Optical properties and switching behavior in Gd2O3:Er3+ nanophosphor
作者： S. K. Singh , K. Kumar , S. B. Rai
DOI: 10.1063/1.3259370
关键词:
摘要: The upconversion (UC) efficient Gd2O3:Er3+ nanophosphor powder has been synthesized through the combustion route using urea as a reducing agent. UC studies have carried out 532 nm excitation, and samples show intense emission bands in ultraviolet (340 383 nm), blue (411, 458, 472, 491 green (523 nm) regions of spectrum. Downconversion are also observed (550 red (672 regions. pump power dependence intensity shows that two photons involved creating one upconverted photon excited state absorption is excitation mechanism. stimulated switchinglike behavior intensities some bands. Phonon assisted energy migration from H211/2 (S43/2) level to upper F45/2 F47/2 levels, opening up new channel for at certain input power, thought be probable cause plasmalike continuum ...
scitation.org
harvard.edu
aip.org
sci-hub.se 参考文章(27)
D. Dosev, I. M. Kennedy, M. Godlewski, I. Gryczynski, K. Tomsia, E. M. Goldys, Fluorescence upconversion in Sm-doped Gd2O3 Applied Physics Letters. ,vol. 88, pp. 011906- ,(2006) , 10.1063/1.2161400
Fuxi Gan, Jie Wang, Yihong Chen, UV upconversion luminescence of Nd3+ and Er3+ ions in fluorozirconate glasses Journal of Non-crystalline Solids. ,vol. 213, pp. 261- 265 ,(1997) , 10.1016/S0022-3093(97)00069-0
G. Wakefield, E. Holland, P. J. Dobson, J. L. Hutchison, Luminescence Properties of Nanocrystalline Y2O3:Eu Advanced Materials. ,vol. 13, pp. 1557- 1560 ,(2001) , 10.1002/1521-4095(200110)13:20<1557::AID-ADMA1557>3.0.CO;2-W
Huailiang Xu, Zhankui Jiang, Ultraviolet and violet upconversion luminescence in Er 3+ -doped yttrium aluminum garnet crystals Physical Review B. ,vol. 66, pp. 035103- ,(2002) , 10.1103/PHYSREVB.66.035103
G.K. Liu, X.Y. Chen, H.Z. Zhuang, S. Li, R.S. Niedbala, Confinement of electron-phonon interaction on luminescence dynamics in nanophosphors of Er3+ :Y2O2S Journal of Solid State Chemistry. ,vol. 171, pp. 123- 132 ,(2003) , 10.1016/S0022-4596(02)00195-0
C. Feldmann, T. Jüstel, C.R. Ronda, P.J. Schmidt, Inorganic Luminescent Materials: 100 Years of Research and Application Advanced Functional Materials. ,vol. 13, pp. 511- 516 ,(2003) , 10.1002/ADFM.200301005
Sunil Kumar Singh, Kaushal Kumar, S.B. Rai, Er3+/Yb3+ codoped Gd2O3 nano-phosphor for optical thermometry Sensors and Actuators A-physical. ,vol. 149, pp. 16- 20 ,(2009) , 10.1016/J.SNA.2008.09.019
Vineet Kumar Rai, S.B. Rai, A comparative study of FIR and FL based temperature sensing schemes : an example of Pr3+ Applied Physics B. ,vol. 87, pp. 323- 325 ,(2007) , 10.1007/S00340-007-2592-Z
N. Joffin, J. Dexpert-Ghys, M. Verelst, G. Baret, A. Garcia, The influence of microstructure on luminescent properties of Y2O3:Eu prepared by spray pyrolysis Journal of Luminescence. ,vol. 113, pp. 249- 257 ,(2005) , 10.1016/J.JLUMIN.2004.10.021
D CHATTERJEE, A RUFAIHAH, Y ZHANG, Upconversion fluorescence imaging of cells and small animals using lanthanide doped nanocrystals. Biomaterials. ,vol. 29, pp. 937- 943 ,(2008) , 10.1016/J.BIOMATERIALS.2007.10.051