Effects of film structure on electrochromic properties of the multilayer films containing polyoxometalates

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

“…6(a-c). For all the three types of films, the area enclosed by the CV curves increases as increasing the number of layers, which verifies the successful LBL deposition of the components [24]. Figs.…”

“…However, although in principle the small thickness of the nanosheets could shorten the ion diffusion path, in reality the stacking of the nanosheets leads to a slow coloration process. Several research groups also reported the LBL assembly of electrochromic thin films based on polyoxometalates (POMs) and polyelectrolyte, such as tungstophosphate anion (P 2 W 18 ) and poly(allylamine hydrochloride) (PAH) [24]. Gold nanoparticles (AuNPs) have also been incorporated into POMs/polyelectrolyte system to enhance its electrochromic properties [25].…”

Hybrid Organic-Inorganic Materials Based on Polyoxometalates and Ionic Liquids and Their Application in Catalysis

“…Since the charge transfer plays a key role in both phenomena, it is very important to increase the charge (electrons, holes, and protons) interactions between the components either by introduction of heteroatoms or by the crossbreeding of the organic and inorganic ions in hybrid materials. The progress in this field was summarized in various works [11][12][13][14][15][16][17].…”

Understand the Degradation Mechanism of Electrochromic WO3 Films by Double‐step Chronoamperometry and Chronocoulometry Techniques Combined with in situ Spectroelectrochemical Study

“…Certainly, it can meet the basic test requirements, such as multi-cycle test, coloration/bleaching controlling and calculating charge capacity, etc. Double-step techniques involving chronoamperometry and chronocoulometry have been employed to estimate the single-cycle response time and charge capacity of electrochromic films [19][20][21][22][23][24]. These bring about that the factors effecting electrochemical reaction of the film are unclear, and consequently, the measures adopted to improve the electrochromic performance are inaccurate.…”