Polyaniline-based conducting polymer compositions with a high work function for hole-injection layers in organic light-emitting diodes

Formation of ohmic contacts

Mi Ri Choi, Seong Hoon Woo, Tae Hee Han, Kyung Geun Lim, Sung Yong Min, Won Min Yun, Oh Kwan Kwon, Chan Eon Park, Kwan Do Kim, Hoon Kyu Shin, Myeong Suk Kim, Taeyong Noh, Jong Hyeok Park, Kyoung Hwan Shin, Jyongsik Jang, Tae Woo Lee

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

It is a great challenge to develop solution-processed, polymeric hole-injection layers (HILs) that perform better than small molecular layers for realizing high-performance small-molecule organic light-emitting diodes (SM-OLEDs). We have greatly improved the injection efficiency and the current efficiency of SM-OLEDs by introducing conducting polymer compositions composed of polyaniline doped with polystyrene sulfonate and perfluorinated ionomer (PFI) as the HIL. During single spin-coating of conducting polymer compositions, the PFI layer was self-organized at the surface and greatly increased the film work function. It enhanced hole-injection efficiency and current efficiency by introducing a nearly ohmic contact and improving electron blocking. Our results demonstrate that solution-processed polyaniline HILs with tunable work functions are good candidates for reducing process costs and improving OLED performance.

Original languageEnglish
Pages (from-to)363-368
Number of pages6
JournalChemSusChem
Volume4
Issue number3
DOIs
Publication statusPublished - 2011 Mar 21

Fingerprint

Ohmic contacts
Conducting polymers
Organic light emitting diodes (OLED)
Polyaniline
polymer
Ionomers
Chemical analysis
Molecules
Spin coating
sulfonate
Polystyrenes
coating
polyaniline
Electrons
electron
Costs
cost

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

Cite this

Choi, Mi Ri ; Woo, Seong Hoon ; Han, Tae Hee ; Lim, Kyung Geun ; Min, Sung Yong ; Yun, Won Min ; Kwon, Oh Kwan ; Park, Chan Eon ; Kim, Kwan Do ; Shin, Hoon Kyu ; Kim, Myeong Suk ; Noh, Taeyong ; Park, Jong Hyeok ; Shin, Kyoung Hwan ; Jang, Jyongsik ; Lee, Tae Woo. / Polyaniline-based conducting polymer compositions with a high work function for hole-injection layers in organic light-emitting diodes : Formation of ohmic contacts. In: ChemSusChem. 2011 ; Vol. 4, No. 3. pp. 363-368.
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abstract = "It is a great challenge to develop solution-processed, polymeric hole-injection layers (HILs) that perform better than small molecular layers for realizing high-performance small-molecule organic light-emitting diodes (SM-OLEDs). We have greatly improved the injection efficiency and the current efficiency of SM-OLEDs by introducing conducting polymer compositions composed of polyaniline doped with polystyrene sulfonate and perfluorinated ionomer (PFI) as the HIL. During single spin-coating of conducting polymer compositions, the PFI layer was self-organized at the surface and greatly increased the film work function. It enhanced hole-injection efficiency and current efficiency by introducing a nearly ohmic contact and improving electron blocking. Our results demonstrate that solution-processed polyaniline HILs with tunable work functions are good candidates for reducing process costs and improving OLED performance.",
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Choi, MR, Woo, SH, Han, TH, Lim, KG, Min, SY, Yun, WM, Kwon, OK, Park, CE, Kim, KD, Shin, HK, Kim, MS, Noh, T, Park, JH, Shin, KH, Jang, J & Lee, TW 2011, 'Polyaniline-based conducting polymer compositions with a high work function for hole-injection layers in organic light-emitting diodes: Formation of ohmic contacts', ChemSusChem, vol. 4, no. 3, pp. 363-368. https://doi.org/10.1002/cssc.201000338

Polyaniline-based conducting polymer compositions with a high work function for hole-injection layers in organic light-emitting diodes : Formation of ohmic contacts. / Choi, Mi Ri; Woo, Seong Hoon; Han, Tae Hee; Lim, Kyung Geun; Min, Sung Yong; Yun, Won Min; Kwon, Oh Kwan; Park, Chan Eon; Kim, Kwan Do; Shin, Hoon Kyu; Kim, Myeong Suk; Noh, Taeyong; Park, Jong Hyeok; Shin, Kyoung Hwan; Jang, Jyongsik; Lee, Tae Woo.

In: ChemSusChem, Vol. 4, No. 3, 21.03.2011, p. 363-368.

Research output: Contribution to journalArticle

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AU - Choi, Mi Ri

AU - Woo, Seong Hoon

AU - Han, Tae Hee

AU - Lim, Kyung Geun

AU - Min, Sung Yong

AU - Yun, Won Min

AU - Kwon, Oh Kwan

AU - Park, Chan Eon

AU - Kim, Kwan Do

AU - Shin, Hoon Kyu

AU - Kim, Myeong Suk

AU - Noh, Taeyong

AU - Park, Jong Hyeok

AU - Shin, Kyoung Hwan

AU - Jang, Jyongsik

AU - Lee, Tae Woo

PY - 2011/3/21

Y1 - 2011/3/21

N2 - It is a great challenge to develop solution-processed, polymeric hole-injection layers (HILs) that perform better than small molecular layers for realizing high-performance small-molecule organic light-emitting diodes (SM-OLEDs). We have greatly improved the injection efficiency and the current efficiency of SM-OLEDs by introducing conducting polymer compositions composed of polyaniline doped with polystyrene sulfonate and perfluorinated ionomer (PFI) as the HIL. During single spin-coating of conducting polymer compositions, the PFI layer was self-organized at the surface and greatly increased the film work function. It enhanced hole-injection efficiency and current efficiency by introducing a nearly ohmic contact and improving electron blocking. Our results demonstrate that solution-processed polyaniline HILs with tunable work functions are good candidates for reducing process costs and improving OLED performance.

AB - It is a great challenge to develop solution-processed, polymeric hole-injection layers (HILs) that perform better than small molecular layers for realizing high-performance small-molecule organic light-emitting diodes (SM-OLEDs). We have greatly improved the injection efficiency and the current efficiency of SM-OLEDs by introducing conducting polymer compositions composed of polyaniline doped with polystyrene sulfonate and perfluorinated ionomer (PFI) as the HIL. During single spin-coating of conducting polymer compositions, the PFI layer was self-organized at the surface and greatly increased the film work function. It enhanced hole-injection efficiency and current efficiency by introducing a nearly ohmic contact and improving electron blocking. Our results demonstrate that solution-processed polyaniline HILs with tunable work functions are good candidates for reducing process costs and improving OLED performance.

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