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arXiv · 2106.04947

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

Ryo Nouchi·Kei-ichiro Ikeda
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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.

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Ryo Nouchi, Kei-ichiro Ikeda. 2021-06-09. Photochemical reaction on graphene surfaces controlled by substrate-surface modification with polar self-assembled monolayers. https://doi.org/10.1039/c9cp05389a

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