Abstract

There has been recent interest in conducting polymers that have very promising chemical and electrical applications. Some of these polymers have shown great potential for use in sensors.1 Polyaniline is one particular example of a prospective material. In our laboratory, we have studied the synthesis of polyaniline nanofibers. We have carried out one-pot syntheses to obtain polyaniline nanofibers in aqueous solutions where the polymerization was influenced by γ-radiation2 or UV-radiation.3 This polymer can also be patterned with an appropriate photo mask. In our present report, polyaniline nanofiber thin film sensors have been fabricated in one step by employing UV-irradiation and those sensors showed high sensitivity. Changes in conductivity were monitored with an electrometer as a function of time after the materials had been exposed to different gases. This simple gas sensing device can be used to detect many different gaseous types.

Department(s)

Chemistry

Second Department

Physics

Third Department

Electrical and Computer Engineering

Fourth Department

Chemical and Biochemical Engineering

Sponsor(s)

National Science Foundation (U.S.)

Keywords and Phrases

Conducting Polymers; Thin Film Sensors

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2008 American Chemical Society (ACS), All rights reserved.


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