ELECTROCHEMICAL CHARACTERIZATION OF BILAYER DIAMOND ELECTRODES

1 RENČIUKOVÁ Veronika
Co-authors:
1,2 MORTET Vincent
Institutions:
1 Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague 8, Czech Republic, EU, renciukova@fzu.cz
2 Czech Technical University in Prague, Faculty of Biomedical Engineering, nám. Sítná 3105, 272 01 Kladno, Czech Republic, EU
Conference:
9th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 18th - 20th 2017
Proceedings:
Proceedings 9th International Conference on Nanomaterials - Research & Application
Pages:
816-820
ISBN:
978-80-87294-81-9
ISSN:
2694-930X
Published:
8th March 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
24 views / 7 downloads
Abstract

In this work, we present fabrication and electrochemical characterization of bilayer doped diamond electrodes. The bilayers with different doping concentration have been fabricated by plasma enhanced chemical vapor deposition in two steps: namely an inner thick layer of highly boron doped diamond ([B] > 2∙1020 B atoms per cm-3) and an outer thin layer with a lower boron concentration. All samples were grown on electrically conductive silicon substrate using an ASTeX 5010 deposition system. Effect of the deposition time, i.e. the thickness and doping concentration of outer thin diamond layer on electrochemical properties of the diamond electrodes have been studied by cyclic voltammetry and impedance spectroscopy. This study is motivated by the objective to produce diamond electrode with both wide potential window and high electrical conductivity using a bilayer structure.

Keywords: Bilayer diamond electrode, potential window, cyclic voltammetry, impedance spectroscopy
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