논문 해외 국제전문학술지(SCI급) HIGHLY CONDUCTIVE PEDOT: PSS FILMS WITH 1,3-DIMETHYL-2-IMIDAZOLIDINONE AS TRANSPARENT ELECTRODES FOR ORGANIC LIGHT-EMITTING DIODES
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-09
- 저자명 이재현
- 학술지명 MACROMOLECULAR RAPID COMMUNICATIONS
- 발행처명 WILEY-V C H VERLAG GMBH
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 13
홈페이지논문 초록 (Abstract)
Highly conductive poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) films as transp arent electrodes for organic light-emitting diodes (OLEDs) are doped wit h a new solvent 1,3-dimethyl-2-imidazolidinone (DMI) and are optimi zed using solvent posttreatment. The DMI doped PEDOT: PSS films show significantly enhanced conductivities up to 812.1 S cm(-1). The sheet resistance of the PEDOT: PSS films doped with DMI is further re duced by various solvent post-treatment. The effect of solvent pos t-treatment on DMI doped PEDOT: PSS films is investigated and is sho wn to reduce insulating PSS in the conductive films. The solve nt posttreated PEDOT: PSS films are successfully employed as transparen t electrodes in white OLEDs. It is shown that the efficiency of OLEDs w ith the optimized DMI doped PEDOT: PSS films is higher than that of ref erence OLEDs doped with a conventional solvent (ethylene glycol). Th e results present that the optimized PEDOT: PSS films with the new solve nt of DMI can be a promising transparent electrode for low-cost, eff icient ITO-free white OLEDs.