Highly Efficient and Reversible Covalent Patterning of Graphene: 2D-Management of Chemical Information

Wei, Kohring, Chen, Yang, Weber, Hauke, Hirsch (2020) Highly Efficient and Reversible Covalent Patterning of Graphene: 2D-Management of Chemical Information Angew Chem Int Ed Engl (IF: -1) 59(14) 5602-5606
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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.© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

Links

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7154694
http://www.ncbi.nlm.nih.gov/pubmed/31833618
http://dx.doi.org/10.1002/anie.201914088

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