Layered Gadolinium-Europium-Terbium Hydroxides Sensitised with 4-Sulfobenzoate as All Solid-State Luminescent Thermometers

Layered Gadolinium-Europium-Terbium Hydroxides Sensitised with 4-Sulfobenzoate as All Solid-State Luminescent Thermometers

Ternary layered gadolinium-europium-terbium basic chlorides were synthesised using a facile hydrothermal-microwave technique. A continuous series of solid solutions was obtained in a full range of rare earth concentrations. To sensitise the luminescence of Eu3+ and Tb3+, a 4-sulfobenzoate anion was...

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Bibliographic Details
Published in:Inorganics Vol. 10; no. 12; p. 233
Main Authors: Rodina, Anfisa A., Yapryntsev, Alexey D., Abdusatorov, Bakhodur A., Belova, Ekaterina V., Baranchikov, Alexander E., Ivanov, Vladimir K.
Format: Journal Article
Language:English
Published: Basel MDPI AG 01-12-2022
Subjects:
Analysis
Chemical synthesis
Color
Europium
Gadolinium
High temperature
Hydrocarbons
Hydroxides
intercalation
Ion exchange
layered rare earth hydroxides
Luminescence
luminescent thermometry
Methods
Optical properties
Sensors
Solid solutions
Structure
sulfobenzoate
Terbium
Thermometers
Trace elements
Russia
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Summary:Ternary layered gadolinium-europium-terbium basic chlorides were synthesised using a facile hydrothermal-microwave technique. A continuous series of solid solutions was obtained in a full range of rare earth concentrations. To sensitise the luminescence of Eu3+ and Tb3+, a 4-sulfobenzoate anion was intercalated in the ternary layered rare earth hydroxides using one of two methods—a high-temperature ion exchange or a single-stage synthesis. The luminescent colour of the materials was governed by the gadolinium content: at low and medium gadolinium concentrations (0–70%), layered Gd-Eu-Tb basic sulfobenzoate exhibited a bright red europium luminescence; at high gadolinium content (70–90%), a bright green terbium luminescence was observed. The colour coordinates of layered Gd-Eu-Tb basic sulfobenzoate luminescence depended on the temperature in the physiological range (20–50 °C). The relative thermal sensitivity of the obtained materials was up to 2.9%·K−1.
ISSN:2304-6740
2304-6740
DOI:10.3390/inorganics10120233