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Temperature sensing in Tb³⁺/Eu³⁺-based tetranuclear silsesquioxane cages with tunable emission.

ABSTRACT: 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 (R ² = 0.9990) and repeatability (>95%). The thermometer performance was evidenced by the maximum relative sensitivity of 0.63% °C^-1 achieved at 68 °C.

SUBMITTER: Nigoghossian K

PROVIDER: S-EPMC9042691 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Temperature sensing in Tb3+/Eu3+-based tetranuclear silsesquioxane cages with tunable emission.

Nigoghossian Karina K Kulakova Alena N AN Félix Gautier G Khrustalev Victor N VN Shubina Elena S ES Long Jérôme J Guari Yannick Y Sene Saad S Carlos Luís D LD Bilyachenko Alexey N AN Larionova Joulia J

RSC advances 20211027 55

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 t ...[more]

PMID: 35494783

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