High-temperature annealing of TiO2 nanotube membranes for efficient dye-sensitized solar cells

作者：Mohammadpour Fatemeh; Altomare Marco; So Seulgi; Lee Kiyoung; Mokhtar Mohamed; Alshehri Abdelmohsen; Al Thabaiti Shaeel A; Schmuki Patrik

来源：Semiconductor Science and Technology, 2016, 31(1): 014010.

DOI：10.1088/0268-1242/31/1/014010

• dye-sensitized solar cell
• TiO2 nanotube membrane
• anodization
• high-temperature crystallization
• electron transport

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 degrees 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. Consistent with electron transport time measurements, remarkably enhanced electron mobility is enabled when tube membranes are crystallized at 600 degrees C.

• 出版日期2016-1