Fully printable mesoscopic solar cells: From dye-sensitized to perovskite

Journal of Material Sciences & Engineering

ISSN: 2169-0022

Open Access

Fully printable mesoscopic solar cells: From dye-sensitized to perovskite

International Conference and Exhibition on Mesoscopic & Condensed Matter Physics

June 22-24, 2015 Boston, USA

Hongwei Han

Wuhan National Laboratory for Optoelectronics, China

Posters-Accepted Abstracts: J Material Sci Eng

Abstract :

Since the first report in 1991, Dye-Sensitized Solar Cells (DSSCs) have been recognized as a promising alternative to commercial silicon solar cells due to their low fabrication cost and relatively high conversion efficiency. A typical DSSC contains a sensitized- TiO2 photoanode, a liquid electrolyte and a platinum plate counter electrode. However, DSSC based on liquid electrolyte have many practical problems such as leakage, desorption of dye, erosion of electrode, which blocks its rapid commercial application. Replacing the liquid electrolyte with a solid-state medium seems to be a solution to these problems. Up to now, the highest efficiency up to 17.9% has been attained with the solid-state-DSSCs assembling with lead iodide perovskite inorganic sensitizers and 7.2% with a new organic D-├Ć┬?-A dye. Unfortunately, the counter electrode of the conventional all-solid-state DSSC is made by evaporating Au or other noble metals, which needs not only expensive noble metals but also costly equipment for high vacuum. Obviously, a low cost counter material and simple technology expects to be developed urgently. With the mesoscopic carbon counter electrode, we developed a stable mesoscopic perovskite solar cells with simpler manufacturing process based on full screen-printing technology with an efficiency of 15.6%, which offers a promising prospect for its commercial application.

Biography :


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