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Fabrication and Characterization of Sensitive Room Temperature NO 2 Gas Sensor Based on ZnSnO 3 Thin Film
Author(s) -
Dabbabi Samar,
Nasr Tarek Ben,
Madouri Ali,
Cavanna Antonella,
GarciaLoureiro Antonio,
Kamoun Najoua
Publication year - 2019
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900205
Subject(s) - materials science , tin oxide , thin film , doping , band gap , transmittance , fabrication , scanning electron microscope , zinc , oxide , optoelectronics , deposition (geology) , tin , analytical chemistry (journal) , nanotechnology , metallurgy , composite material , medicine , paleontology , chemistry , alternative medicine , pathology , chromatography , sediment , biology
In this work, the simple and low cost fabrication of a new sensitive gas sensor ZnSnO 3 thin film is demonstrated by mixing doped oxide solutions based on tin doped zinc oxide (ZnO:Sn) and fluorine doped tin oxide (SnO 2 :F). The structural, morphological, and optical properties are characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), and spectrophotometry, respectively. Structural and morphological analysis confirmed the deposition of ZnSnO 3 film with porous surface using mixed doped oxide solutions. Optical studies reveal that ZnSnO 3 film exhibits a high transmittance (85%) and a wide band gap energy (3.5 eV), larger than that of ZnO:Sn film. Moreover, the several benefits of ZnSnO 3 film are confirmed by offering high sensitivity to NO 2 at room temperature.
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