A kind of integrated device of solar cell and supercapacitor and preparation method thereof

Abstract

The invention belongs to the technical field of energy conversion and storage devices, and particularly relates to an all-solid fibrous integrated device, of a coaxial structure, of a dye-sensitized solar cell and a super capacitor, and a preparation method of the integrated device. A titanium wire with orderly titanium dioxide nanotubes growing on the anodic oxidized surface and carbon nano tube films arranged in order are adopted to serve as the two poles of the solar cell and the two poles of the super capacitor, and a crystal solid electrolyte or a polymer gel electrolyte is clamped and molded between every two poles to serve as the solid electrolyte of the dye-sensitized solar cell and the solid electrolyte of the super capacitor respectively. The integration of the solid dye-sensitized solar cell and the super capacitor is achieved on the titanium wire, and the integrated device integrates the functions of energy conversion and storage. Meanwhile, the fibrous integrated device has good flexibility, and is weaved and integrated into other electronic devices easily, thereby having good application prospects.

Description

technical field [0001] The invention belongs to the technical field of miniature energy conversion and storage devices, and in particular relates to an integrated device of an all-solid-state coaxial structure fibrous dye-sensitized solar cell and a supercapacitor and a preparation method thereof. Background technique [0002] Portable electronic devices are becoming more and more important in today's life, and will become the dominance of future life. 1-4 However, traditional planar energy conversion or energy storage devices cannot effectively meet the requirements of portable devices for light weight and deformability. Thus, a lot of research work has been devoted to the development of linear solar cells or energy storage devices recently. 5-9 In terms of linear solar cells, both dye-sensitized solar cells and polymer solar cells have been reported. Polymer solar cells do not contain liquid components and have high stability, but their energy conversion efficiency is ve...

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Problems solved by technology

20 However, the two electrodes of the structure are easy to detach during the bending process, and the liquid electrolyte in the dye-sensitized solar cell is easy to penetrate into the supercapacitor, which seriously affects the overall stability of the device.

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