TY - JOUR
T1 - 1.54 and 1.75 μm infrared luminescence of Y 2O 3:Er 3+
AU - Xia Zhang, Xiao
AU - Fai Li, King
AU - CHEAH, Kok Wai
AU - Zhou, Xianju
AU - Tanner, Peter A.
N1 - Funding Information:
Financial support for this study was provided by the Hong Kong University Grants Council Research Grant HKBU/2154/03E and the City University Strategic Research Grant 7001459.
PY - 2004/12/21
Y1 - 2004/12/21
N2 - A new 1.75 μm infrared emission transition of Y 2O 3:Er 3+ is assigned to the 4S 3/2 → 4I 9/2 transition of Er 3+ ions situated at the C 2 sites of cubic RE 2O 3 (RE = Y, Gd, Lu). The intensities of features in the 1.54 μm 4I 15/2- 4I 13/2 absorption transition due to Er 3+ at S 6 and C 2 sites are consistent with the site occupation ratio and the relative magnetic dipole-electric dipole intensity contributions of Er 3+ at the different sites. The 1.54 μm emission lines are predominantly from Er 3+ ions at C 2 sites. The different behaviours of the emission intensities 1.75 and 1.54 μm groups with change in Er 3+ dopant ion concentration, preparation technique, Yb 3+ co-doping, temperature change and different excitation line are rationalized.
AB - A new 1.75 μm infrared emission transition of Y 2O 3:Er 3+ is assigned to the 4S 3/2 → 4I 9/2 transition of Er 3+ ions situated at the C 2 sites of cubic RE 2O 3 (RE = Y, Gd, Lu). The intensities of features in the 1.54 μm 4I 15/2- 4I 13/2 absorption transition due to Er 3+ at S 6 and C 2 sites are consistent with the site occupation ratio and the relative magnetic dipole-electric dipole intensity contributions of Er 3+ at the different sites. The 1.54 μm emission lines are predominantly from Er 3+ ions at C 2 sites. The different behaviours of the emission intensities 1.75 and 1.54 μm groups with change in Er 3+ dopant ion concentration, preparation technique, Yb 3+ co-doping, temperature change and different excitation line are rationalized.
UR - http://www.scopus.com/inward/record.url?scp=10344230413&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2004.10.128
DO - 10.1016/j.cplett.2004.10.128
M3 - Journal article
AN - SCOPUS:10344230413
SN - 0009-2614
VL - 400
SP - 331
EP - 335
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -