Temperature sensing in Tb3+/Eu3+-based tetranuclear silsesquioxane cages with tunable emission
authors Nigoghossian, K; Kulakova, AN; Felix, G; Khrustalev, VN; Shubina, ES; Long, J; Guari, Y; Sene, S; Carlos, LD; Bilyachenko, AN; Larionova, J
nationality International
journal RSC ADVANCES
keywords ELECTRONIC-ENERGY LEVELS; LANTHANIDE AQUO IONS; PHOTOLUMINESCENCE PROPERTIES; COORDINATION POLYMERS; LUMINESCENT; THERMOMETRY; EUROPIUM; TERBIUM
abstract New luminescent cage-like tetranuclear silsesquioxanes [NEt4][(Ph4Si4O8)(2)(Tb3Eu)(NO3)(4)(OH)(EtOH)(3)(H2O)]center dot 4(EtOH) (1) and [NEt4](2)[(Ph4Si4O8)(2)(Tb2Eu2)(NO3)(6)(EtOH)(2)(MeCN)(2)]center dot 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 degrees C with excellent linearity (R-2 = 0.9990) and repeatability (>95%). The thermometer performance was evidenced by the maximum relative sensitivity of 0.63% degrees C-1 achieved at 68 degrees C.
publisher ROYAL SOC CHEMISTRY
isbn 2046-2069
year published 2021
volume 11
issue 55
beginning page 34735
ending page 34741
digital object identifier (doi) 10.1039/d1ra06755a
web of science category 7
subject category Chemistry, Multidisciplinary
unique article identifier WOS:000711540500001
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