TY - JOUR
T1 - Electrochemical and optical evaluation of noble metal- and carbon-ITO hybrid optically transparent electrodes
AU - Zudans, Imants
AU - Paddock, Jean R.
AU - Kuramitz, Hideki
AU - Maghasi, Anne T.
AU - Wansapura, Chamika M.
AU - Conklin, Sean D.
AU - Kaval, Necati
AU - Shtoyko, Tanya
AU - Monk, David J.
AU - Bryan, Samuel A.
AU - Hubler, Timothy L.
AU - Richardson, John N.
AU - Seliskar, Carl J.
AU - Heineman, William R.
N1 - Funding Information:
We are very grateful to the Department of Energy (DE-FG07-99ER62311-70010) for financial support and the Hayes Fund, which aided in the purchase of the ellipsometer, ESEM, and electrochemical workstation. This research was performed in part at the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the US Department of Energy’s Office of Biological and Environmental Research and located at the Pacific Northwest National Laboratory. Pacific Northwest National Laboratory is operated for the US Department of Energy by Battelle.
PY - 2004/4/15
Y1 - 2004/4/15
N2 - Optically transparent hybrid electrodes were constructed by sputtering or thermally evaporating layers of varying thickness of Au, Pd, Pt, or C onto an existing conductive indium-tin oxide (ITO) layer on glass. These electrodes were characterized using UV-Vis spectroscopy and cyclic voltammetry; redox probes examined were potassium ferricyanide, tris-(2,2′-bipyridyl)ruthenium(II) chloride, hydroquinone, and para-aminophenol (PAP). Each type of hybrid was evaluated and compared with other hybrids, as well as with bare ITO electrodes and commercially available Au, Pt, and glassy carbon disk electrodes. Our results indicate that these hybrid electrodes are reasonably robust, easy to prepare, and extend the capabilities of bare ITO surfaces with respect to the electrochemical response (especially for organic redox probes), while giving up little in the way of optical transparency. Because of these characteristics, hybrid electrodes should be especially suited to many spectroelectrochemical applications.
AB - Optically transparent hybrid electrodes were constructed by sputtering or thermally evaporating layers of varying thickness of Au, Pd, Pt, or C onto an existing conductive indium-tin oxide (ITO) layer on glass. These electrodes were characterized using UV-Vis spectroscopy and cyclic voltammetry; redox probes examined were potassium ferricyanide, tris-(2,2′-bipyridyl)ruthenium(II) chloride, hydroquinone, and para-aminophenol (PAP). Each type of hybrid was evaluated and compared with other hybrids, as well as with bare ITO electrodes and commercially available Au, Pt, and glassy carbon disk electrodes. Our results indicate that these hybrid electrodes are reasonably robust, easy to prepare, and extend the capabilities of bare ITO surfaces with respect to the electrochemical response (especially for organic redox probes), while giving up little in the way of optical transparency. Because of these characteristics, hybrid electrodes should be especially suited to many spectroelectrochemical applications.
KW - Absorbance
KW - Cyclic voltammetry
KW - Metal films
KW - Optically transparent electrodes
KW - Spectroelectrochemistry
UR - http://www.scopus.com/inward/record.url?scp=12144291257&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2003.10.025
DO - 10.1016/j.jelechem.2003.10.025
M3 - 学術論文
AN - SCOPUS:12144291257
SN - 1572-6657
VL - 565
SP - 311
EP - 320
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
IS - 2
ER -