TiO2가 첨가된 oxy-fluoride 계 유리의 발광특성에 미치는 열처리 효과 연구
A study on the heat treatment effect upon luminous properties of oxy-fluoride glass doped with TiO2
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초록
본 연구에서는 광 발광특성이 우수하여 각종 광장치에 사용되고 있는 CaF2-Al2O3-B2O3-TiO2(CABT) 계 유리의 열처리 조건 및 결정상 생성에 따른 광학적 특성을 연구하였다. CAB 유리의 핵형성 및 결정성장을 제어하기 위해 핵형성제TiO2를 첨가하고, 발광 특성을 향상시키기 위해 희토류 이온 Eu2O3를 첨가하였다. 열처리 조건에 따른 결정 성장 특성을 확인하기 위해 DTA 분석을 수행하였으며, 이에 따른 나노 크기 결정상 변화에 대한 XRD 및 SEM 분석을 수행하였다. 분석 결과 100 nm 크기의 결정생성은 발광강도를 향상시키지만 그 이상의 큰 결정 입자생성은 오히려 발광 특성을 저하시켰다.
Abstract
In this study, the optical properties of CaF2-Al2O3-B2O3-TiO2 (CABT) system glass doped with rare earth ion,that is used in various light devices due to its excellent luminous properties, were analyzed as a function of kind of crystal phases formed and size of crystals generated in the glass matrix. TiO2 was added to control nucleation and crystallization,and Eu2O3 was added to enhance the luminescence characteristics. DTA analysis was performed to confirm the heat treatment condition o f crystal generation, and XRD and SEM analysis w ere carried out f or the crystal phase change of nanometer size. As a result of the analysis, the luminous properties of oxy-fluoride-based glass were improved duo to crystallization of nanometer size, but was rather degraded when excessively large crystals were generated.
참고문헌 (15)
- P. P. Fedorov, "Transparent oxyfluoride glass ceramics", J. Fluor. Chem, 172, pp.22~ (2015)
- Y. He, "Photoluminescence properties of Dy 3+doped oxyfluoride germanosilicate optical glass-ceramics", Opt. Commun, 315, pp.59~ (2014)
- H. Doweidar, "Structure and properties of CaF2-B2O3glasses", J. Mater. Sci, 47, pp.4028~ (2012)
- T. Katoa, "Dosimetric, luminescence and scintillation properties of Ce-doped CaF2-Al2O3-B2O3 glasses", J. Non-Cryst. Solids, 509, pp.60~ (2019)
- Y. Yu, "A new transparent oxyfluoride glass ceramic with improved luminescence", J. Non-Cryst. Solids, 353, pp.405~ (2007)
- J. Fu, "Eu 2+ions and CaF2-containing transparent glassceramics", Mater. Res. Bull, 37, pp.1843~ (2002)
- Z. -x. Hou, "Synthesis and spectroscopic properties of Er 3+-doped CaF2 nanocrystals in transparent oxyfluoride tellurite glass-ceramics", J. Alloys Compd, 514, pp.109~ (2012)
- M. Sk, "Lasing potentialities and white light generation capabilities of Dy 3+doped oxy-fluoroborate glasses", J. Lumin, 153, pp.382~ (2014)
- A A. Ali, "Optical properties of Sm 3+-doped CaF2 bismuth borate glasses", J. Lumin, 129, pp.1314~ (2009)
- P. Naresh, "Optical and dielectric features of zinc oxyfluoro borate glass ceramics with TiO2 as crystallizing agent", Ceram. Int, 40, pp.2249~ (2014)
- H. Liu, "Preparation and photoluminescence properties of europium ions doped TiO2 nanocrystals", J. Nanosci. Nanotech, 13, pp.5119~ (2013)
- N. Rajya Lakshmi, "Influence of TiO2 ions on spectroscopic properties of oxyfluoride glasses", Mater. Today Proc, 18, pp.192~ (2019)
- G. Zhao, "Study on photoluminescence properties of oxyfluoride germanate Glass", J. Non-Cryst. Solids, 357, pp.2332~ (2011)
- G. H. A. Melo, "Optical and spectroscopic properties of Eu2O3 doped CaBAl glasses", Opt. Mater, 54, pp.98~ (2016)
- 한우제, "결정성에 따른 TiO2 나노입자의 포토루미네선스 영향", 마이크로전자 및 패키징학회지, 26(1), pp.23~28 (2019), 한국마이크로전자및패키징학회