Use of a New Type of Polymerized Aniline as a Reversible Sensor for Volatile Organic Compounds (VOCs)

Use of a New Type of Polymerized Aniline as a Reversible Sensor for Volatile Organic Compounds (VOCs)

Octaaniline
(emeraldine oxidation state)

Resistance Response to ~35ppm Toluene Vapor Admixed With Lab Air

Spun thin film (~800Å) of octaaniline^* on to interdigitated gold electrodes

Rapid response (~5 secs)

Rapid recovery (~5 secs)

Complete reversibility (R_final=R₀)

Error in R = ± 1W

* doped with dodecylbenzene sulfonic acid from chloroform solution