Fabrication of Fe-doped WO3 films for NO2 sensing at lower operating temperature

•Fe-doped nanostructured WO3 films were synthesized using DC sputtering at RT.•The number of film defects was found to increase with increasing Fe concentrations.•The optical bandgap of the film (3.30eV) decreases to 3.15eV after doped with 2.6at% Fe.•The gas sensing of the 2.6at% Fe film to 3–12ppm...

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Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2015-12, Vol.221, p.393-400
Hauptverfasser:	Tesfamichael, T., Piloto, C., Arita, M., Bell, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Crystal defects Fe-doping Gas sensors Glass Low operating temperature Nanostructure thin films Nitrogen dioxide NO2 gas sensing Operating temperature Optical band gap Optical properties Tungsten oxide Tungsten oxides
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