TITLE

Nanoscale chemical sensor based on organic thin-film transistors

AUTHOR(S)
Wang, Liang; Fine, Daniel; Dodabalapur, Ananth
PUB. DATE
December 2004
SOURCE
Applied Physics Letters;12/27/2004, Vol. 85 Issue 26, p6386
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Nanoscale organic thin-film transistors were fabricated to investigate their chemical sensing properties. The use of a four-terminal geometry ensures that the sensor active area is truly nanoscale, and eliminates undesirable spreading currents. The sensor response was markedly different in nanoscale sensors compared to large-area sensors for the same analyte–semiconductor combination. The chemical sensing mechanisms in both microscale and nanoscale transistors are briefly discussed.
ACCESSION #
15403229

 

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