Abstract
Conductive polymers are capable of detecting various gases such as NH3 at room temperature. Therefore, the development of conductive polymers based NH3 gas sensors have accelerated and have been widely used in a variety of fields, including biomedical and environmental gas monitoring. It is essential to review the performance of conductive polymers based NH3 gas sensors and discuss challenges and opportunities. This review presents a comprehensive review of the state-of-the-art concerning NH3 gas sensors, which have been developed with CPs using chemiresistive electrode architecture. The material-specific aspects such as the pristine conductive polymer response, selectivity, stability, repeatability, response towards humidity, response towards temperature and the flexibility and bending ability of conductive polymer of 24 chemiresistive conductive polymers NH3 sensors are compared and discussed.