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Sensitization effect of Al co-doping on nd-related photoluminescence in TiO matrix

Japanese Journal of Applied Physics, ISSN: 1347-4065, Vol: 53, Issue: 6 SPEC. ISSUE
2014
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Conference Paper Description

Nd and Al co-doped anatase phase TiO thin films were prepared on silicon substrates by laser ablation and post annealing. These thin films exhibited intense light emissions due to intra-4f shell transitions in the Nd3+ ions at room temperature. Furthermore, the intensity and line shape of the Nd-related luminescence were affected by the Al co-doping. The emission dynamics measurements showed that a slight Al co-doping led to an improvement of the Nd-emission lifetime. Our results indicated that Al is an effective sensitizer of enhancing Nd3+-related emission in the TiO matrix. © 2014 The Japan Society of Applied Physics.

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