High-Temperature Annealing of TiO2 Nanotube Membranes for Efficient Dye-Sensitized Solar Cells

Abstract

We fabricate photo-anodes by transferring anodic TiO2 nanotube membranes in tube-top-down configuration on FTO glass, and use them for constructing frontside illuminated dye-sensitized solar cells. Prior to solar cell construction, the tube-based photo-anodes are crystallized at different temperatures (400-800°C), and the effects of tube electron transport properties on the photovoltaic performance of the solar cells are investigated. We show that improved solar cell efficiencies (up to ca. 8.0%) can be reached by high-temperature treatment of the tube membranes. Consistently with electron transport time measurements, remarkably enhanced electron mobility is enabled when tube membranes are crystallized at 600°C.

Published 1 October 2015, 2016 IOP Publishing Ltd, Semiconductor Science and Technology, Volume 31, Number 1

References in corpus (5)

• One-dimensional Titanium Dioxide Nanomaterials: Nanotubes
• Anodic TiO2 nanotube layers: why does self-organized growth occur - A mini review
• Hierarchical DSSC structures based on single walled TiO2 nanotube arrays reach back-side illumination solar light conversion efficiency of 8%
• Enhanced Performance of Dye-Sensitized Solar Cells based on TiO2 Nanotube Membranes using Optimized Annealing Profile
• A Comparison of Anodic TiO2 Nanotube Membranes used for Front-side Illuminated Dye-Sensitized Solar Cells

Cited by in corpus (2)

• Aligned metal oxide nanotube arrays: key-aspects of anodic TiO2 nanotube formation and properties
• Transparent TiO2 Nanotubes Arrays Directly Grown on Quartz Glass Used in Front- and Back-Side Irradiation Configuration for Photocatalytic H2 Generation