Polyaniline-tungsten oxide metacomposites with tunable electronic properties

Layer-by-Layer Assembly of PEDOT:PSS and WO3 Nanoparticles: Enhanced Electrochromic Coloration Efficiency and Mechanism Studies by Scanning Electrochemical Microscopy

“…As reported by Deepa et al, PEDOT:PSS/WO 3 composite films with PEDOT:PSS as the major component can exhibit a high coloration efficiency comparable to that of PEDOT:PSS; while the electrochemical response of WO 3 was preserved in the hybrid [10]. The interactions between the organic and inorganic components also stabilize the defects in WO 3 , leading to good electrochemical stability of the hybrids with WO 3 as the major component [8,9,11]. Furthermore, although with cations (M = H + , Na + and Li + ) inserted, M x WO 3 displays metallic conductivity due to its oxygen-vacancy defects [12], the fully oxidized WO 3 is an n-type semiconductor with extremely low electrical conductivity.…”

“…Polycrystalline WO 3 has better chemical and electrochemical stabilities than a-WO 3 , whereas the electrochromic switching process for the polycrystalline WO 3 is slower than that for a-WO 3 because the diffusion of ions is hindered by the crystalline regions [7]. Electrochromic CPs usually exhibit relatively fast switching speed and high coloration efficiency, and hence have been combined with WO 3 to improve its electrochromic properties [8,9]. In particular, both poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (PEDOT:PSS) and WO 3 are cathodically coloring materials, and can be simultaneously switched to colored or bleached state [8].…”

Nanostructured La0.7Sr0.3MnO3compounds for effective electromagnetic interference shielding in the X-band frequency range

“…A variety of nanomaterials including carbon nanotubes, graphene oxides, transition metal oxides and their composites have been studied in recent years for this purpose. [1][2][3][4][5][6][7][8][9][10] There are a number of aspects such as conducting, grounding, electrostatic discharge (ESD), etc. which contribute to the overall performance of the shielding materials.…”

Enhanced electrochromic properties of hybrid P3HT/WO3 composites with multiple colorations

“…The development of organic and inorganic hybrid materials has been extensively studied because the combination of two components can yield enhanced properties [22]. Intensive studies on electrochromic systems composed of a metal oxide and conducting polymers have recently been performed, including that on a WO 3 /PANI composite, which exhibited blue to green coloration [23].…”