Flexible dye-sensitized solar battery with stainless steel as substrate and preparation method thereof
A technology of solar cells and dye sensitization, applied in the field of solar cells, can solve problems such as high cost and complicated preparation process, and achieve the effects of improving fill factor, good bonding performance, and prolonging electronic life
Inactive Publication Date: 2009-06-03
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
[0004] In order to solve the disadvantages of complex preparation process and high cost of existing stainless steel-based dye cells, the present invention provides a flexible dye-sensitized solar cell based on stainless steel and a preparation method thereof, which has a relatively simple preparation process and a battery The advantages of high conversion efficiency and low cost
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Embodiment 1
[0022] ① Dense SiO on stainless steel 2 Preparation of thin films and pure Ti thin films:
[0023] Select stainless steel with a thickness of 0.1-0.2mm as the substrate, first ultrasonically clean the stainless steel, and the sputtering vacuum reaches 7.0×10 -4 After Pa, use SiO 2 The target and titanium film are sputtered at 105-300W sputtering power, 0.5Pa argon pressure, and substrate temperature at room temperature-1000°C. The time for sputtering insulating thin film and titanium film is 5-15min and 0.5h-2h respectively.
[0024] ② Flexible TiO 2 Preparation of nanotube / stainless steel photoanode:
[0025] The sputtered sample was nested on a metal fixture as an anode, and then the entire sample was completely immersed in the electrolyte for anodic oxidation at room temperature; the platinum sheet was used as the cathode, and the distance between the two electrodes was 30cm. 4 F is anodized in the electrolyte, the constant voltage is 10-60V, and the reaction time is 0....
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Abstract
The invention discloses a flexible dye-sensitized solar battery with stainless steel as the substrate and a preparation method thereof. The battery adopts seven-layer composite structure which comprises a flexible stainless steel substrate layer, an insulation film layer, a titanium film layer, a titanium dioxide natural layer, a titanium dioxide nano tube array layer, an electrolyte layer and a flexible counter electrode which are arranged in sequence from the bottom layer to the top layer, and dye molecules are embedded into the titanium dioxide nano tube of the titanium dioxide nano tube array layer. The insulation film layer is prepared on the flexible stainless steel substrate layer, then, the titanium film layer is prepared on the surface of the insulation film layer, and a stainless steel flexible photo-anode with the stainless steel substrate layer/insulation film layer/Ti film layer/TiO2 natural layer/TiO2 nano tube array layer can be obtained through anodic oxidation in water-base or organic electrolyte; after the heat treatment, dye sensitization is performed to the obtained stainless steel flexible photo-anode and electrolyte is dripped into the photo-anode, and after encapsulation, the flexible dye-sensitized solar battery with stainless steel as the substrate is obtained. The invention has the advantages of simpler preparation technique, high battery conversion efficiency and low cost.
Description
technical field [0001] The invention relates to a solar cell, in particular to a flexible dye-sensitized solar cell. Background technique [0002] As a clean and renewable energy source, solar energy is considered to be the best substitute for traditional energy sources. At present, the solar cell industry is developing very rapidly, but because the commonly used silicon cell panels are heavy, fragile, high-cost and cannot be folded, it is extremely inconvenient to carry and transport, which severely limits its scope and field of application. With the continuous advancement of science and technology, new breakthroughs continue to appear in solar cells, and flexible dye-sensitized TiO 2 The low price and simple preparation process of solar cells (abbreviation: dye cells) point out a feasible way for us to make them high-efficiency, portable and energy-saving batteries that can be used anytime and anywhere. [0003] At present, most of the flexible dye batteries studied use ...
Claims
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IPC IPC(8): H01G9/20H01M14/00
CPCH01G9/2031Y02E10/542H01G9/2059H01G9/2095Y02P70/50
Inventor 陶杰汤育欣徐娟邓杰汪涛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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