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Use of CuO nano-needle/Cu base-plate material in solar dye battery

A technology of solar cells and nanoneedles, which is applied in the field of nanomaterials and nanometers, can solve the problems of few researches and high cost of cathodes, and achieve the effects of low cost, high controllability and simple process

Inactive Publication Date: 2007-09-05
WUHAN UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

However, reducing the cost of dye solar cells and improving the photoelectric conversion efficiency are the difficulties in the current research on dye solar cells and the bottleneck restricting their further promotion and practicality.
[0004] Current research is all focused on improving the anode material of solar cells. The corresponding anode material is Pt / TCO conductive glass (transparent conductive optical glass, fluorine-doped tin oxide glass, effective transmittance greater than 80%), so the cathode Still expensive and little research in this area

Method used

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  • Use of CuO nano-needle/Cu base-plate material in solar dye battery
  • Use of CuO nano-needle/Cu base-plate material in solar dye battery
  • Use of CuO nano-needle/Cu base-plate material in solar dye battery

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Embodiment 1

[0015] (1) Using pulse electrodeposition technology, adopting pulse electrodeposition parameters with output pulse frequency f of 100 Hz and duty cycle r of 10%, electrodeposit a layer of nanocrystalline Cu thin film on the surface of metal Cu substrate; (2) The Cu film was heated in air at different heating temperatures (700°C, 800°C, 900°C, 1000°C) for 1-2 hours, and thermally oxidized to prepare one-dimensional CuO nanoneedles. The results of the scanning electron microscope (SEM) experiment are shown in Figure 1 (in the figure (a) 700°C; (b) 800°C; (c) 900°C; (d) 1000°C); (3) the one-dimensional CuO nanoneedle material / Cu substrate prepared at a heating temperature of 700°C As the cathode material of dye solar cell (the SEM experiment result of cathode material is shown in accompanying drawing 2), TiO 2 Nanocrystalline materials are used as anode materials, and after bipyridyl ruthenium dye (N 3 , (Bu 4 N) 2 Ru(dcbpyH) 2 (NCS) 2 ) of absolute ethanol solution sensitiz...

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Abstract

The invention is concerned with one dimension CuO Nano-needle / Cu substrate material and the application in dye solar cells. The material is produced with pulse electrolysis deposition process. Electrolysis deposit one layer of nanocrystalline Cu film on Cu substrate, put this film into heating stove to get one dimension CuO Nano-needle material under 750+ / -50 DEG C for 1 to 2 hours. Take the one dimension CuO Nano-needle / Cu substrate material as cathode material to solar cell with TCO Conducting glass / TiO2 nanocrystalline / dry / CuO Nano-needle / Cu substrate, and test its efficiency of light to electricityeta. For the work function of CuO(Phi=5.3eV) is close to Pt(Phi=5.65eV), and P type of CuO has high hole mobility (0.1cm<2>V<-1>S<-1>), so it can be used as cathode material to solar cell instead of Pt to greatly reduce the cost, for better application and spread of solar cell.

Description

technical field [0001] The invention relates to the synthesis of a one-dimensional CuO nano needle / Cu substrate material and its application as a cathode material of a dye solar cell, and belongs to the field of nanomaterials and nanotechnology. Background technique [0002] Energy shortage and environmental pollution are two major problems facing mankind at present. With the great development of the world economy, especially the Chinese economy has grown at an average annual rate of 7% to 8% in the past 20 years, which has greatly increased the demand for energy. However, coal, oil, natural gas and other fossil dyes (or primary energy sources) have limited reserves on the earth, not inexhaustible or inexhaustible. Not only that, the use of fossil dyes emits a lot of CO 2 , N x Pollutants such as O, hydrocarbons, and sulfides cause environmental pollution problems such as greenhouse effect, acid rain, and ozone layer destruction, and seriously endanger human physical and ...

Claims

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Application Information

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IPC IPC(8): H01L31/0224H01L31/18H01G9/20H01M14/00
CPCY02P70/50
Inventor 刘曰利陈文潘春旭廖蕾周静
Owner WUHAN UNIV OF TECH
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