Flexible Indium-Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer

Sang Jin Lee, Yekyung Kim, Jun Yeon Hwang, Ju Ho Lee, Seungon Jung, Hyesung Park, Seungmin Cho, Sahn Nahm, Woo Seok Yang, Hyeongkeun Kim, Seung Ho Han

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Flexible and crystallized indium-tin oxide (ITO) thin films were successfully obtained on plastic polyethylene terephthalate (PET) films with monolayered graphene as a platform. The highly crystalline ITO (c-ITO) was first fabricated on a rigid substrate of graphene on copper foil and it was subsequently transferred onto a PET substrate by a well-established technique. Despite the plasma damage during ITO deposition, the graphene layer effectively acted as a Cu-diffusion barrier. The c-ITO/graphene/PET electrode with the 60-nm-thick ITO exhibited a reasonable sheet resistance of ~45 Ω sq-1 and a transmittance of ~92% at a wavelength of 550 nm. The c-ITO on the monolayered graphene support showed significant enhancement in flexibility compared with the ITO/PET film without graphene because the atomically controlled monolayered graphene acted as a mechanically robust support. The prepared flexible transparent c-ITO/graphene/PET electrode was applied as the anode in a bulk heterojunction polymer solar cell (PSC) to evaluate its performance, which was comparable with that of the commonly used c-ITO/glass electrode. These results represent important progress in the fabrication of flexible transparent electrodes for future optoelectronics applications.

Original languageEnglish
Article number3131
JournalScientific Reports
Volume7
Issue number1
DOIs
Publication statusPublished - 2017 Dec 1

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Graphite
Monolayers
Polyethylene Terephthalates
Plastics
Crystals
Substrates
Crystalline materials
Electrodes
ITO glass
Diffusion barriers
indium tin oxide
Sheet resistance
Optoelectronic devices
Metal foil
Oxide films
Heterojunctions
Copper
Anodes
Plasmas
Fabrication

ASJC Scopus subject areas

  • General

Cite this

Lee, S. J., Kim, Y., Hwang, J. Y., Lee, J. H., Jung, S., Park, H., ... Han, S. H. (2017). Flexible Indium-Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer. Scientific Reports, 7(1), [3131]. https://doi.org/10.1038/s41598-017-02265-3

Flexible Indium-Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer. / Lee, Sang Jin; Kim, Yekyung; Hwang, Jun Yeon; Lee, Ju Ho; Jung, Seungon; Park, Hyesung; Cho, Seungmin; Nahm, Sahn; Yang, Woo Seok; Kim, Hyeongkeun; Han, Seung Ho.

In: Scientific Reports, Vol. 7, No. 1, 3131, 01.12.2017.

Research output: Contribution to journalArticle

Lee, SJ, Kim, Y, Hwang, JY, Lee, JH, Jung, S, Park, H, Cho, S, Nahm, S, Yang, WS, Kim, H & Han, SH 2017, 'Flexible Indium-Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer', Scientific Reports, vol. 7, no. 1, 3131. https://doi.org/10.1038/s41598-017-02265-3
Lee, Sang Jin ; Kim, Yekyung ; Hwang, Jun Yeon ; Lee, Ju Ho ; Jung, Seungon ; Park, Hyesung ; Cho, Seungmin ; Nahm, Sahn ; Yang, Woo Seok ; Kim, Hyeongkeun ; Han, Seung Ho. / Flexible Indium-Tin Oxide Crystal on Plastic Substrates Supported by Graphene Monolayer. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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