Conductive organic electrodes for flexible electronic devices

The most surprising result of conductivity enhancement of the PEDOT:PSS has been achieved by multiple spin coatings of the PEDOT:PSS and added Cu NP dispersion. The results are summarized in Table 1.

The doubling of the PEDOT:PSS layer alone decreases the sheet resistance by more than tenfold, from 1MΩ/sq (sample 1) to 90kΩ/sq (sample 3) and 85kΩ/sq (sample 4) depending on the spinning speed. A deposition of a third PEDOT:PSS layer reduced the sheet resistance further to 60kΩ/sq (sample 6) and even to…