Title: Covalent Modification of Graphene and Graphite Using Diazonium Chemistry: Tunable Grafting and Nanomanipulation
Authors: Greenwood, John ×
Thanh Hai Phan
Fujita, Yasuhiko
Li, Zhi
Ivasenko, Oleksandr
Vanderlinden, Willem
Van Gorp, Hans
Frederickx, Wout
Lu, Gang
Tahara, Kazukuni
Tobe, Yoshito
Uji-I, Hiroshi
Mertens, Stijn F. L
De Feyter, Steven #
Issue Date: 2015
Publisher: American Chemical Society
Series Title: ACS Nano vol:9 issue:5 pages:5520-5535
Abstract: We shine light on the covalent modification of graphite and graphene substrates using diazonium chemistry under ambient conditions. We report on the nature of the chemical modification of these graphitic substrates, the relation between molecular structure and film morphology, and the impact of the covalent modification on the properties of the substrates, as revealed by local microscopy and spectroscopy techniques and electrochemistry. By careful
selection of the reagents and optimizing reaction conditions, a high density of covalently grafted molecules is obtained, a result that is demonstrated in an unprecedented way by scanning tunneling microscopy (STM) under ambient conditions. With nanomanipulation, i.e., nanoshaving using STM, surface structuring and functionalization at the nanoscale is achieved. This manipulation leads to the removal of the covalently anchored molecules, regenerating pristine sp2 hybridized graphene or graphite patches, as proven by space-resolved Raman microscopy and molecular self-assembly studies.
ISSN: 1936-0851
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
postprint(17) - acsnano - covalent modification.pdfOA article Published 3318KbAdobe PDFView/Open
2015 - acsnano - Covalent Modification of Graphene and Graphite Using Diazonium + SI - erc.pdfMain Article - pdf publisher Published 4202KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science