Sensitized emission from lanthanide-doped nanoparticles embedded in a semiconductor sol-gel thin film.
In(2)O(3) sol-gel thin films made with LaF(3):Ln(3+) (Ln=Er, Nd, and Eu) nanoparticles were prepared and showed sensitized emission of the lanthanide ions after In(2)O(3) matrix excitation. The excitation spectra showed an In(2)O(3) absorption band in addition to the excitation peaks of the lanthanide ions, clearly demonstrating that there is energy transfer from the In(2)O(3) matrix to Ln(3+) (Er(3+), Nd(3+), and Eu(3+)). Similarly, HfO(2) and ZrO(2) sol-gel thin films made with LaF(3):Ln(3+) nanoparticles also showed energy transfer from the semiconductor matrix to the lanthanide ions.
Sivakumar
Sri
S
University of Victoria, Department of Chemistry, P.O. Box 3065, Victoria, British Columbia, V8W 3V6, Canada.
van Veggel
Frank C J M
FC
Raudsepp
Mati
M