A novel “energy fiber” by coaxially integrating dye-sensitized solar cell and electrochemical capacitor

Dye-sensitized solar cell and electrochemical capacitor have been coaxially integrated into a novel “energy fiber” that can simultaneously realize photoelectric conversion and energy storage. A Ti wire substrate modified with perpendicularly aligned titania nanotubes on the surface and horizontally aligned multi-walled carbon nanotube sheet serve as two electrodes in the integrated “energy fiber” device. The “energy fiber” is flexible, and can be woven into various structures such as lightweight textiles to meet the portable facilities in the electronics.

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