| 에틸렌 글리콜을 이용하여 용매열 합성으로 Eu3+가 도핑된 Y2O3 나노 입자의 제조 및 특성 |
| 신수철, 조태환 |
| 단국대학교 공업화학과 |
| Preparation and Properties of Eu3+ Doped Y2O3 Nanoparticles with a Solvothermal Synthesis Using the Ethylene Glycol |
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| ABSTRACT |
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Eu doped $Y_2$ $O_3$ nanoparticles were prepared with the solvothermal synthesis using the ethyleneglycol solvent at 20$0^{circ}C$ for 3-5 h and then annealed in air at 1000-140$0^{circ}C$ for 2-4 h. The X-ray diffraction pattern of annealed crystals at 100$0^{circ}C$ for 2 h could be indexed as pure cubic cell of $Y_2$ $O_3$ phase with lattice parameters a=10.5856 $AA$ which is very close to the reported data (JCPDS Card File, 41-1105 a=10.6041 $AA$). Average size of prepared phosphor particles have about 100 nm, which were spherical morphology. The phosphor particle sizes decreased and the emission intensity increased at the annealing temperature. Though PL spectrum analysis, the 3% Eu doped $Y_{2-x}$ $O_3$:E $u_{x}$ $^{3+}$(x=0.06) phosphor showed the excitation spectrum at 250 nm wavelength and the maximum emission spectrum at 611 nm wavelength.h.h. |
| Key words:
Phosphors, Solvethermal synthesis, Photoluminescence, Nanoparticles |
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