논문 해외 국제전문학술지(SCI급) Solution-Processed colored electrodes for ITO-free blue phosphorescent organic light-emitting diodes
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2021-01
- 저자명 이재현,HUSEYNOVA GUNEL,임영지,GASONOO AKPEKO,이승훈,박재영,유재민,주철웅,조남성,김용현,이종희
- 학술지명 JOURNAL OF INFORMATION DISPLAY
- 발행처명 TAYLOR FRANCIS LTD
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 11
홈페이지논문 초록 (Abstract)
Reported herein are solution-processed polymer anode electrodes for blue phosphorescent organic light-emitting diodes (PhOLEDs). The highly conductive anodes were made from 10-wt%-methyl-red-(MR)-doped poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) (PH1000) films. The red-colored and uniform polymer films demonstrated electrical conductivity values that significantly increased from 0.25 to 50 S.cm(-1) after doping. The more than 200-fold enhancement in conductivity indicates that the doped films have a lower sheet resistance and better hole injection and transport properties than the pristine films. The resultant PhOLEDs based on the doped polymer anodes exhibited stable, broad, and intense blue emission at 468 nm with a 2616 cd.m(-2) maximum luminance and a 4 V turn-on voltage. The obtained study results confirmed the effectiveness of the MR dye as a dopant for the significant enhancement of the conductivity and effective hole injection of PEDOT:PSS. Efficient future flexible optoelectronic applications can be built using this highly conductive polymer electrode obtained via a simple, solution-processed, and cost-effective doping approach.