Stoichiometric Lithium Niobate Crystals: Towards Identifiable Wireless Surface Acoustic Wave Sensors Operable up to 600$^\circ$C
| Autor: | Omar Elmazria, Jeremy Streque, Vincent Polewczyk, Edvard Kokanyan, Florian Bartoli, Sami Hage-Ali, Thierry Aubert, Ninel Kokanyan, Amine Taguett, Pascal Boulet |
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| Přispěvatelé: | Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS), CentraleSupélec-Université de Lorraine (UL), Institute for Physical Research of National Academy of Sciences of Armenia (IPR NAS RA), National Academy of Sciences of the Republic of Armenia [Yerevan] (NAS RA), IMPACT N4S, ANR-15-IDEX-0004,LUE,Isite LUE(2015) |
| Rok vydání: | 2019 |
| Předmět: |
Electromechanical coupling coefficient
Diffraction Materials science Surface acoustic waves Microsensors Lithium niobate FOS: Physical sciences Physics - Classical Physics Applied Physics (physics.app-ph) 01 natural sciences Resonator symbols.namesake chemistry.chemical_compound 0103 physical sciences Electrical and Electronic Engineering [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics 010301 acoustics Instrumentation [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] Condensed Matter - Materials Science business.industry 010401 analytical chemistry Surface acoustic wave Materials Science (cond-mat.mtrl-sci) Classical Physics (physics.class-ph) Physics - Applied Physics 0104 chemical sciences High-temperature sensors Stoichiometric lithium niobate chemistry symbols [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Optoelectronics Surface acoustic wave sensor Raman spectroscopy business Stoichiometry |
| Zdroj: | IEEE Sensors Letters IEEE Sensors Letters, IEEE, 2019, 3 (4), pp.1-4. ⟨10.1109/LSENS.2019.2908691⟩ |
| ISSN: | 2475-1472 |
| DOI: | 10.48550/arxiv.1907.09998 |
| Popis: | Wireless surface acoustic wave (SAW) sensors constitute a promising solution to some unsolved industrial sensing issues taking place at high temperatures. Currently, this technology enables wireless measurements up to 600-700$^\circ$C at best. However, the applicability of such sensors remains incomplete since they do not allow identification above 400$^\circ$C. The latter would require the use of a piezoelectric substrate providing a large electromechanical coupling coefficient K 2 , while being stable at high temperature. In this letter, we investigate the potentiality of stoichiometric lithium niobate (sLN) crystals for such purpose. Raman spectroscopy and X-ray diffraction attest that sLN crystals withstand high temperatures up to 800$^\circ$C, at least for several days. In situ measurements of sLN-based SAW resonators conducted up to 600$^\circ$C show that the K 2 of these crystals remains high and stable throughout the whole experiment, which is very promising for the future achievement of identifiable wireless high-temperature SAW sensors. |
| Databáze: | OpenAIRE |
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