File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

김건호

Kim, Gun-Ho
SoftHeat Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Low-cost synthesis of high quality graphene oxide with large electrical and thermal conductivities

Author(s)
Joshi, Shalik RamLee, JaekyoKim, Gun-Ho
Issued Date
2021-06
DOI
10.1016/j.matlet.2021.129649
URI
https://scholarworks.unist.ac.kr/handle/201301/52949
Fulltext
https://www.sciencedirect.com/science/article/pii/S0167577X21003451?via%3Dihub
Citation
MATERIALS LETTERS, v.292, pp.129649
Abstract
A simple and cost-effective method for synthesizing high quality thermally reduced graphene oxide (TrGO) thin films using Shellac, is presented. The synthesis temperature ranges from 550 degrees C to 900 degrees C, and is the sole control parameter to obtain a carbon content as high as 97 atomic percentage. For TrGO synthesized at 900 degrees C, its XPS, Raman, and TEM data indicate a large portion of sp(2) hybridized carbon atoms and large crystal sizes (similar to 1 mu m), which resulted in very high electrical and cross-plane thermal conductivities, 2488 S/cm and 1.3 W/m-K, respectively. Furthermore, this high electrical conductivity of TrGO was observed to remain unaffected under mechanical stress 10 times higher than that completely broke solution-processed reduced graphene oxide (rGO) films, promising its potential for robust, transparent, and cost-effective conductive coating. (C) 2021 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER
ISSN
0167-577X
Keyword (Author)
BiopolymerThermally reduced graphene oxideElectrical propertiesThermal conductivity

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.