논문 해외 국제전문학술지(SCI급) Dye-doped poly(3,4-Ethylenedioxythiophene)-Poly(Styrenesulfonate) electrodes for the application in organic light-emitting diodes
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2020-08
- 저자명 이재현,HUSEYNOVA GUNEL,이승훈,이예슬,임영지,박재영,유재민,이종희,주철웅,김용현,조남성
- 학술지명 THIN SOLID FILMS
- 발행처명 ELSEVIER SCIENCE SA
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 11
홈페이지논문 초록 (Abstract)
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.