Diamond Microelectrodes for Amperometric Oxygen Sensor

Somsak Cheirsirikul; Tosnus Mongkolkiartichai

doi:10.4028/www.scientific.net/AMR.911.276

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 911Diamond Microelectrodes for Amperometric Oxygen...

Diamond Microelectrodes for Amperometric Oxygen Sensor

Abstract:

This report Studied and development of diamond microelectrodes for Amperometric oxygen sensor. Boron-doped diamond film was Synthesized on a Si substrate by Hot-Filament CVD with the optimization Condition for film thickness 5 μm. This diamond film has the active area of electrode Control dimensions by technique uses SiO₂ be a mask Protecting diamond film formation. Four-point probe in additional and Hall Effect technique were used to measure the resistivity, and to measure carriers concentrations of the respectively. Study electrochemistry characteristics of diamond electrodes using Cyclic Voltammetry method. These B/C 10,000 PPM Boron doped diamond electrodes are used as working electrodes of Amperometric oxygen sensor for various of this gas levels detection. These electrodes are packaged with 0.1M KCl solution. The experiment show that current density of the diamond microelectrodes with 100 μm spacing was greater than the current density of the diamond microelectrodes with 40 μm spacing and the planar diamond electrode.

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Periodical:

Advanced Materials Research (Volume 911)

Pages:

276-280

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.911.276

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Online since:

March 2014

Authors:

Somsak Cheirsirikul*, Tosnus Mongkolkiartichai

Keywords:

Amperometric Oxygen Sensor, Diamond Characterization, Diamond Microelectrodes

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