TY - JOUR
T1 - Environmental monitoring field tests using screen-printed thick-film sensors based on semiconducting oxides
AU - Traversa, Enrico
AU - Sadaoka, Yoshihiko
AU - Carotta, Maria Cristina
AU - Martinelli, Giuliano
N1 - Funding Information:
The present work was partly supported by the National Research Council of Italy (CNR), under the auspices of the Targeted Project “MADESS 2”, and partly by Grant-in-Aids for Scientific Research Nos. 1065081 and 10045045 from the Ministry of Education, Science and Culture of Japan. The authors wish to thank ARPA (sezione di Ferrara) for the useful cooperation and discussion on the innovative monitoring station. Dr. Maria Cristina Casale (CISE, Segrate, Milano) is gratefully acknowledged for the preparation of the titania powders.
PY - 2000/6/30
Y1 - 2000/6/30
N2 - SnO2, TiO2, In2O3, LaFeO3, and SmFeO3 thick films have been prepared by screen-printing technology on alumina substrates with comb-type Au electrodes, starting either from commercial or laboratory-synthesized powders. An array of thick-film prototype sensors has been placed beside a conventional station for environmental monitoring. Field tests have been performed by measuring the change in conductivity of the thick films exposed to real atmosphere. Their electrical response has been compared with the results of the analytical instruments for environmental monitoring, approved by the international standards. The same trend was observed for both systems, with very promising results, when nanostructured oxides have been used for the preparation of the thick films. This allows us to consider as feasible the use of these sensors for cheap, innovative stations for air quality control.
AB - SnO2, TiO2, In2O3, LaFeO3, and SmFeO3 thick films have been prepared by screen-printing technology on alumina substrates with comb-type Au electrodes, starting either from commercial or laboratory-synthesized powders. An array of thick-film prototype sensors has been placed beside a conventional station for environmental monitoring. Field tests have been performed by measuring the change in conductivity of the thick films exposed to real atmosphere. Their electrical response has been compared with the results of the analytical instruments for environmental monitoring, approved by the international standards. The same trend was observed for both systems, with very promising results, when nanostructured oxides have been used for the preparation of the thick films. This allows us to consider as feasible the use of these sensors for cheap, innovative stations for air quality control.
UR - http://www.scopus.com/inward/record.url?scp=0034733348&partnerID=8YFLogxK
U2 - 10.1016/S0925-4005(99)00317-2
DO - 10.1016/S0925-4005(99)00317-2
M3 - Conference article
AN - SCOPUS:0034733348
SN - 0925-4005
VL - 65
SP - 181
EP - 185
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
IS - 1
T2 - IMCS-7: 7th International Meeting on Chemical Sensors
Y2 - 27 July 1998 through 30 July 1998
ER -