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학술지 Composite Film of Poly(3,4-Ethylenedioxythiophene):Poly(Styrenesulfonate) and MoO3 as an Efficient Hole Injection Layer for Polymer Light-Emitting Diodes
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저자
권용원, 김용남, 이현구, 이창희, 곽정훈
발행일
201406
출처
Organic Electronics, v.15 no.6, pp.1083-1087
ISSN
1566-1199
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.orgel.2014.03.006
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.
키워드
Hole injection layer, Molybdenum oxide, PEDOT:PSS, Polymer light-emitting diodes
KSP 제안 키워드
1 H, 4-Ethylenedioxythiophene(EDOT), 4-ethylenedioxythiophene):poly(4-styrenesulfonate)(PEDOT:PSS), Atomic force microscopy (afm), Composite film, Hole injection layer(HIL), Molybdenum Oxide, Optical and electrical properties, Polymer light-emitting diodes(PLEDs), UV-Vis-IR absorption, current efficiency