Title :
Nanostructured SnO2 film for use as electrode material in sensors
Author :
Tolnai, Gy ; Nagy, P. ; Tarsiche, I. ; Morar, I. ; Roman, C. ; Kormos, F. ; Kalman, E.
Author_Institution :
Dept. of Surface Modification & Nanostructures, Hungarian Acad. of Sci., Budapest, Hungary
Abstract :
Nanostructured Sb doped SnO2 films were prepared by sol-gel technique on glass substrate, two doping levels were used. The morphological characteristics of the films were tested by optical-(OM) and atomic force microscopy (AFM). The electrical conductivity was investigated by sheet resistance measurements using the van der Pauw method. Sensors, prepared using these films, were tested as redox and pH electrodes. The experimental data show that the nanostructured Sb doped SnO2 films may be used successfully as electrode material, opening up the perspective of replacing Pt in the construction of electrochemical biosensors.
Keywords :
antimony; atomic force microscopy; doping; electrical conductivity; electrodes; glass; nanostructured materials; optical microscopy; sensors; sol-gel processing; substrates; tin compounds; Pt; Sb; Sb-doped films; SnO2; atomic force microscopy; doping level; electrical conductivity; electrochemical biosensors; electrode material; glass substrate; morphological characteristics; nanostructured SnO2 film; optical microscopy; pH electrodes; redox electrodes; sensors; sheet resistance measurement; sol-gel technique; van der Pauw method; Atom optics; Atomic force microscopy; Biomedical optical imaging; Biosensors; Doping; Electrodes; Glass; Optical films; Optical sensors; Testing;
Conference_Titel :
Semiconductor Conference, 2004. CAS 2004 Proceedings. 2004 International
Print_ISBN :
0-7803-8499-7
DOI :
10.1109/SMICND.2004.1402815
