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The importance of non-invasive thermometry based on lifetime fluorescence in biomedical applications imposes the research and development of new phosphors. In this work, sub-tissue lifetime thermal sensing of La2O3: Ln3+ nanomaterials (Ln=Tm, Er and Yb) has been studied. Two oxides are investigated: Er3+, Tm3+, Yb3+ tri-doped La2O3 and Tm3+, Yb3+ co-doped La2O3. We have focused on the lifetime of...
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