Value-added Synthesis of Graphene: Recycling Industrial Carbon Waste into Electrodes for High-Performance Electronic Devices

Hong Kyu Seo, Tae Sik Kim, Chibeom Park, Wentao Xu, Kangkyun Baek, Sang Hoon Bae, Jong Hyun Ahn, Kimoon Kim, Hee Cheul Choi, Tae Woo Lee

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have developed a simple, scalable, transfer-free, ecologically sustainable, value-added method to convert inexpensive coal tar pitch to patterned graphene films directly on device substrates. The method, which does not require an additional transfer process, enables direct growth of graphene films on device substrates in large area. To demonstrate the practical applications of the graphene films, we used the patterned graphene grown on a dielectric substrate directly as electrodes of bottom-contact pentacene field-effect transistors (max. field effect mobility ∼0.36cm2·V-1·s-1), without using any physical transfer process. This use of a chemical waste product as a solid carbon source instead of commonly used explosive hydrocarbon gas sources for graphene synthesis has the dual benefits of converting the waste to a valuable product, and reducing pollution.

Original languageEnglish
Article number16710
JournalScientific reports
Volume5
DOIs
Publication statusPublished - 2015 Nov 16

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Industrial Waste
Graphite
Recycling
Electrodes
Carbon
Equipment and Supplies
Coal Tar
Physical Phenomena
Waste Products
Hydrocarbons
Gases
Growth

All Science Journal Classification (ASJC) codes

  • General

Cite this

Seo, Hong Kyu ; Kim, Tae Sik ; Park, Chibeom ; Xu, Wentao ; Baek, Kangkyun ; Bae, Sang Hoon ; Ahn, Jong Hyun ; Kim, Kimoon ; Choi, Hee Cheul ; Lee, Tae Woo. / Value-added Synthesis of Graphene : Recycling Industrial Carbon Waste into Electrodes for High-Performance Electronic Devices. In: Scientific reports. 2015 ; Vol. 5.
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Value-added Synthesis of Graphene : Recycling Industrial Carbon Waste into Electrodes for High-Performance Electronic Devices. / Seo, Hong Kyu; Kim, Tae Sik; Park, Chibeom; Xu, Wentao; Baek, Kangkyun; Bae, Sang Hoon; Ahn, Jong Hyun; Kim, Kimoon; Choi, Hee Cheul; Lee, Tae Woo.

In: Scientific reports, Vol. 5, 16710, 16.11.2015.

Research output: Contribution to journalArticle

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