Title :
The upconversion mechanism of Tb3+ complex containing N,N\´,N"-tris(2-hydrobenzamido) triethylamine
Author :
Luo, L. ; Lai, Winnie Po-Wan ; Wong, Wing-Tak ; Li, K.F. ; Cheah, K.W.
Author_Institution :
Dept. of Chem., Hong Kong Univ., China
Abstract :
Tb3+ complex containing N,N\´,N"-tris(2-hydroxybenzamido) triethylamine was synthesized and its indirect upconversion sensitization luminescence was studied using two-photon excitation method. The results indicate there exist a phonon-assisted and a resonant energy transfer processes in different excitation range. Based on the result, an upconversion mechanism was proposed. Its efficiency was 1% at a pumping energy of 1.5 mJ under nanosecond pulse excitation, suggesting its potential use in display and probing.
Keywords :
display devices; high-speed optical techniques; optical pumping; organometallic compounds; phonons; photochemistry; photoluminescence; photons; probes; resonant states; terbium compounds; 1.5 mJ; N,N\´,N"-tris(2-hydrobenzamido) triethylamine synthesis; Tb3+ complex; displays; indirect upconversion sensitization luminescence; nanosecond pulse excitation; phonon-assisted energy transfer process; probes; pumping energy; resonant energy transfer process; two-photon excitation method; Absorption; Energy exchange; Fluorescence; Luminescence; Optical microscopy; Optical pumping; Optical sensors; Resonance; Stimulated emission; Temperature;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274704
