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Photochemical reaction on graphene surfaces controlled by substrate-surface modification with polar self-assembled monolayers

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Abstract

The unique thinness of two-dimensional materials enables control over chemical phenomena at their surfaces by means of various gating techniques. For example, gating methods based on field-effect-transistor configurations have been achieved. Here, we report a molecular gating approach that employs a local electric field generated by a polar self-assembled monolayer formed on a supporting substrate. By performing Raman scattering spectroscopy analyses with a proper data correction procedure, we found that molecular gating is effective for controlling solid phase photochemical reactions of graphene with benzoyl peroxide. Molecular gating offers a simple method to control chemical reactions on the surfaces of two-dimensional materials because it requires neither the fabrication of a transistor structure nor the application of an external voltage.

Graphical abstract: Photochemical reaction on graphene surfaces controlled by substrate-surface modification with polar self-assembled monolayers

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Article information


Submitted
02 Oct 2019
Accepted
11 Dec 2019
First published
11 Dec 2019

Phys. Chem. Chem. Phys., 2020, Advance Article
Article type
Paper

Photochemical reaction on graphene surfaces controlled by substrate-surface modification with polar self-assembled monolayers

R. Nouchi and K. Ikeda, Phys. Chem. Chem. Phys., 2020, Advance Article , DOI: 10.1039/C9CP05389A

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