Effect of fluorine plasma treatment with chemically reduced grapheneoxide thin films as hole transport layer in organic solar cells

Youn Yeol Yu, Byung Hyun Kang, Yang Doo Lee, Sang Bin Lee, Byeong Kwon Ju

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The inorganic materials such as V2O5, MoO 3and WO3were investigated to replace PEDOT:PSS as hole transport layer (HTL) in organic electronic devices such as organic solar cells (OSCs) and organic lighting emission diodes. However, these methods require vacuum techniques that are long time process and complex. Here, we report about plasma treatment with SF6 and CF4 using reactive ion etching on reduced graphene oxide (rGO) thin films that are obtained using an eco-friendly method with vitamin C. Theplasma treated rGO thin films have dipoles since they consist of covalent bonds with fluorine on the surface of rGO. This means it is possible to increase the electrostatic potential energy than bare rGO. Increased potential energy on the surface of rGO films is worth applying organic electronic devices as HTL such as OSCs. Consequently, the power conversion efficiency of OSCs increased more than the rGO films without plasma treatment.

Original languageEnglish
Pages (from-to)91-96
Number of pages6
JournalApplied Surface Science
Volume287
DOIs
Publication statusPublished - 2013 Jan 1

Fingerprint

Graphite
Fluorine
Graphene
Plasmas
Thin films
Oxide films
Potential energy
Oxides
Covalent bonds
Vitamins
Reactive ion etching
Ascorbic Acid
Conversion efficiency
Organic solar cells
Electrostatics
Diodes
Lighting
Vacuum

Keywords

  • Graphene oxide
  • Hole transport layer
  • Organic electronics
  • Organic solar cells
  • Plasma treatments

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Effect of fluorine plasma treatment with chemically reduced grapheneoxide thin films as hole transport layer in organic solar cells. / Yu, Youn Yeol; Kang, Byung Hyun; Lee, Yang Doo; Lee, Sang Bin; Ju, Byeong Kwon.

In: Applied Surface Science, Vol. 287, 01.01.2013, p. 91-96.

Research output: Contribution to journalArticle

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