Article ID Journal Published Year Pages File Type
9812576 Thin Solid Films 2005 4 Pages PDF
Abstract
We have investigated the volatile organic compounds (VOCs) gas sensing properties of high conducting polypyrrole thin films prepared by plasma polymerization and doped with 4-ethlbenzenesulfonic acid (EBSA). Upon exposure to VOCs gas, the resistance of EBSA-doped plasma polymerized polypyrrole (PPPy) films decreases. The films exhibit higher sensitivities to polar analytes such as formaldehyde and acetaldehyde, but show little response to toluene and benzene. Moreover, the EBSA-doped PPPy films are hardly affected by humidity.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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