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Issue 3, 2020
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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., 2020,22, 1268-1275
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, 22, 1268
DOI: 10.1039/C9CP05389A

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