BROWSE

Related Researcher

Author

Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

ITEM VIEW & DOWNLOAD

Highly Efficient Polymer Light-Emitting Diodes Using Graphene Oxide as a Hole Transport Layer

Cited 0 times inthomson ciCited 25 times inthomson ci
Title
Highly Efficient Polymer Light-Emitting Diodes Using Graphene Oxide as a Hole Transport Layer
Author
Lee, Bo RamKim, Jung-WooKang, DongwooLee, Dong WookKo, Seo-JinLee, Hyun JungLee, Chang-LyoulKim, Jin YoungShin, Hyeon SukSong, Myoung Hoon
Keywords
Active Layer; Device performance; Efficiency levels; Electron transport; Emissive layers; Exciton quenching; Graphene oxides; Hole transport layers; Hole-electron recombination; Luminous efficiency; Maximum luminance; Maximum power; PEDOT:PSS; Poly(3 ,4-ethylenedioxythiophene); Poly(styrene sulfonate); Polymer light-emitting diodes; Power conversion efficiencies; Super yellow; Wide band gap
Issue Date
201204
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.6, no.4, pp.2984 - 2991
Abstract
We present an Investigation of polymer light-emitting diodes (PLEDs) with a solution-processable graphene oxide (GO) interlayer. The GO layer with a wide band gap blocks electron transport from an emissive polymer to an ITO anode while reducing the exciton quenching between the GO and the active layer in place of poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (PEDOT:PSS). This GO interlayer maximizes hole electron recombinations within the emissive layer, finally enhancing device performance and efficiency levels In PLEDs. It was found that the thickness of the GO layer Is an important factor in device performance. PLEDs with a 4.3 nm thick GO interlayer are superior to both those with PEDOT:PSS layers as well as those with rGO, showing maximum luminance of 39 000 Cd/m(2), maximum luminous efficiencies of 191 Cd/A (at 6.8 V), and maximum power efficiency as high as 11.0 lm/W (at 4.4 V):. This Indicates that PLEDs with a GO layer show a 220% increase In their luminous efficiency and 280% Increase in their power conversion efficiency compared to PLEDs with PEDOT:PSS.
URI
Go to Link
DOI
http://dx.doi.org/10.1021/nn300280q
ISSN
1936-0851
Appears in Collections:
SNS_Journal Papers
MSE_Journal Papers
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU