BROWSE

Related Researcher

Author

Park, Noejung
Computational Physics & Electronic Structure Lab
Research Interests
  • Electronic structure calculation, computational physics, computational material science

ITEM VIEW & DOWNLOAD

N-type graphene induced by dissociative H-2 adsorption at room temperature

Cited 12 times inthomson ciCited 8 times inthomson ci
Title
N-type graphene induced by dissociative H-2 adsorption at room temperature
Author
Kim, Byung HoonHong, Sung JuBaek, Seung JaeJeong, Hu YoungPark, NoejungLee, MuyoungLee, Sang WookPark, MinChu, Seung WanShin, Hyeon SukLim, JeongminLee, Jeong ChulJun, YongseokPark, Yung Woo
Keywords
REVERSIBLE HYDROGENATION; RAMAN-SPECTROSCOPY; GRAPHITE; NANOSTRUCTURES; MOLECULES; DEFECTS; STORAGE; CARBON
Issue Date
201209
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.2, no., pp.690 -
Abstract
Studies of the interaction between hydrogen and graphene have been increasingly required due to the indispensable modulation of the electronic structure of graphene for device applications and the possibility of using graphene as a hydrogen storage material. Here, we report on the behaviour of molecular hydrogen on graphene using the gate voltage-dependent resistance of single-, bi-, and multi-layer graphene sheets as a function of H-2 gas pressure up to 24 bar from 300 K to 345 K. Upon H-2 exposure, the charge neutrality point shifts toward the negative gate voltage region, indicating n-type doping, and distinct Raman signature changes, increases in the interlayer distance of multi-layer graphene, and a decrease in the d-spacing occur, as determined by TEM. These results demonstrate the occurrence of dissociative H-2 adsorption due to the existence of vacancy defects on graphene.
URI
Go to Link
DOI
http://dx.doi.org/10.1038/srep00690
ISSN
2045-2322
Appears in Collections:
SNS_Journal Papers
UCRF_Journal Papers
ECHE_Journal Papers
Files in This Item:
000309264400001.pdfDownload

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

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

MENU