BROWSE

Related Researcher

Author

Ruoff, Rodney S.
Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Next generation carbons, ultrathin sp3-bonded carbon sheets, negative curvature (‘Schwartzites’) carbons, sp3/sp2 hybrid carbon materials, model compounds for novel carbon materials, reaction mechanisms

ITEM VIEW & DOWNLOAD

Camphor‐Enabled Transfer and Mechanical Testing of Centimeter‐Scale Ultrathin Films

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Camphor‐Enabled Transfer and Mechanical Testing of Centimeter‐Scale Ultrathin Films
Author
Wang, BinLuo, DaLi, ZhanchengKwon, YoungwooWang, MeihuiGoo, MinJin, SunghwanHuang, MingShen, YongtaoShi, HaofeiDing, FengRuoff, Rodney S.
Keywords
camphor; graphene; mechanical testing; transfer; ultrathin films
Issue Date
201805
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED MATERIALS, v., no., pp. -
Abstract
Camphor is used to transfer centimeter‐scale ultrathin films onto custom‐designed substrates for mechanical (tensile) testing. Compared to traditional transfer methods using dissolving/peeling to remove the support‐layers, camphor is sublimed away in air at low temperature, thereby avoiding additional stress on the as‐transferred films. Large‐area ultrathin films can be transferred onto hollow substrates without damage by this method. Tensile measurements are made on centimeter‐scale 300 nm‐thick graphene oxide film specimens, much thinner than the ≈2 μm minimum thickness of macroscale graphene‐oxide films previously reported. Tensile tests were also done on two different types of large‐area samples of adlayer free CVD‐grown single‐layer graphene supported by a ≈100 nm thick polycarbonate film; graphene stiffens this sample significantly, thus the intrinsic mechanical response of the graphene can be extracted. This is the first tensile measurement of centimeter‐scale monolayer graphene films. The Young's modulus of polycrystalline graphene ranges from 637 to 793 GPa, while for near single‐crystal graphene, it ranges from 728 to 908 GPa (folds parallel to the tensile loading direction) and from 683 to 775 GPa (folds orthogonal to the tensile loading direction), demonstrating the mechanical performance of large‐area graphene in a size scale relevant to many applications.
URI
Go to Link
DOI
http://dx.doi.org/10.1002/adma.201800888
ISSN
0935-9648
Appears in Collections:
SNS_Journal Papers
MSE_Journal Papers
Files in This Item:
There are no files associated with this item.

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