A Comparison of Anodic TiO2 Nanotube Membranes used for Front-side Illuminated Dye-Sensitized Solar Cells
Fatemeh Mohammadpour, Mahmood Moradi, Gihoon Cha, Seulgi So, Kiyoung, Lee, Marco Altomare, Patrik Schmuki
TL;DR
This study compares different fabrication methods for TiO2 nanotube membranes in front-side illuminated dye-sensitized solar cells, demonstrating that optimized potential step treatment significantly improves efficiency due to better dye-loading and electron transport.
Contribution
It introduces an optimized potential step fabrication technique for TiO2 nanotube membranes that enhances DSSC performance compared to previous methods.
Findings
DSSC efficiency exceeds 8% with optimized membranes
Optimized membranes show higher dye-loading
Enhanced electron transport observed in improved membranes
Abstract
In the present work we compare TiO2 nanotube lift-off strategies for the construction of front-side illuminated dye-sensitized solar cells (DSSCs). Anodic nanotube layers were detached from the metallic back contact by using different techniques and transferred onto an FTO substrate. We show that if we use an optimized potential step treatment to fabricate membranes, DSSC cell efficiencies can be significantly increased (>8%). This improved efficiency is ascribed to higher specific dye-loading and enhanced electron transport properties of optimally fabricated TiO2 nanotube membranes.
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