Abstract
A mixed lanthanide metal-organic frameworks Ce1-xTbxFTPTC (x=0.042, 0.022) were synthesized by the simple solvothermal method and its temperature sensing was studied emphatically. The 2′-fluoro-[1,1′:4′,1′′-terphenyl]-3,3′′,5,5′′-tetracarboxylic acid (H4FTPTC) can efficiently sensitize Ce3+ and Tb3+ ions effectively, and it transfers the energy to Ce3+ and Tb3+ ions through resonance coupling. Accordingly, so Ce1-xTbxFTPTC (x=0.042, 0.022) can exhibit strong characteristic fluorescence of Ce3+ and Tb3+ ions. The Ce1-xTbxFTPTC (x=0.042, 0.022), as a proportional type luminescent thermometer shows excellent performance in the temperature range (313K-473K).
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