Abstract

Among the emerging solar cell technologies, dye-sensitized solar cell (DSSC) is so far most promising in terms of its efficiency, stability and reliability in air compared to organic photovoltaics (OPV) and Quantum dot solar cells. While platinum is used as a primary catalyst material in the counter electrode of a conventional DSSC, nanostructured alternatives could potentially further reduce the cost of these emerging solar cells and enhance the functionalities in flexible platform. In this work, we present the possibility of electrophoretic carbon nanotubes (CNTs) thin film as catalytic counter electrode in DSSC without compromising its efficiency. These electrodes can decrease both material and fabrication cost of DSSC while providing comparable performance with platinum counter electrode. The CNT thin film also has enhanced mechanical flexibility and paves the pathway towards flexible DSSC.

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