VUV) excitation. The present investigation developed new PDP phosphors using combinatorial chemistry method. We applied T $b^{3+}$ -activated yttrium gadolinium phosphates system to our combinatorial fine-tuning technique. As a result, the optimum composition was determined to be (G $d_{0.74}$ $Y_{0.11}$T $b_{0.15}$) $P_{1.15}$ $O_{delta}$ through the two-step combinatorial screening process including excess phosphorous and Gd replacement. We found that the sample of the optimum composition shows a higher luminescence efficiency at VUV excitation and a shorter decay time than the commercially available Z $n_2$ $SiO_4$:Mn phosphor.r.sphor.r. ⠌㔀 㘴ㄮ㔻᠀䡯浥…慭楬礠浡湡来浥湴 |
| Key words:
Combinatorial ehemistry, VUV excitation, Excess Phosphorous, $YPO_4$$GdPO_4$ |
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