A thin film-integrated device was constructed consisting of photovoltaic layers combined with additional layers to store charge in real time within the same device. In our design, a dye-sensitized solar cell and capacitor layers are integrated by a double-anodized titanium plate, which consists of TiO 2 nanotubes grown on either side by electrochemical anodization. The combination device can act either as an independent solar cell, a capacitor, or as a solar cell/capacitor device. The results presented here illustrate the capacitive behavior of high surface area nanotubular metal oxide films, with an achieved capacitance of 140 μF cm-2. Copyright © 2012 John Wiley & Sons, Ltd. This study shows the development of an integrated system, which can simultaneously generate and store electricity from a dye-sensitized solar cell. A capacitor is integrated along with the solar cell; this directly charges upon illumination and discharges whenever required. The present study shows a simple and inexpensive method of developing an integrated system, which could replace an independent solar cell and battery system for generation and storage. Copyright © 2012 John Wiley & Sons, Ltd.
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, “Design and development of an integrated device consisting of an independent solar cell with electrical storage capacity”, Progress in Photovoltaics: Research and Applications, vol. 21, pp. 1153-1157, 2013.