TY - GEN
T1 - Characterization of Au ring microelectrode with cyclic voltammetry and AC impedance spectroscopy
AU - Jing, Weixuan
AU - Zhou, Fan
AU - Chen, Lujia
AU - Jiang, Zhuangde
AU - Niu, Lingling
AU - Wang, Bing
AU - Qi, Han
PY - 2013
Y1 - 2013
N2 - In this paper Au ring microelectrodes are fabricated and characterized. With an optical fibre core as a substrate Au film with thickness 300nm was coated by an electron beam evaporation system, then on this Au coated substrate a parylene passivation layer was deposited, forming the desired Au ring microelectrode. Scanning electron microscopy (SEM) was used to characterize the quality of the deposited films and the adhesion at the interfaces. With a CHI660D electrochemical workstation the electrochemical characterizations were performed at room temperature in a conventional three-electrode system. Cyclic voltammograms as a function of scan rate were sigmoidal form, a typical electrochemical response of microelectrodes. AC impedance frequency spectrum of the fabricated Au ring microelectrode was also obtained in a reversible system, and good agreement was found with the Randels-type equivalent circuit.
AB - In this paper Au ring microelectrodes are fabricated and characterized. With an optical fibre core as a substrate Au film with thickness 300nm was coated by an electron beam evaporation system, then on this Au coated substrate a parylene passivation layer was deposited, forming the desired Au ring microelectrode. Scanning electron microscopy (SEM) was used to characterize the quality of the deposited films and the adhesion at the interfaces. With a CHI660D electrochemical workstation the electrochemical characterizations were performed at room temperature in a conventional three-electrode system. Cyclic voltammograms as a function of scan rate were sigmoidal form, a typical electrochemical response of microelectrodes. AC impedance frequency spectrum of the fabricated Au ring microelectrode was also obtained in a reversible system, and good agreement was found with the Randels-type equivalent circuit.
KW - AC impedance frequency spectrum
KW - Cyclic voltammetry
KW - Electron beam evaporation system
KW - Scanning electron microscopy
KW - Vacuum deposition system
UR - https://www.scopus.com/pages/publications/84890827765
U2 - 10.1109/ISAM.2013.6643505
DO - 10.1109/ISAM.2013.6643505
M3 - 会议稿件
AN - SCOPUS:84890827765
SN - 9781479916573
T3 - Proceedings - 2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013
SP - 125
EP - 127
BT - Proceedings - 2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013
T2 - 2013 IEEE International Symposium on Assembly and Manufacturing, ISAM 2013
Y2 - 30 July 2013 through 2 August 2013
ER -