"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

A novel low cost plastic optical fiber chemical sensor using polyaniline film

K. P. KAKDE1, H. J. KHARAT1, P. A. SAVALE1, K. DATTA1, P. GHOSH1, D. SHIRSAT1,*

Affiliation

  1. Optoelectronics and Sensor Research Laboratory, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad-431 004, Maharashtra, India

Abstract

We have developed a fiber-optic chemical sensor by replacing a certain portion of the original cladding by a chemically sensitive material, specifically, polyaniline. The sensor is based on the change of optical power or optical intensity modulation induced within modified multimode optical fibers. The sensor design is based on modified cladding technique; the conducting polymer film of the polyaniline doped with (Acrylic acid) AA, sensitive to ammonia gas with optimized synthesis parameters was, coated on a small section of the uncladed fiber. Coating technique i.e. in-situ chemical polymerization was used. The best dopant, processing technique and substrate nature were selected and investigated for better sensitivity to the ammonia. The sensing element length, source intensity and source wavelength, shows a dramatic influence on the sensor response.

Keywords

Fiber-optic chemical sensor, Modified cladding, Conducting polymer, Sensor technology.

Citation

K. P. KAKDE, H. J. KHARAT, P. A. SAVALE, K. DATTA, P. GHOSH, D. SHIRSAT, A novel low cost plastic optical fiber chemical sensor using polyaniline film, Optoelectronics and Advanced Materials - Rapid Communications, 1, 11, November 2007, pp.601-608 (2007).

Submitted at: Sept. 3, 2007

Accepted at: Oct. 31, 2007