Highly controllable transparent and conducting thin films using layer-by-layer assembly of oppositely charged reduced graphene oxides

Dong Wook Lee, Tae Keun Hong, Dongwoo Kang, Jisook Lee, Mihee Heo, Jin Young Kim, Byeong Su Kim, Hyeon Suk Shin

Research output: Contribution to journalArticle

161 Citations (Scopus)

Abstract

A new approach for the fabrication of reduced graphene oxide (rGO) multilayers which can be used for transparent and conducting thin films was developed. This was achieved by using layer-by-layer (LbL) assembly of positively and negatively charged rGO sheets, which could provide highly controllable thin films in terms of thickness, transmittance, and sheet resistance. In particular, the thickness of the multilayer thin films of rGO was able to be controlled precisely in the subnanometre scale by ∼0.46 nm via simply varying the number of stacking layers. Therefore, this method enabled an excellent control of the rGO multilayers over the optical and electrical properties, which are related to the thickness. Furthermore, we demonstrated the application of the rGO multilayers for an OLED device.

Original languageEnglish
Pages (from-to)3438-3442
Number of pages5
JournalJournal of Materials Chemistry
Volume21
Issue number10
DOIs
Publication statusPublished - 2011 Mar 14

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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