Open AccessOptical, Structural and Gas Sensing Studies on Tin Oxide Thin Films
Author(s) -
Rajesh Kumar,
Swati Chawla
Publication year - 2019
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2019.22054
Subject(s) - tin oxide , chemistry , thin film , tin , hydrogen , hydrogen sulphide , evaporation , gas detector , hydrocarbon , copper , oxide , copper oxide , analytical chemistry (journal) , chemical engineering , inorganic chemistry , nanotechnology , materials science , sulfur , environmental chemistry , optics , organic chemistry , physics , engineering , detector , thermodynamics
In this paper, pure and copper doped tin oxide thin films were grown on glass substrates by thermal evaporation technique for gas sensing applications. Optical, structural and gas sensing properties were investigated for their application for gas sensing applications. The thickness of the samples was kept about 300 nm. The films were annealed at 400 ºC for 4 h in the presence of air. The gas sensing studies were carried out for hydrogen sulphide and ethanol gas. The sensitivity was quite high for hydrogen sulphide gas but little sensitivity towards hydrocarbon gases.