Development of hybrid organic-inorganic materials for efficient charging/discharging in electrochemical and photoelectrochemical capacitors
2011 (English)In: ECS Transactions, ISSN 1938-5862, no 25, 93-102 p.Article in journal, Meeting abstract (Refereed) Published
A composite system of poly (3,4-ethylenedioxythiophene)/multi-walled carbon nanotubes has been investigated and characterized as a potential charge storage material for coupled dye-sensitized solar cell/electrochemical capacitor systems. The selected material can easily operate in organic media (lithium triflate/propylene carbonate) giving a specific capacitance of 95 F g -1 and energy density of 3.1 Wh kg -1. The combination of the composite material with dye-sensitized solar cell allows to obtain a photo-rechargeable supercapacitor (photocapacitor), destined to work with dies required organic media (here with N 719 dye). The photocapacitor system was built from mesoporous TiO 2 electrode, typical charge relay consisting of iodine/iodide redox couple and two charge storage electrodes separated by a liquid electrolyte. The system was tested under light illumination of 100 mW cm -2 with xenon lamp equipped with cut-off filters eliminating the ultraviolet and infrared part of the spectra.
Place, publisher, year, edition, pages
2011. no 25, 93-102 p.
IdentifiersURN: urn:nbn:se:uu:diva-187992DOI: 10.1149/1.3655515ISBN: 9781607682851OAI: oai:DiVA.org:uu-187992DiVA: diva2:576238
219th ECS Meeting, 1-6 May 2011, Montreal, QC, Canada