Testing of graphite paste properties for thick film sensors

článek ve sborníku ve WoS nebo Scopus

angličtina

The miniature electrochemical sensors can be produced by thick film technology. The optimal properties of thick film electrode materials are main problems of sensors design. The optimisation of graphite paste for TFT chemical sensor properties is discussed. The commercial TFT graphite pastes, which are used for common application, are cheap and easily producible, but they are not efficient for electrochemical measurement. These pastes have insufficient sensitivity and they have other improper properties. Graphite pastes, which were designed for special chemical analysis, are technically known, but these pastes are not workable by screen-printing. The aim of this work is first step in rheologic properties addition to graphite electrochemical pastes. This will ensure the pastes printability that will enable the reproducible mass production. The graphite powder mixed with paraffin is the basic component of common chemical graphite pastes. There were examined different properties of these pastes in dependence of graphite powder and binding material content in this work. The measurement was made in standard electrochemical couple of potassium ferrocyanide-ferricyanide.

electrochemical sensors, graphite, graphite paste electrode, thick film electrodes

ADÁMEK, M.; PRÁŠEK, J.; KREJČÍ, J.

2003

1. 1. 2003

ETC GRAFO & BRIX Poštová 13 040 01 Košice, Slovak Republic

Technical University of KošicePark Komenského 2043 89 KošiceSlovak Republic

0-7803-8002-9

26th International Spring Seminaron Electronics TechnologyISSE 2003 Conference Proceedings

1

344

348

5