TY - JOUR
T1 - Luminescence temperature and pressure studies of Zn2SiO 4 phosphors doped with Mn2+ and Eu3+ ions
AU - Su, Fuhai
AU - Ma, Baoshan
AU - Ding, Kun
AU - Li, Guohua
AU - Wang, Shaopeng
AU - Chen, Wei
AU - Joly, Alan G.
AU - McCready, David E.
PY - 2006/1
Y1 - 2006/1
N2 - Zn2SiO4:Mn2+, Zn2SiO 4:Eu3+ and Zn2SiO4:Mn 2+,Eu3+ phosphors were prepared by a sol-gel process and their luminescence spectra were investigated. The emission bands from intra-ion transitions of Mn2+ and Eu3+ samples were studied as a function of pressure. The pressure coefficient of Mn2+ emission was found to be -25.3±0.5 and -28.5±0.9 meV/GPa for Zn 2SiO4:Mn2+ and Zn2SiO 4:Mn2+,Eu3+, respectively. The Eu3+ emission shows only weak pressure dependence. The pressure dependences of the Mn2+ and Eu3+ emissions in Zn2SiO 4:Mn2+,Eu3+ are slightly different from that in Zn2SiO4:Mn2+ and Zn2SiO 4:Eu3+ samples, which can be attributed to the co-doping of Mn2+ and Eu3+ ions. The Mn2+ emission in the two samples, however, exhibits analogous temperature dependence and similar luminescence lifetimes, indicating no energy transfer from Mn2+ to Eu3+ occurs.
AB - Zn2SiO4:Mn2+, Zn2SiO 4:Eu3+ and Zn2SiO4:Mn 2+,Eu3+ phosphors were prepared by a sol-gel process and their luminescence spectra were investigated. The emission bands from intra-ion transitions of Mn2+ and Eu3+ samples were studied as a function of pressure. The pressure coefficient of Mn2+ emission was found to be -25.3±0.5 and -28.5±0.9 meV/GPa for Zn 2SiO4:Mn2+ and Zn2SiO 4:Mn2+,Eu3+, respectively. The Eu3+ emission shows only weak pressure dependence. The pressure dependences of the Mn2+ and Eu3+ emissions in Zn2SiO 4:Mn2+,Eu3+ are slightly different from that in Zn2SiO4:Mn2+ and Zn2SiO 4:Eu3+ samples, which can be attributed to the co-doping of Mn2+ and Eu3+ ions. The Mn2+ emission in the two samples, however, exhibits analogous temperature dependence and similar luminescence lifetimes, indicating no energy transfer from Mn2+ to Eu3+ occurs.
KW - Crystal field
KW - Eu
KW - Hydrostatic pressures
KW - Luminescence
KW - Mn
KW - ZnsiO
UR - http://www.scopus.com/inward/record.url?scp=27444442200&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2005.03.010
DO - 10.1016/j.jlumin.2005.03.010
M3 - Article
AN - SCOPUS:27444442200
SN - 0022-2313
VL - 116
SP - 117
EP - 126
JO - Journal of Luminescence
JF - Journal of Luminescence
IS - 1-2
ER -