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논문 기본 정보

자료유형
학술저널
저자정보
Myun Hwa Chung (Chungbuk National University) Joo Han Kim (Chungbuk National University)
저널정보
한국진공학회(ASCT) Applied Science and Convergence Technology Applied Science and Convergence Technology Vol.26 No.2
발행연도
2017.3
수록면
26 - 29 (4page)

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초록· 키워드

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Thin films of europium-doped yttrium oxide (Y₂O₃:Eu) were prepared on Si (100) substrates by using a radio frequency (RF) magnetron sputtering. After the deposition, the films were annealed at 1000℃ in an air ambient for 1 hour. X-ray diffraction analysis revealed that the Y₂O₃:Eu films had a polycrystalline cubic α-Y₂O₃ structure. The as-deposited films showed no photoluminescence (PL), which was due to poor crystalline quality of the films. The crystallinity of the Y₂O₃:Eu films was significantly improved by annealing. The strong red PL emission was observed from the annealed Y₂O₃:Eu films and the highest intensity peak was centered at around 613 nm. This emission peak originated from the <SUP>5</SUP>D₀→ <SUP>7</SUP>F₂ transition of the trivalent Eu ions occupying the C₂ sites in the cubic α-Y₂O₃ lattice. The broad PL excitation band was observed at wavelengths below 280 nm, which was attributed to the charge transfer transition of the trivalent Eu ion.

목차

Abstract
I. Introduction
II. Experiments
III. Results and Discussion
IV. Conclusions
References

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