QDs Based Photoelectrochemical Sensors for Detection of Ascorbic Acid

Li Ping Tu; Guo Wei Xu

doi:10.4028/www.scientific.net/MSF.1033.77

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HomeMaterials Science ForumMaterials Science Forum Vol. 1033QDs Based Photoelectrochemical Sensors for...

QDs Based Photoelectrochemical Sensors for Detection of Ascorbic Acid

Abstract:

By fixing Quantum Dots (QDs) on gold electrodes with dithiol compounds, a novel Ascorbic Acid sensor without any redox mediator was desighed. First, the fabrication process of sensor was described.Sencond, the characteristics of the sensor were investigated. Third,the sensor was tested in Ascorbic Acid solutions of different concentrations.From the results,it shows that the performance of photoelectrochemical sensor were influenced by the bias voltage and the amplitude of photocurrent changed with the Ascorbic Acid concentration linearly in detection range.

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Periodical:

Materials Science Forum (Volume 1033)

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77-81

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https://doi.org/10.4028/www.scientific.net/MSF.1033.77

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Online since:

June 2021

Authors:

Li Ping Tu*, Guo Wei Xu

Keywords:

Ascorbic Acid, Photocurrent, Quantum Dots, Sensors

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