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Premium Highly Efficient and Reversible Covalent Patterning of Graphene: 2D‐Management of Chemical Information
Author(s)
Wei Tao,
Kohring Malte,
Chen Muqing,
Yang Shangfeng,
Weber Heiko B.,
Hauke Frank,
Hirsch Andreas
Publication year2020
Publication title
angewandte chemie international edition
Resource typeJournals
PublisherWiley
Abstract Patterned graphene‐functionalization with a tunable degree of functionalization can tailor the properties of graphene. Here, we present a new reductive functionalization approach combined with lithography rendering patterned graphene‐functionalization easily accessible. Two types of covalent patterning of graphene were prepared and their structures were unambiguously characterized by statistical Raman spectroscopy together with scanning electron microscopy/energy‐dispersive X‐ray spectroscopy (SEM‐EDS). The reversible defunctionalization processes, as revealed by temperature‐dependent Raman spectroscopy, enable the possibility to accurately modulate the degree of functionalization by annealing. This allows for the management of chemical information through complete write/store/erase cycles. Based on our strategy, controllable and efficient patterning graphene‐functionalization is no longer a challenge and facilitates the development of graphene‐based devices.
Subject(s)chemical engineering , chemistry , covalent bond , engineering , graphene , materials science , nanotechnology , optics , organic chemistry , physics , raman spectroscopy , surface modification
Keyword(s) covalent patterning , graphene , patterned functionalization , Raman spectroscopy
Language(s)English
SCImago Journal Rank5.831
H-Index550
eISSN1521-3773
pISSN1433-7851
DOI10.1002/anie.201914088

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