HIGH-SENSITIVITY AND HIGH-SELECTIVITY MERCURY ION SENSING TECHNIQUE USING THE OXIDATION-REDUCTION REACTION BETWEEN THE MERCURY ION AND THE CARBON NANOTUBE

摘要

PURPOSE: A high-sensitivity and high-selectivity mercury ion sensing technique is provided to sense the mercury ion based on the spontaneous and selective oxidation-reduction reaction between the mercury ion and the carbon nanotube.;CONSTITUTION: A mercury ion sensor comprises a substrate, a source electrode(13), a drain electrode(14), and a carbon nanotube transistor. The carbon nanotube is connected between the source electrode and the drain electrode. The carbon nanotube makes the oxidation-reduction reaction with the mercury ion. The carbon nanotube is the single-walled carbon nanotube. The mercury ion sensor detects the mercury ion by measuring the conductance change of the carbon nanotube by the oxidation-reduction reaction of the carbon nanotube and the mercury ion.;COPYRIGHT KIPO 2011