ZnO nanotube based dye-sensitized solar cells.

Martinson, Alex B F; Elam, Jeffrey W; Hupp, Joseph T; Pellin, Michael J · Nano Lett · 2007

basic_science · Level V

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Abstract

We introduce high surface area ZnO nanotube photoanodes templated by anodic aluminum oxide for use in dye-sensitized solar cells (DSSCs). Atomic layer deposition is utilized to coat pores conformally, providing a direct path for charge collection over tens of micrometers thickness. Compared to similar ZnO-based devices, ZnO nanotube cells show exceptional photovoltage and fill factors, in addition to power efficiencies up to 1.6%. The novel fabrication technique provides a facile, metal-oxide general route to well-defined DSSC photoanodes.

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