A double-sided light-transmitting dye-sensitized solar cell photoanode
A technology of solar cells and dye sensitization, applied in the field of photoanode of double-sided light-transmitting dye-sensitized solar cells, can solve the problems of low short-circuit current density of cells, unfavorable large-scale production, disordered carrier transport, etc. The effect of mobility and low recombination rate, light weight, and easy growth preparation
Active Publication Date: 2016-01-20
PEKING UNIV
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Problems solved by technology
Its messy nanostructure leads to disordered carrier transport, which is manifested in the low short-circuit current density of the battery macroscopically.
And the complexity of the structure process makes practical application difficult, which is not conducive to large-scale production
Method used
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Embodiment 1
[0029] Embodiment 1, prepare the photoanode of dye-sensitized solar cell
[0030] 1) Soak stainless steel wire mesh (specification: 635 mesh) in acetone solution, ultrasonically clean for 30 minutes to remove surface organic matter; then put the cleaned stainless steel wire mesh into concentrated sulfuric acid (98% by mass) and hydrogen peroxide volume Soak in a mixed solution with a ratio of 4:1 at 95° C. for 30 minutes, then rinse with deionized water three times to obtain a stainless steel wire mesh with a passivated surface.
[0031] 2) Deposit aluminum-doped zinc oxide nanowire arrays on the surface of passivated stainless steel wire mesh by chemical vapor deposition; the specific method is: mix powder of zinc powder and aluminum trichloride (mass ratio 3:1) Put it into a tube furnace and heat it to 700°C, feed 100 sccm of argon as the carrier gas, 8 sccm of oxygen as the reaction gas, stainless steel wire mesh in the downstream of the gas, and the deposition time is 5 mi...
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Abstract
The invention discloses a double-sided translucent dye-sensitized solar cell photoanode and a preparation method thereof. The photoanode is a stainless steel mesh or pure metal wire mesh deposited with zinc oxide nanowire array or aluminium-doped zinc oxide nanowire array on the surface. The flexible double-sided translucent dye-sensitized solar cell photoanode disclosed by the invention is simple and convenient in preparation method, and takes zinc powder enriched in the natural world as raw material; and the zinc oxide nanowire array is deposited on the stainless steel mesh or pure metal wire mesh, so that the manufacturing cost is greatly lowered. The double-sided translucent dye-sensitized solar cell photoanode is wide in application; if a transparent flexible substrate is used for packaging, real flexibility function can be realized; and under the condition of bending, the photovoltaic property is not obviously reduced. Glass is also can be used for conventional packaging, so that a double-sided light entrance solar cell can be realized. Due to the unique manufacturing technology, large-scale roll-to-roll industrial production can be very easily realized, and the application prospect is very wide.
Description
technical field [0001] The invention relates to a double-sided light-transmitting dye-sensitized solar cell photoanode. Background technique [0002] In order to solve the energy problem, the development of low-cost, easy-to-use, and high-performance new solar cells has been continuously carried out. Dye solar cells have been greatly developed in scientific research and practical applications all over the world due to their low manufacturing cost, high conversion efficiency, and the high abundance of the materials they rely on in the earth's crust. In recent years, dye-sensitized solar cells on flexible substrates have attracted increasing attention due to their good bendability and ease of large-area production. Most flexible dye-sensitized solar cells use metal foils or plastic films as substrates. Stainless steel wire mesh has attracted the attention of the international scientific research field in recent years due to its advantages such as higher surface area to mass ...
Claims
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IPC IPC(8): H01L31/0224H01G9/042H01G9/20
CPCY02E10/542Y02P70/50
Inventor 赵清王伟李恒俞大鹏
Owner PEKING UNIV