Issue 20, 2024

Fabrication of polycrystalline phosphorus-doped diamond electrodes from red phosphorus

Abstract

Polycrystalline phosphorus-doped diamond was fabricated by the quartz-tube-type microwave plasma-assisted chemical vapor deposition method. Significantly, red phosphorus was used as a source of phosphorous, instead of PH3. Phosphorus-doped diamond electrodes with hydrogen-terminated and oxygen-terminated surfaces were investigated for the redox reactions of K3[Fe(CN)6] and [Ru(NH3)6]Cl3. The carrier concentration was estimated as 2.1–5.3 × 1018 cm−3 from electrochemical impedance measurements. Polycrystalline phosphorus-doped diamond shows great promise as chemical electrode materials.

Graphical abstract: Fabrication of polycrystalline phosphorus-doped diamond electrodes from red phosphorus

Supplementary files

Article information

Article type
Paper
Submitted
11 Dec 2023
Accepted
03 May 2024
First published
03 May 2024

Phys. Chem. Chem. Phys., 2024,26, 14825-14831

Fabrication of polycrystalline phosphorus-doped diamond electrodes from red phosphorus

T. Moriguchi, M. Tomisaki, S. Sato, J. Nakamura, H. Yamada and Y. Einaga, Phys. Chem. Chem. Phys., 2024, 26, 14825 DOI: 10.1039/D3CP06018G

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