KCl:Eu 단결정 성장과 형광특성
Crystal Growth and Luminescence Properties of KCl Doped with Eu^(2+) Ions
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Single crystal of KCl doped with Eu^(2+) ions was grown by the Czochralski method in the high pressure Ar gas(purity 99.999 %) atmosphere with chamber pressure from which the crystal with high quality was obtained. As grown KCl:Eu^(2+) crystal was checked by X-ray diffraction. Luminescence properties of KCl:Eu are investigated by laser-excitation spectroscopy under 355 nm excitation at 14 and 295 K. The broad emission band due to the Eu^(2+) 5d → 4f transition is peaked at 417 nm with full width at half maximum of about 20 and 30 nm.
Abstract
Single crystal of KCl doped with Eu^(2+) ions was grown by the Czochralski method in the high pressure Ar gas(purity 99.999 %) atmosphere with chamber pressure from which the crystal with high quality was obtained. As grown KCl:Eu^(2+) crystal was checked by X-ray diffraction. Luminescence properties of KCl:Eu are investigated by laser-excitation spectroscopy under 355 nm excitation at 14 and 295 K. The broad emission band due to the Eu^(2+) 5d → 4f transition is peaked at 417 nm with full width at half maximum of about 20 and 30 nm.
참고문헌 (13)
- J.Rubio O, "Doubly-valent rare-earth ions in halide crystals", J. Phys. Chem. Sol, 52(1), pp.101~174 (1991)
- S. Kawamura, "Thermally stimulated current studies of electron and hole traps in single crystal", Phys. Stat. Sol. (a), 50(2), pp.669~677 (1978)
- B. Henderson, "Defects in Crystalline Solids", pp.69~103 (1972), Crane & Russak
- F. S. Galasso, "Structure, and Properties of Inorganic Solids", pp.63~ (1972), Pergamon Press
- A. J. Rampomi, "Site-selective laser spectroscopy of defect aggregation kinetics in KCl:Sm2+", Phys. Rev, 35, pp.2413~ (1987)
- J. G. Kang, "Spectral holes and induced luminescence in KCl co-doped with Eu2+ and Eu3+ ions", J. Phys. Condens. Matter, 13, pp.2835~ (2001)
- J. G. Kang, "Luminescence from KCl co-doped with Eu2+ and Eu3+ ions", J. Phys. Condens. Matter, 12, pp.199~ (2000)
- 장경혁, "Eu²+ 이온이 첨가된 CaF₂ 나노 분말의 레이저 분광학적 연구", 새물리, 60(4), pp.440~443 (2010), 한국물리학회
- W. E. Born, "Vibrational coupling of nearly degenerate electronic states", Phys. Rev, 45, pp.689~698 (1966)
- 이성수, "PLD방법으로 Al2O3(0001) 기판 이에 증착한 Y2O3:Eu3+ 박막이 형광 특성", 센서학회지, 13(3), pp.252~257 (2004), 한국센서학회
- Soung-SooYi, "Photoluminescence of Li-doped Y2O3:Eu3+ thin film phosphors grown by pulsed laser deposition", 센서학회지, 11(6), pp.8~257 (2002), 한국센서학회
- J. A. Hernandez, "Optical investigation of divalent europium in the alkali chlorides and bromides", J. Chem. Phys, 72, pp.198~205 (1980)
- M. G. Aguilara, "X-ray induced precipitation of Eu2+ in the alkali halides", Radiat. Eff, 73, pp.53~59 (1983)
