ZHANG Ji-sen, ZHANG Li-guo, REN Jian-yue, ZHANG Li-ping, LV Shao-zhe. Dependent of Upconversed Emission on Excited Power in Yb<sup>3+</sup>-Er<sup>3+</sup>-codoped Fluorides[J]. Chinese Journal of Luminescence, 2012,(6): 571-575
ZHANG Ji-sen, ZHANG Li-guo, REN Jian-yue, ZHANG Li-ping, LV Shao-zhe. Dependent of Upconversed Emission on Excited Power in Yb<sup>3+</sup>-Er<sup>3+</sup>-codoped Fluorides[J]. Chinese Journal of Luminescence, 2012,(6): 571-575 DOI: 10.3788/fgxb20123306.0571.
-codoped fluoride samples were synthesized by using solid-state reaction method. Upconversion emission characters were investingated under 980 nm laser diode excitation. It was found that the upconversion spectra depended on excited power when Yb
3+
-doped content was more than 10%. According to various concentration of rear-earth ions
an upconversion process with time-delayed sequential two-phonon energy tansfer was proposed
which can be able to explain the phenomenon satisfactorily.
Auzel F. Upconversion and anti-Stokes processes with f and d ions in solids [J]. Chem. Rev., 2004, 104(1):139-173.
Balda R, Garcia-Adeva A J, Voda M, et al. Upconversion processes in Er3+-doped KPb2Cl5 [J]. Phys. Rev. B, 2004, 69(20):205203-1-10.
Downing E, Hesselink L, Ralston J, et al. A three-color, solid-state, three-dimensional display [J]. Science, 1996, 273(5279):1185-1189.
Sanders S, Waarts R G, Mehuys D G, et al. Laser diode pumped 106 nm blue upconversion fiber laser [J]. Appl. Phys. Lett., 1995, 67(13):1815-1817.
Shalav A, Richards B S, Trupke T, et al. Application of NaYF4:Er3+ up-converting phosphors for enhanced near-infrared silicon solar cell response [J]. Appl. Phys. Lett., 2005, 86(1):013505-1-3.
Cao C Y, Qin W P, Zhang J S, et al. Ultraviolet upconversion emissions of Gd3+ [J]. Opt. Lett., 2008, 33(8):857-859.
Qin W P, Cao C Y, Zhang J S, et al. Ultraviolet upconversion fluorescence from 6DJ of Gd3+ induced by 980 nm excitation [J]. Opt. Lett., 2008, 33(8):2167-2169.
Thrash R J, Johnson L F. Upconversion laser emission from Yb3+-sensitized Tm3+ in BaY2F8 [J]. J. Opt. Soc. Am. B, 1994, 11(5):881-885.
Riedener T, Güdel H U, Valley G C, et al. Infrared to visible upconversion in Cs3Yb2Cl9:Tm3+ [J]. J. Lumin., 1995, 63(5-6):327-337.
Chen X B, Song Z F. Study on six-photon and five-photon ultraviolet upconversion luminescence [J]. J. Opt. Soc. Am. B, 2007, 24(4):965-971.
Chen G Y, Somesfalean G, Zhang Z G, et al. Ultraviolet upconversion fluorescence in rare-earth-ion-doped Y2O3 induced by infrared diode laser excitation [J]. Opt. Lett., 2007, 32(1):87-89.
Zhang J S, Qin W Q, Zhao D, et al. Spectral variations and energy processes on both Er3+ ion concentration and excitation densities in Yb3+-Er3+ codoped LaF3 materials [J]. J. Lumin., 2007, 122-123:506-508.
Zhang J S, Qin W Q, Zhao D, et al. Energy transfer processes on both Er3+ ion concentration and excitation densities in Yb3+-Er3+ codoped LaF3 matrix [J]. J. Lumin., 2006, 119-120:341-345.
Zhang Jisen, Zhang Liguo, Ren Jianyue, et al. Energy transition processes between Yb3+-Tm3+-Gd3+in Yb3+, Tm3+ and Gd3+ codoped fluoride nanocrystal [J]. Chin. J. Lumin.(发光学报), 2011, 32(11):1093-1098 (in Chinese).
Chen Huan, Chuai Xiaohong, Wang Lili, et al. Synthesis and optical properties of water soluble upconversion NaYF4:Yb, Tm nanoparticles [J]. Chin. J. Lumin.(发光学报), 2010, 31(4):538-542 (in Chinese).
Krämer K W, Biner D, Frei G, et al. Hexagonal sodium yttrium fluoride based green and blue emitting upconversion phosphors [J]. Chem. Mater. 2004, 16(7):1244-1251.