Charge carrier transport through the interface between hybrid electrodes and organic materials in flexible organic light emitting diodes

Huanyu Zhou, Hahn Gil Cheong, Jin Woo Park

Research output: Contribution to journalArticle

Abstract

We investigated the electronic properties of composite-type hybrid transparent conductive electrodes (h-TCEs) based on Ag nanowire networks (AgNWs) and indium tin oxide (ITO). These h-TCEs were developed to replace ITO, and their mechanical flexibility is superior to that of ITO. However, the characteristics of charge carriers and the mechanism of charge-carrier transport through the interface between the h-TCE and an organic material are not well understood when the h-TCE is used as the anode in a flexible organic light-emitting diode (f-OLED). AgNWs were spin coated onto polymer substrates, and ITO was sputtered atop the AgNWs. The electronic energy structures of h-TCEs were investigated by ultraviolet photoelectron spectroscopy. f-OLEDs were fabricated on both h-TCEs and ITO for comparison. The chemical bond formation at the interface between the h-TCE and the organic layer in f-OLEDs was investigated by X-ray photoelectron spectroscopy. The performances of f-OLEDs were compared based on the analysis results.

Original languageEnglish
Pages (from-to)5179-5185
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Volume16
Issue number5
DOIs
Publication statusPublished - 2016 May

Fingerprint

Carrier transport
Organic light emitting diodes (OLED)
electrode materials
organic materials
Charge carriers
charge carriers
Electrodes
light emitting diodes
Tin oxides
indium oxides
Indium
tin oxides
Light
electrodes
Nanowires
nanowires
Photoelectron Spectroscopy
photoelectron spectroscopy
Ultraviolet photoelectron spectroscopy
Chemical bonds

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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abstract = "We investigated the electronic properties of composite-type hybrid transparent conductive electrodes (h-TCEs) based on Ag nanowire networks (AgNWs) and indium tin oxide (ITO). These h-TCEs were developed to replace ITO, and their mechanical flexibility is superior to that of ITO. However, the characteristics of charge carriers and the mechanism of charge-carrier transport through the interface between the h-TCE and an organic material are not well understood when the h-TCE is used as the anode in a flexible organic light-emitting diode (f-OLED). AgNWs were spin coated onto polymer substrates, and ITO was sputtered atop the AgNWs. The electronic energy structures of h-TCEs were investigated by ultraviolet photoelectron spectroscopy. f-OLEDs were fabricated on both h-TCEs and ITO for comparison. The chemical bond formation at the interface between the h-TCE and the organic layer in f-OLEDs was investigated by X-ray photoelectron spectroscopy. The performances of f-OLEDs were compared based on the analysis results.",
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Charge carrier transport through the interface between hybrid electrodes and organic materials in flexible organic light emitting diodes. / Zhou, Huanyu; Cheong, Hahn Gil; Park, Jin Woo.

In: Journal of Nanoscience and Nanotechnology, Vol. 16, No. 5, 05.2016, p. 5179-5185.

Research output: Contribution to journalArticle

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