Measurements on room temperature gas sensing properties of CSA doped polyaniline–ZnO nanocomposites

Effect of Camphor Sulfonic Acid Doping on Structural, Morphological, Optical and Electrical Transport Properties on Polyaniline-ZnO Nanocomposites

“…However UV spectra of PANi-ZnO:CSA (50%) exhibit the flat peak at 824 nm followed by free carrier tail indicates that the localized polaron band is converted to the delocalized polaron free carrier tail absorption. Such difference also supports the high conductivity of PANi-ZnO: CSA (50%) [39]. Figure 6 shows the variation of electrical conductivity (σ) with increasing doping concentration of CSA into PANiZnO measured according to the standard four point probe method at room temperature.…”

“…Actual spectra was recorded in the wave number range 400 -4000 cm ) and 1737 cm −1 (C=O) [38] are also observed. The fact that the polymer is protonated in part by surface anions is demonstrated by the presence of the peak at 722 cm −1 , which is attributed to a stretching vibration in the surface anion [39]. The frequency data obtained and their assignments are presented in Table 2.…”

Properties of in situ HCl‐doped emeraldine polyaniline on n ‐Si(100) substrates for diode application

“…Fabrication of PAni solution into thin films can be carried out using various techniques [1,5] because of its ease in preparation methods. PAni have also been studied for several applications including renewable batteries and capacitors, light emitting diode [5], gas sensor [6], and various applications as nanocomposite materials [7][8][9][10].…”

Water-repellent flexible fabric strain sensor based on polyaniline/titanium dioxide-coated knit polyester fabric

“…However, PANI is susceptible to rapid degradation in properties upon repetitive cycles (charge/discharge process), because of its swelling and shrinkage. To alleviate this limitation, the combination of PANI with fine-grade filler materials, such as carbon nanotube [9], graphene [10,11], mesoporous carbon [12], ZnO [13,14], SiO 2 [15], NiO [16], and Fe 3 O 4 [17], has already been reported. For instance, Kachoei et al [18] prepared graphene/emeraldine salt composites with sandwich-like structures via in situ inverse microemulsion polymerization of aniline monomers.…”