Humidity sensor based on ultrathin polyaniline film deposited using layer-by-layer nano-assembly

Hydrophilic polyaniline nanofibrous architecture using electrosynthesis method for supercapacitor application

“…This is due to their room temperature operation, low fabrication cost, ease of deposition onto a wide variety of substrates and their rich structural modification chemistry [2,3]. Due to its interesting properties such as electrical conductivity and environmental stability, polyaniline has applications in the areas of sensors [4,5], light-emitting diodes [6], rechargeable batteries [7], gas separation membranes [8], non-linear optical devices [9], etc. Polyaniline exists in a variety of protonation and oxidation forms [10].…”

Nanostructured Conducting Polymers for (Electro)chemical Sensors

“…Cyclic voltammetry revealed that greater discrimination of the oxidation peaks of ascorbic acid and dopamine could be achieved when iron was the metal selected as the metal guest. In other work, alternating layers of self-doped, anionic polymers such as poly(anilinesulfonic acid) (SPANI) with cationic poly(allyl amine) (PAH) have been assembled onto seed layers of PAH/poly(styrene sulfonate) (PSS) and evaluated as a humidity sensor [33]. Conversion of the polymer film from the leucoemeraldine to the emeraldine form due to proton transfer to water is suggested as the basis for the reduction in resistance of the film on exposure to water vapor [34].…”

Integration of sensors and RFID¿s on ultra-low-cost paper-based substrates for wireless sensor networks applications

“…SENSOR Recent developments in humidity sensors, based on ultrathin poly(anilinesulfonic acid) (SPANI) film [1], and pressure sensors fabricated on Liquid Crystal Polymer (LCP) [2] unfold a new field of opportunities in the organic sensor field. Additionally, development of organic thinfilm transistor (OTFT) sensors [3] opens up new possibilities in compact sensing systems, especially in biosensing applications.…”