TiO2 Nanotubes and Their Application in Dye-sensitized Solar Cells

Overview

Journal Nanoscale

Specialty Biotechnology

Date 2010 Jul 22

PMID 20648363

Citations 38

Authors

Poulomi Roy

Doohun Kim

Kiyoung Lee

Erdmann Spiecker

Patrik Schmuki

Affiliations

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Abstract

The present article reviews the current status of using TiO(2) nanotubes in Grätzel-type, dye-sensitized solar cells and extends the overview with the latest results and findings. Critical factors in tube geometry (length, diameter, top morphology), crystal structure (amorphous, anatase, rutile) as well as factors affecting dye loading or electron mobility are addressed. The highest solar cell efficiencies today for pure nanotube systems reach approximately 4% while for some mixed systems, around 7% has been reported. For both systems significant room for enhancement is anticipated and some key points and strategies for improvement are outlined.

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