상세정보
학술지
Composite Film of Poly(3,4-Ethylenedioxythiophene):Poly(Styrenesulfonate) and MoO3 as an Efficient Hole Injection Layer for Polymer Light-Emitting Diodes
- 저자
- 권용원, 김용남, 이현구, 이창희, 곽정훈
- 발행일
- 201406
- 출처
- Organic Electronics, v.15 no.6, pp.1083-1087
- ISSN
- 1566-1199
- 출판사
- Elsevier
- 협약과제
- 13VB1900, 에너지 절감을 위한 7인치기준 2W급 환경적응 디스플레이 신모드 핵심 원천 기술 개발, 추혜용
- 초록
- We demonstrate improved performances in polymer light-emitting diodes (PLEDs) using a composite film of poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) and MoO3 powder as a hole injection layer. The PLED with the composite film exhibits the current efficiency of 13.5 cd/A, driving voltage of 3.4 V, and half lifetime of 108.1 h, while those values of the PLED with a pristine PEDOT:PSS was 11.3 cd/A, 3.8 V, and 41.5 h, respectively. We also analyze the morphological, optical and electrical properties of the composite films by atomic force microscopy (AFM), UV-Vis-IR absorption, and ultraviolet photoemission spectroscopy (UPS). This work suggests that mixing MoO3 into PEDOT:PSS is a simple and promising technique for use solution-based devices as an hole injection layer. © 2014 Elsevier B.V. All rights reserved.
- KSP 제안 키워드
- 1 H, 4-Ethylenedioxythiophene(EDOT), 4-ethylenedioxythiophene):poly(4-styrenesulfonate)(PEDOT:PSS), Atomic force microscope(AFM), Atomic force microscopy (afm), Composite film, Hole injection layer(HIL), Optical and electrical properties, Polymer light-emitting diodes(PLEDs), UV-Vis-IR absorption, current efficiency