TY - GEN
T1 - Propane gas sensing properties of SnO2 and SnO2:Ag thin films prepared by sol-gel technique
AU - Tirado Guerra, S.
PY - 2010
Y1 - 2010
N2 - Both SnO2 and SnO2:Ag thin films were fabricated by the sol-gel process and dip-coating technique. SnCl4·5H 2O was used as a precursor of tin to prepare a 0.2M solution with 2-methoxyethanol and monoethanolamine as solvents. From AgNO3 a 0.012M solution in ethanol was prepared, from where the Ag was used as catalyst, which was incorporated superficially to SnO2 film grown on soda-lime substrate. Two series of samples (A and B) about 150 and 300 nm in thickness were prepared and studied. Several layers of Ag as catalyst on the surface of SnO2 films were applied. The films were characterized in structure (RXD), morphology (SEM and AFM) and EDX, electrical and optical properties (UV-vis). The sensing properties of films to the propane at, 0, 1, 5, 50, 100, 200, 300, 400 and 500 ppm gas concentrations were tested in sensors operating at 23, 100, 200 and 300°C. Results for a selection of sensors are presented in this paper.
AB - Both SnO2 and SnO2:Ag thin films were fabricated by the sol-gel process and dip-coating technique. SnCl4·5H 2O was used as a precursor of tin to prepare a 0.2M solution with 2-methoxyethanol and monoethanolamine as solvents. From AgNO3 a 0.012M solution in ethanol was prepared, from where the Ag was used as catalyst, which was incorporated superficially to SnO2 film grown on soda-lime substrate. Two series of samples (A and B) about 150 and 300 nm in thickness were prepared and studied. Several layers of Ag as catalyst on the surface of SnO2 films were applied. The films were characterized in structure (RXD), morphology (SEM and AFM) and EDX, electrical and optical properties (UV-vis). The sensing properties of films to the propane at, 0, 1, 5, 50, 100, 200, 300, 400 and 500 ppm gas concentrations were tested in sensors operating at 23, 100, 200 and 300°C. Results for a selection of sensors are presented in this paper.
KW - Ag
KW - Oxide
KW - Sensors
KW - Sn
KW - Sol-gel
UR - http://www.scopus.com/inward/record.url?scp=79952541959&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:79952541959
SN - 9781605112527
T3 - Materials Research Society Symposium Proceedings
SP - 151
EP - 158
BT - Structural and Chemical Characterization of Metals, Alloys and Compounds
T2 - 19th International Materials Research Congress 2010
Y2 - 15 August 2010 through 19 August 2010
ER -