Abstract
Electrical double layer (EDL) supercapacitors have been constructed using gold coated porous silicon (PSi) electrodes in a 0.25 M TEABF4/PC solution. As a comparison with the PSi, graphite paper, carbon cloth and ITO on glass electrodes have also been tested using the same electrolyte. The capacitors have been characterised using a.c. impedance spectroscopy and cyclic voltammetry (normal staircase mode). Devices using PSi electrodes showed a capacitance of approximately 0.2 mF cm−2 (equivalent to 5 mF g−1). In comparison, devices based on ITO on glass electrodes had a capacitance of 0.76 mF cm−2. Those based on graphite-paper electrodes gave 10 mF cm−2 (equivalent to 131 mF g−1) and those using carbon cloth gave 600 mF cm−2 (equivalent to 35 F g−1).
Similar content being viewed by others
6. References
B.E. Conway, W. Pell, J. Power Sources63, 255 (1996).
S.A. Hashmi, R.J. Latham, R.G. Linford, W.S. Schlindwein, Polymer International47, 28 (1998).
auM.F.Rose, C. Johnston, T. Owens, B. Stephens, Space Power Institute, 231 Leach Centre Auburn, USA.
B.E. Conway, V. Briss, J. Wojtowicz, J. Power Sources66, 1 (1997).
C. Arbizzanni, M. Matragoshino, L. Menegello, Electrochemica Acta41, 21 (1996).
A. Rudge, J. Davey, S. Gottesfeld, J.P. Ferarris, Proc. Electrochem. Soc.74, 93 (1993).
V. Lehmann, J. Electrochem. Soc.140, 283 (1993).
A. Halimaoui, Porous Silicon Data Review, p. 12–22, (1997).
L.T. Canham, Porous Silicon Data Review, p. 83 (1997).
T. Tada, Appl. Phys. Let.70, 2538 (1997).
R.E. Hummel, S.S. Chang, Appl. Phys. Let.61, 1965 (1997).
T. D. Shen, I. Shmagin, C.C. Koch, R.M. Kolbas, M.X. Quan, Phys Rev. B55, 7615 (1997).
R.A. Bley, S.M. Kavclarich, J. Am. Chem. Soc.118, 12461 (1996).
F.P. Romstad, Phys. Rev. B55, 5220 (1997).
R.L. Smith, S.D. Collins, J. Applied Phys.71, R1-R22 (1992).
S.R. Morrison, in: Electrochemistry at Semiconductor and Metal Oxide Interfaces, Plenum Press, London and New York, 1980.
R. Hermo, Porous Silicon Data Review, p. 66 (1997).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Rowlands, S.E., Latham, R.J. & Schlindwein, W.S. Supercapacitor devices using porous silicon electrodes. Ionics 5, 144–149 (1999). https://doi.org/10.1007/BF02375918
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02375918