Browse > Article

Luminescence properties of a new $Tb^{3+}$ ion activated long persistent phosphor  

Park, Byeong-Seok (Department of Gemological Engineering, dongshin university)
Choi, Jong-Geon (Department of Gemological Engineering, dongshin university)
Abstract
A new long persistent phosphors of $CaZrO_3$ was synthesized at high temperature with weak reduction atmosphere by a traditional solid state reaction method. Photoluminescence spectra analysis showed that the $CaZrO_3$ doped with $Tb^{3+}$ emitted green-yellow emission caused by the energy level transition from the $^5D_3$ and $^5D_4$ to $^7F_1{\sim}^7F_6$. The main emission spectra of 542 nm peak by the $^5D_4{\rightarrow}^7F_5$ transition was revealed through synthesizing at high temperature in $N_2$ gas atmosphere. The afterglow emission spectra of $CaZrO_3:Tb^{3+}$ long persistent phosphores arise at 546 nm peak of narrow range. After the 254 nm ultraviolet light excitation source was switched off, the green-yellow long persistent phosphor can be observed which could last for 8 h in the limit of light perception of dark-adapted human eyes ($0.32\;mcd/m^2$).
Keywords
Luminescence; $CaZrO_3$; $Tb^{3+}$; Electron trap center; Afterglow;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 C. Chang and D. Mao, "Long lasting phosphorescence of $Sr_4Al_{14}O_{25}$ : $Eu ^{2+}$ , $Dy ^{3+}$ thin films by magnetron sputtering", Thin Sol. Fil. 460 (2004) 48   DOI   ScienceOn
2 Y. Kamiyanagi, M. Kitaura and M. Kaneyoshi, "Temperature dependence of long-lasting afterglow in $SrAl_2O_4$ : Eu, Dy phosphor", J. Lumin. 122-123 (2007) 509-511   DOI   ScienceOn
3 R. Pang, C. Li, S. Zhang and Q. Su, "Luminescent properties of a new blue long-lasting phosphor $Ca_2P_2O_7$ : $Eu^{2+}$, $Y^{3+}$", Mat. Chem. Phy. 113 (2009) 215   DOI   ScienceOn
4 B.S. Park and J.K. Choi, "Synthesis and luminescence properties of $Er^{3+}$ doped $CaZrO_3 $ long persistent phosphors", J. Ko. Cry. Grow. Cry. Tech. 18(1) (2008) 27
5 N.L. Ross and T.D. Chaplin, "Compressibility of $CaZrO_3$ perovskite: Comparison with Ca-oxide perovskites", J. Solid Sta. Chem. 172 (2003) 124   DOI   ScienceOn
6 K.H. Hwang and J.K. Choi, "A study on the luminescence characterization of red long persistent phosphors by the $B_2O_3$ addition", J. Ko. Cry. Grow. Cry. Tech. 18(1) (2008) 22.
7 Y. Xu and D. Chen, 'Combustion synthesis and photoluminescence of $Sr_2MgSi_2O_7$ : Eu, Dy long lasting phosphor nanoparticles', Cera. Inter. 34 (2007) 2117   DOI   ScienceOn
8 R. Pang, C. Li, L. Jiang and Q. Su, "Blue long lasting phosphorescence of Tm$^{3+}$ in zinc pyrophosphate phosphor", J. All. Com. 471 (2008) 364   DOI   ScienceOn
9 K. Kato, I. Tautai, T. Kamimura, F. Kaneko, K. Shinbo, M. Ohta and T. Kawakami, "Thermoluminescence properties of $SrAl_2O_4$ : Eu sputtered films with long phosphorescence", J. Lumi. 82 (1999) 213   DOI   ScienceOn
10 D. Jia, "Charging curves and excitation spectrum of long persistent phosphor $SrAl_2O_4$ : $Eu^{2+}$, $Dy^{3+}$", Opt. Mat. 22 (2003) 65   DOI   ScienceOn
11 B.S. Park and J.K. Choi, "Synthesis and luminescent properties of a new green $CaZrO_3$ : $Ho^{3+}$ long persistent phosphors", J. Ko. Cry. Grow. Cry. Tech. 18(3) (2008) 109
12 Z. Wang, Y. Wang, P. Zhang, X. Fan and G. Qian, "Tunable afterglow color in $Eu^{2+}$, and $Dy^{3+}$ co-activated alkaline earth feldspar solid solutions phosphors", J. Lumi. 124 (2007) 140   DOI   ScienceOn
13 H. Yang and Y.S. Kim, "Energy transfer-based spectral properties of Tb-, Pr-, or Sm-codoped YAG : Ce nanocrystalline phosphors", J. Lumi. 128 (2008) 1572   DOI   ScienceOn
14 Shannon, "Shannon ionic radii", Acta Cryst. 32A (1976) 751
15 T. Aitasalo, J. Hölsä, H. Jungner, M. Lastusaari and J. Niittykoski, "Mechanisms of persistent luminescence in $Eu ^{2+}$ , $RE ^{3+}$ doped alkaline earth aluminates", J. Lumin. 94 (2001) 60   DOI   ScienceOn