Prasad, G. K ; Radhakrishnan, T. P. ; Sravan Kumar, D. ; Ghanashyam Krishna, M. (2005) Ammonia sensing characteristics of thin film based on polyelectrolyte templated polyaniline Sensors and Actuators B: Chemical, 106 (2). 626-631 . ISSN 0925-4005
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S09254...
Related URL: http://dx.doi.org/10.1016/j.snb.2004.09.011
Abstract
A novel conductive polyaniline is synthesized using poly(4-styrenesulfonate-co-maleic acid) as counter ion and template. The resistance of this electroactive polymer increases in the presence of gases such as ammonia. This transducing property is exploited and spin-cast film of this material on glass substrate is established as ammonia gas sensor module, for gas concentrations in the range 5–250 ppm. In this range, the response and recovery times are typically 50–1000 s. The resistance response (R/R0) at short time scales of about 150 s, is shown to vary linearly with the ammonia concentration.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Polyaniline; Poly(4-styrenesulfonate-co-maleic acid); Spin-cast Film; Ammonia Sensor |
| ID Code: | 37373 |
| Deposited On: | 12 Apr 2011 07:40 |
| Last Modified: | 24 May 2011 07:34 |
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