Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

PEDOTiPSS Dispersions

PEDOTiPSS dispersions can be deposited by multiple techniques including spin coating, doctor blading, dip coating or ink jetting. Spin coating is regarded as the most reliable technique to obtain uniform thin layers. [Pg.558]

Figure 6.19 The mechanism of dispersion of aggregated Gp in polymer (PEDOTiPSS) during mixing and sonication processing. Figure 6.19 The mechanism of dispersion of aggregated Gp in polymer (PEDOTiPSS) during mixing and sonication processing.
Figure 7.7 Electrochemical performance of rGO-PEDOT PSS composite in a three-electrode system (A) cyclic voltammograms of the composite electrodes before and after chemical reduction, (B) specific capacitance of rGO-PEDOT PSS composite (rGO PD 25] composite electrodes with different mass loading at 5 mV s , marked with the minimum active material mass for further electrochemical characterization, (C] variation of specific capacitance of different composites including PEDOT-PSS with scan rates, and (D] Nyquist plots of different composite electrodes (increasing PEDOTiPSS content from 25 to 75%, i.e., 25% PEDOT-PSS containing dispersion of GO is indicated as GO-PD 25 composite]. The inset shows the corresponding magnified high frequency region. Reprinted with permission from Ref. 197, Copyright 2014 Islam, Chidembo, Aboutalebi, Cardillo, Liu, Konstantinov and Dou. Figure 7.7 Electrochemical performance of rGO-PEDOT PSS composite in a three-electrode system (A) cyclic voltammograms of the composite electrodes before and after chemical reduction, (B) specific capacitance of rGO-PEDOT PSS composite (rGO PD 25] composite electrodes with different mass loading at 5 mV s , marked with the minimum active material mass for further electrochemical characterization, (C] variation of specific capacitance of different composites including PEDOT-PSS with scan rates, and (D] Nyquist plots of different composite electrodes (increasing PEDOTiPSS content from 25 to 75%, i.e., 25% PEDOT-PSS containing dispersion of GO is indicated as GO-PD 25 composite]. The inset shows the corresponding magnified high frequency region. Reprinted with permission from Ref. 197, Copyright 2014 Islam, Chidembo, Aboutalebi, Cardillo, Liu, Konstantinov and Dou.
The PSS in this complex has two functions. The first is to serve as the charge-balancing counterion to the PEDOT cation [13], The second is to disperse the PEDOT segments in water. Although the resulting PEDOTiPSS complex is not truly water soluble, the reaction forms a stable, easy-to-process, deep-blue microdispersion of polymer gel particles. [Pg.555]

To obtain uniform films from aqueous dispersions of PEDOT PSS, the solution has to be filtered carefully to remove dissolved particles, e.g. dust or small amounts of aggregated PEDOT PSS. For small quantities, a syringe equipped with a PVDE filter of pore-size 0.45 tim or less is sufficient for most applications. The solution is then deposited on a thoroughly cleaned substrate (cleaned by using common techniques such as plasma cleaning, UV ozonizing or wet cleaning). Clean, fat-fl ee surfaces are imperative for proper PEDOTiPSS deposition. [Pg.558]

To compare the level of individualization, transmission electron microscopy (TEM) was performed on SWCNT dispersions prepared with either SDS or PEDOTiPSS. These TEM micrographs are shown in Figure 6.3. [Pg.174]

The aqueous dispersion of PEDOTiPSS has a surface tension of approximately 65 to 71 mN/m depending on the ratio of PEDOT to PSS. Such a surface tension is too high to wet hydrophobic surfaces such as plastic substrates like polyethylene terephthalate (PET), polycarbonate (PC), or polyethylene (PE) with aqueous PEDOT PSS dispersion. [Pg.198]

When plastic substrates are coated by PEDOTiPSS and subsequently mechanically treated after coating, for example, by thermoforming, special binders are needed to prevent cracks in the coating during mechanical treatment and to maintain the overall conductivity. In such a case polymeric binders are preferred with a softening point that is below the softening point of the underlying polymer substrate. Especially some polyurethane dispersions appear to fulfill this requirement. [Pg.199]


See other pages where PEDOTiPSS Dispersions is mentioned: [Pg.267]    [Pg.267]    [Pg.72]    [Pg.109]    [Pg.113]    [Pg.130]    [Pg.555]    [Pg.460]    [Pg.491]    [Pg.132]   


SEARCH



© 2024 chempedia.info