Details

Autor(en) / Beteiligte

• Huseynova, Gunel
• Lee, Seung-Hoon
• Joo, Chul Woong
• Lee, Ye-Seul
• Lim, Young-Ji
• Park, Jaeyoung
• Yoo, Jae-Min
• Cho, Nam Sung
• Kim, Yong Hyun
• Lee, Jonghee
• Lee, Jae-Hyun

Titel

Dye-doped poly(3,4-Ethylenedioxythiophene)-Poly(Styrenesulfonate) electrodes for the application in organic light-emitting diodes

Ist Teil von

• Thin solid films, 2020-08, Vol.707, p.138078, Article 138078

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •Solution-processed doping for conductive polymer is suggested.•A p-type dopant, organic cationic azo dye was used.•The doped PEDOT:PSS exhibited enhanced conductivities.•Highly conductive electrodes for OLEDs were demonstrated. A facile way to enhance the electrical conductivity of conductive polymers via solution-processed low-concentration doping, is suggested. An organic cationic azo dye, methyl red was used as a p-type dopant for poly(3, 4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) to realize highly conductive electrodes for organic light-emitting diode applications. By optimization of the dopant concentration, the doped PEDOT:PSS films exhibited electrical conductivities enhanced by three orders of magnitude compared to the pristine films. Ultraviolet-visible absorption spectroscopy studies indicate that charge transfer complexes between PEDOT:PSS and the dopant were formed. It was found that the dye exhibits high tendency to oxidize the polymer in a single-blend system which is necessary for the efficient doping. Our research proposes a simple and low-cost doping agent to improve the conductivity and sheet resistance of PEDOT:PSS in order to apply it as a promising electrode material for various kinds of highly flexible organic electronic devices.