PEDOT loading

Fig. 8 TEM images of microgels with different PEDOT loading (a) 4.6 wt.%, (b) 6.3 wt.%, (c) 12.6 wt.% (d) schematic representation for reduced and oxidized PEDOT (e) UV-vis spectra of the PEDOT-modified microgel arrows point out the change of the spectra upon acid addition) (Reproduced from Main et al. 2008a)...

Likewise, copolymers 90 have higher EL efficiency than homopolymers DHF-PPV 57 or MEH-PPV 13, due to more balanced charge injection and transport properties. Copolymer 90 with 7.5 wt% loading of dialkoxyphenylene comonomer gave the highest QE. The device with an ITO/PEDOT/90/Ca configuration showed remarkably higher efficiency (2.4cd/A) than devices fabricated with other copolymers in the series (0.65-1.0cd/A) [141],... 

R2 with a large capacitor. This will in effect lower the impedance of the source load, giving rise to a corresponding increase in amplification. The capacitor can favorably be implemented as a symmetric 2-electrode PEDOT PSS electrochemical capacitor. 

The comparison of details NHj sensing properties of drop-coated and AC-DEP-assembled PEDOT/PSS-SWCNTs composite films are shown in Figure 12.21. For the drop-coated composite film, the sensitivity reached highest for 15 mg/mL SWCNT concentration in nanocomposite and then the response of the composite film dropped for 20 mg/mL SWCNT loading. 

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 4. Oxygen reduction polarization curves for our best electrodes containing PEDOT/PSS, polyiqnrole/PSS, and polyaniline supported catalysts. Pt loadings were 0.9, 0.8, and 0.2 mg cm, respectively.

For the electrolyte, PEDOTrPSS (about 0.5 ml.) per layer was drop coated with a pipette uniformly on the fabric while it was in the oven. Each layer of PEDOT PSS was left to dry in the oven for 15 min at a temperature of 90—100°C before applying the next layer. A total of seven layers were coated to increase the PEDOT PSS loading into the fabric since the PEDOTrPSS dispersion was very light at only 6% in water. In addition, the many layers of coating increased the coating uniformity and reduced bulk resistance. Some of the produced charge storage devices are as presented in Fig. 20.2. 

Neither the PEDOT PSS layer nor the entire cell was covered by a protective layer, and the cells were exposed to the ambient environment throughout. But in the future, it will be important to cover the cells to protect them from humidity and oxygen, which have an effect on the PEDOT PSS polymer. Protection of the cell is also needed for laundering purposes if the textile garment with the cells in them would need to be washed. Otherwise, when the fabricated devices come into contact with water, the polymer electrolyte is easily dispersed into water, thereby reducing the current loading. 

PLGA)), into which a drug (here dexamethasone, an anti-inflammatory drug) has been incorporated, followed by electrochemical deposition of a conducting polymer (here poly(3,4-ethylenedioxythiophene) PEDOT) around the drug-loaded, electrospun biodegradable polymers. Dexamethasone can be released from the PEDOT nanotubes in a desired fashion by subsequent electrical stimulation of the PEDOT nanotubes this process presumably proceeds by a local dilation or contraction of the tube that promotes mass transport. 

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