Next Article in Journal / Special Issue
Recent Progress in Ferrocene-Modified Thin Films and Nanoparticles for Biosensors
Previous Article in Journal
Evaluation of the Performance of Grouting Materials for Saturated Riprap
Previous Article in Special Issue
A Sensitive DNAzyme-Based Chiral Sensor for Lead Detection
Article Menu

Export Article

Open AccessArticle
Materials 2013, 6(12), 5726-5741; doi:10.3390/ma6125726

Development of Conductive Boron-Doped Diamond Electrode: A microscopic, Spectroscopic, and Voltammetric Study

1
Division of Engineering, Mayo Clinic, Rochester, MN 55905, USA
2
Department of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA
3
Department of Physics, University of Texas at El Paso, El Paso, TX 79968, USA
*
Author to whom correspondence should be addressed.
Received: 11 November 2013 / Revised: 4 December 2013 / Accepted: 4 December 2013 / Published: 6 December 2013
(This article belongs to the Special Issue Functional Materials and Proteins for Bio-Sensing Applications)
View Full-Text   |   Download PDF [1092 KB, uploaded 6 December 2013]   |  

Abstract

Building on diamond characteristics such as hardness, chemical inertness and low electron emission threshold voltage, the current microscopic, spectroscopic and voltammetric investigations are directed towards improving the properties of electrode coating materials for their future use in clinical studies of deep brain stimulation via fast-scan cyclic voltammetry (FSCV). In this study we combine the capabilities of confocal Raman mapping in providing detailed and accurate analysis of local distributions of material constituents in a series of boron-doped polycrystalline diamond films grown by chemical vapor deposition, with information from the more conventional techniques of scanning electron microscopy (SEM) and infrared absorption spectroscopy. Although SEM images show a uniform distribution of film crystallites, they have the limitation of being unable to differentiate the distribution of boron in the diamond. Values of 1018–1021 atoms/cm3 of boron content have been estimated from the absorption coefficient of the 1290 cm−1 infrared absorption band and from the 500 cm−1 Raman vibration. The observed accumulation of boron atoms and carbon sp2 impurities at the grain boundaries suggests that very high doping levels do not necessarily contribute to improvement of the material’s conductivity, corroborating with voltammetric data. FSCV results also indicate an enhanced stability of analyte detection. View Full-Text
Keywords: confocal Raman microscopy; scanning electron microscopy; infrared absorption spectroscopy; fast-scan cyclic voltammetry; boron-doped diamond confocal Raman microscopy; scanning electron microscopy; infrared absorption spectroscopy; fast-scan cyclic voltammetry; boron-doped diamond
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bennet, K.E.; Lee, K.H.; Kruchowski, J.N.; Chang, S.-Y.; Marsh, M.P.; Van Orsow, A.A.; Paez, A.; Manciu, F.S. Development of Conductive Boron-Doped Diamond Electrode: A microscopic, Spectroscopic, and Voltammetric Study. Materials 2013, 6, 5726-5741.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top