Issue 2, 2015

Visible-light sensitization of boron-doped nanocrystalline diamond through non-covalent surface modification

Abstract

A novel simple and versatile synthetic strategy is developed for the surface modification of boron-doped diamond. In a two-step procedure, polyethyleneimine is adsorbed on the hydrogenated diamond surface and subsequently modified with a model light-harvesting donor-π-bridge-acceptor molecule (coded P1). The sensitized diamond exhibits stable cathodic photocurrents under visible-light illumination in aqueous electrolyte solution with dimethylviologen serving as an electron mediator. In spite of the simplicity of the surface sensitization protocol, the photoelectrochemical performance is similar to or better than that of other sensitized diamond electrodes which were reported in previous studies (2008–2014).

Graphical abstract: Visible-light sensitization of boron-doped nanocrystalline diamond through non-covalent surface modification

Supplementary files

Article information

Article type
Paper
Submitted
15 Sep 2014
Accepted
30 Oct 2014
First published
05 Nov 2014
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2015,17, 1165-1172

Author version available

Visible-light sensitization of boron-doped nanocrystalline diamond through non-covalent surface modification

H. Krysova, Z. Vlckova-Zivcova, J. Barton, V. Petrak, M. Nesladek, P. Cigler and L. Kavan, Phys. Chem. Chem. Phys., 2015, 17, 1165 DOI: 10.1039/C4CP04148H

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