Sensitized Emission in Ln3+-Doped TiO2 Semiconductor Nanoparticles


  • Jan W. Stouwdam Dr.,

    1. Laboratories of Supramolecular Chemistry and Technology & MESA+ Research Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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  • Frank C. J. M. van Veggel Professor

    1. Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria BC, V8W 3 V6, Canada, Fax: (+1) 250-472-5193
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  • Ln=Eu, Yb, Nd, and Er


original image

The doping of lanthanide ions in semiconductor TiO2 nanoparticles is studied. The presence of the TiO2 absorption band in the excitation spectrum of the lanthanide (see graphic; excitation and emission) proves the existence of energy transfer from the host material to the lanthanide ion. Energy transfer to several lanthanide ions occurs, including to Er3+, Nd3+, Yb3+, and Eu3+.