Post-decoration method for dye sensitization light anode of dye sensitization solar battery |
Title: |
Post-decoration method for dye sensitization light anode of dye sensitization solar battery |
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Application Number: |
200710119311 |
Application Date: |
2007/07/20 |
Announcement Date: |
2008/01/30 |
Pub. Date: |
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Publication Number: |
101114680 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
H01L 31/18H01L 51/48H01L 21/283H01G 9/04H01G 9/20H01M 14/00H01M 4/04 |
Applicant(s): |
Beijing Suoertaike Energy Technologies Institute |
Inventor(s): |
Qiu Yong, Luo Fen, Wang Liduo, Wu Xueming, Wu Hua |
Key Words: |
Post-decoration method, dye sensitization, light anode, solar battery |
Abstract: |
A later-modified method for dye-sensitized photo anode in a dye-sensitized solar cell belongs to the field of dye-sensitized solar cell, which is characterized in that after complement absorbing dye of a prepared nanometer porous TiO2 photo anode, the dye-sensitized photo anode is modified with metal compound layer, and the later-modified method of dye-sensitized photo anode has two advantages: on one hand, preventing agglomeration of dye through exchanging of in-situ proton in order to reduce backward composition of electrodes injected through TiO2 guiding belt and an oxidation-reduction pair in electrolyte and improve photoelectric conversion efficiency of solar cell; on the other hand, separating TiO2 and electrolyte in space to restrain solvent process of dye desorbing from surface of TiO2 and dissolving into electrolyte and preventing electrolyte from being degraded by TiO2 with a good photo-catalysis performance in order to improve stability of solar cell, and after being modified by metal compound layer, the dye-sensitized solar cell improves the photoelectric conversion efficiency by 20 percent and the stability of unsealed battery largely surpasses battery without later-modified layer. |
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