Temperature sensing and in vivo imaging by molybdenum sensitized visible upconversion luminescence of rare-earth oxides.

Dong, Bin; Cao, Baosheng; He, Yangyang; Liu, Zhuang; Li, Zhipeng; Feng, Zhiqing · Adv Mater · 2012

basic_science · Level V

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Abstract

A novel high excited state energy transfer pathway to overcome the phonon quenching effect in rare-earth (RE) oxide upconversion (UC) materials is reported. In Er(Tm)-Yb oxide systems, an extraordinary enhancement of UC luminescence efficiency with four orders of magnitude is realized by Mo co-doping. The RE oxides with significant UC efficiency are successfully utilized for temperature sensing and in vivo imaging.

Medical subject headings