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

doi: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

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

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

48 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 language	English
Pages (from-to)	363-368
Number of pages	6
Journal	ChemSusChem
Volume	4
Issue number	3
DOIs	https://doi.org/10.1002/cssc.201000338
Publication status	Published - 2011 Mar 21

All Science Journal Classification (ASJC) codes

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

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Choi, M. R., Woo, S. H., Han, T. H., Lim, K. G., Min, S. Y., Yun, W. M., Kwon, O. K., Park, C. E., Kim, K. D., Shin, H. K., Kim, M. S., Noh, T., Park, J. H., Shin, K. H., Jang, J., & Lee, T. W. (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, 4(3), 363-368. https://doi.org/10.1002/cssc.201000338

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title = "Polyaniline-based conducting polymer compositions with a high work function for hole-injection layers in organic light-emitting diodes: Formation of ohmic contacts",

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.",

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

year = "2011",

month = mar,

day = "21",

doi = "10.1002/cssc.201000338",

language = "English",

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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

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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

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

Abstract

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