9 September 1994 Electrochemical and structural properties of SnO2 and Sb:SnO2 transparent electrodes with mixed electronically conductive and ion-storage characteristics
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Proceedings Volume 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII; (1994) https://doi.org/10.1117/12.185424
Event: Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, 1994, Freiburg, Germany
Abstract
Sb:SnO2 films (body resistance 1.2 X 10-2 (Omega) cm) which were deposited by dip-coating technique via the sol-gel route using SnCl4(DOT)5H2O and SbCl3 precursors have been found to exhibit mixed electronic conductivity and ion-storage characteristics. The Li+ and H+ ion (de)insertion properties of the films were determined from the cyclic voltammetric (CV) measurements from solvents containing LiClO4 (0.1 M) in acetonitrile or water, LiOH (0.1 M) and HClO4 (0.001 - 0.01 M). The particle grain size of Sb:SnO2 and SnO2 films has been determined from the XRD measurements and was found to be larger for undoped (55 - 71 angstroms) than for the Sb doped films (46 - 58 angstroms). The Sb:SnO2 films exhibit effective charges per film thickness (Q(deint)/d) in the range 0.01 - 0.02 mC/cm2nm and outrange by about 3 times the Q/d values obtained for undoped films. Combining the CV results with the in-situ spectroelectrochemical measurements it was concluded that the intercalation process of Li+ ions in Sb:SnO2 films is governed by the layer charging of the inner grain surfaces which overwhelms the underlaying redox changes involving the Sn4+ ions. The performance of the transmissive electrochromic device made of WO3/H3PO4-polyvinyl alcohol (PVA)/Sb:SnO2 was tested and the results presented and discussed.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Boris Orel, U. Lavrencic Stangar, F. Svegl, "Electrochemical and structural properties of SnO2 and Sb:SnO2 transparent electrodes with mixed electronically conductive and ion-storage characteristics", Proc. SPIE 2255, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, (9 September 1994); doi: 10.1117/12.185424; https://doi.org/10.1117/12.185424
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