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Realizing Visible Light Excitation of Tb3+ via Highly Efficient Energy Transfer from Ce3+ for LED-Based Applications
W.G.Xiao; X.F.Liu; J.H.Zhang; J.R.Qiu
2019
发表期刊Advanced Optical Materials
ISSN2195-1071
卷号7期号:9页码:6
摘要Trivalent terbium (Tb3+)-activated luminescence materials usually show highly efficient green emission with the full width at half maximum of merely 10 nm, but suffer from the unsatisfactory excitable wavelength (<380 nm) as well as the inefficient light absorption. Here, the realization of efficient visible light excitation of Tb3+ is demonstrated in terbium-concentrated garnet Ca2TbHf2Al3O12 (CTHA) by introducing Ce3+ as the sensitizer. Owing to highly efficient energy transfer from Ce3+ to Tb3+, CTHA:Ce3+ combines advantages of the extra narrow green emission of Tb3+ peaking at 544 nm and the efficient broad excitation of Ce3+ covering the short-wavelength visible light from 380 to 450 nm. The color gamut of the prototype white light-emitting diode (LED) by using CTHA:Ce3+ as the green emitter can reach 95% (coverage ratio) of National Television Standards Committee (NTSC) space in Commission Internationale de L'Eclairage (CIE) 1931, indicating its great potential for LED (or laser diode)-based applications.
关键词energy transfer,lanthanides,luminescence,narrow-band emission,phosphors,core-shell nanoparticles,photoluminescence properties,thermal-stability,color,phosphor,green,luminescence,Materials Science,Optics
DOI10.1002/adom.201801677
收录类别SCI ; EI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/62929
专题中国科学院长春光学精密机械与物理研究所
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GB/T 7714
W.G.Xiao,X.F.Liu,J.H.Zhang,et al. Realizing Visible Light Excitation of Tb3+ via Highly Efficient Energy Transfer from Ce3+ for LED-Based Applications[J]. Advanced Optical Materials,2019,7(9):6.
APA W.G.Xiao,X.F.Liu,J.H.Zhang,&J.R.Qiu.(2019).Realizing Visible Light Excitation of Tb3+ via Highly Efficient Energy Transfer from Ce3+ for LED-Based Applications.Advanced Optical Materials,7(9),6.
MLA W.G.Xiao,et al."Realizing Visible Light Excitation of Tb3+ via Highly Efficient Energy Transfer from Ce3+ for LED-Based Applications".Advanced Optical Materials 7.9(2019):6.
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