A low-temperature multilayered thin film potentiometric oxygen sensor (RE)Pt|Cu,Cu2O|YSZ|O2,Pt(WE) on (100) SrTiO3 substrate

Performance of a multilayered thin film-based electrochemical sensor (RE)|Pt|Cu,Cu2O|YSZ|O2,Pt(WE) grown on (100) SrTiO3 (10 mm × 10 mm × 0.5 mm) using pulsed laser deposition is demonstrated for sensing oxygen from 10 to 1000 ppm in an inert ambient. The overall thickness of the device is 1 µm, whi...

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Bibliographic Details
Published in:Surfaces and interfaces 2024-08, Vol.51, p.104613, Article 104613
Main Authors: Ravindranath, Nair Afijith, Prabhu, E., Pandian, Ramanathaswamy, Natarajan, Gomathi, Bahuguna, Ashok, S, Abhaya, Gnanasekar, K.I.
Format: Article
Language:English
Subjects:
Impedance spectroscopy
Positron annihilation spectroscopy
Pulsed laser deposition
Secondary ion mass spectrometer
YSZ-based thin film oxygen sensors
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Summary:Performance of a multilayered thin film-based electrochemical sensor (RE)|Pt|Cu,Cu2O|YSZ|O2,Pt(WE) grown on (100) SrTiO3 (10 mm × 10 mm × 0.5 mm) using pulsed laser deposition is demonstrated for sensing oxygen from 10 to 1000 ppm in an inert ambient. The overall thickness of the device is 1 µm, which is demonstrated to operate at 673 K with a sensitivity of 20 mV/decade and offers the scope for reduction in power consumption. Impedance studies show that the electrode polarization across the working YSZ/Pt interface plays a key role in dictating the working temperature of the sensor. [Display omitted]
ISSN:2468-0230
2468-0230
DOI:10.1016/j.surfin.2024.104613