Growth, Morphology, and Electrical Characterization of Polyaniline–ZnO Nano-composite Langmuir–Blodgett Thin Films

Abstract

Polyaniline (PANi)-zinc oxide (ZnO) nano-composites were prepared by chemical polymerization of aniline doped with ZnO nanoparticles. Surface pressure-area (p-A) isotherms for the PANi-ZnO nano-composite revealed phase transformations of the monolayer during compression. LangmuirBlodgett (LB) films of PANi and PANi-ZnO nano-composite were characterized by use of UV-visible (UV-Vis) and Fourier-transform infrared spectroscopy, atomic force microscopy, and conductive atomic force microscopy (C-AFM). Local current-voltage (I-V) characteristics revealed the current range for PANi-ZnO nano-composite LB films was larger than that for PANi LB films. Conductive data images were recorded to investigate charge-transport current inhomogeneities in the LB films.

Micro/nano particles reinforced polymer composites as greenhouse films for heat retention purposes

“…[58] The PANi/Zinc oxide nanocomposite was produced via reacting Zinc oxide dispersion and ammonium persulfate at low temperature. [59] As shown in Figure 16 and Figure 17, Zinc oxide improves the FIR blocking of the PANi/Zinc oxide composite film by about 30%, but only reduces visible light transmittance by a small amount. This makes the PANi/ Zinc oxide composite film have the potential as an infrared thermal insulation film.…”

“…Afterward, ZnO DCM dispersion was integrated into the above CWO DCM dispersion with a 1 h stirring to obtain ZnO/B-CWO DCM nanodispersions. PLA/Zinc oxide/Cs x WO 3 (B-CWO) composite which can block more than 90% IR at the wavelength range from 1000 to 2500 nm, [58][59][60] as shown in Figure 14. Besides, the photo of the film above the word "Tech."…”

Effects of silver nanoparticles doping on morphology and luminescence behaviour of ferroelectric liquid crystals Langmuir–Blodgett films

“…Because films of soft materials can get damaged during contact or intermittent mode. [39][40][41][42][43][44][45][46][47][48][49][50] Conditions applied for imaging are described in experimental section. AFM image of DDT-Ag nanoparticles deposited at 29 mN m -1 on silicon substrate in the scan range of 5 × 5 µm 2 is shown in Figure 5.…”