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Article Dans Une Revue RSC Advances Année : 2021

Temperature sensing in Tb 3+ /Eu 3+ -based tetranuclear silsesquioxane cages with tunable emission

Luís Carlos

Résumé

New luminescent cage-like tetranuclear silsesquioxanes [NEt4][(Ph4Si4O8)2(Tb3Eu)(NO3)4(OH)(EtOH)3(H2O)]·4(EtOH) (1) and [NEt4]2[(Ph4Si4O8)2(Tb2Eu2)(NO3)6(EtOH)2(MeCN)2]·4(MeCN) (2) present a tunable thermosensitive Tb3+-to-Eu3+ energy transfer driven by Tb3+ and Eu3+ emission and may be used as temperature sensors operating in the range 41–100 °C with excellent linearity (R2 = 0.9990) and repeatability (>95%). The thermometer performance was evidenced by the maximum relative sensitivity of 0.63% °C−1 achieved at 68 °C.
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hal-03426898 , version 1 (31-05-2022)

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Karina Nigoghossian, Alena Kulakova, Gautier Félix, Victor Khrustalev, Elena Shubina, et al.. Temperature sensing in Tb 3+ /Eu 3+ -based tetranuclear silsesquioxane cages with tunable emission. RSC Advances, 2021, 11 (55), pp.34735-34741. ⟨10.1039/d1ra06755a⟩. ⟨hal-03426898⟩
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