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Biologic solar cell having three-layer chlorophyll structure and preparation method thereof

A solar cell and chlorophyll technology, applied in photovoltaic power generation, photosensitive equipment and other directions, can solve problems such as limiting cell efficiency and limited charge extraction capability, and achieve the effects of simple synthesis route, improved carrier mobility, and low production cost

Active Publication Date: 2019-06-07
储天新能源科技(长春)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this double-layer chlorophyll biobattery has a limited ability to extract charges, which limits its battery efficiency.

Method used

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  • Biologic solar cell having three-layer chlorophyll structure and preparation method thereof
  • Biologic solar cell having three-layer chlorophyll structure and preparation method thereof
  • Biologic solar cell having three-layer chlorophyll structure and preparation method thereof

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preparation example Construction

[0068] The invention provides a method for preparing a biological solar cell with a three-layer chlorophyll structure, which specifically includes the following steps:

[0069] 1) Treatment of transparent conductive glass cathode:

[0070] Treat the cleaned transparent conductive glass with ozone for 30 minutes;

[0071] 2) Preparation of electron transport layer:

[0072] Place the transparent conductive glass treated in step 1) on a homogenizer to spin-coat the electron transport layer. The spin-coating process is 4500rpm / min and rotate for 30s to form a layer of titanium oxide precursor film, and then immediately place it on the hot stage for annealing treatment, the annealing temperature and time are 200°C for 30 minutes;

[0073] 3) Preparation of dye-sensitized mesoporous semiconductor layer:

[0074] Spin-coat the mesoporous semiconductor layer on the conductive substrate that has been annealed and lowered to room temperature on a homogenizer. The spin-coating proces...

Embodiment 1

[0090] The FTO etched on the transparent substrate was ultrasonically treated twice for 30 minutes with cleaning agent, deionized water, alcohol, acetone, and isopropanol, and then prepared TiO 2 For the precursor solution, 100 μL of isopropyl titanate was dissolved in 1 mL of absolute ethanol containing 10 μL of hydrochloric acid, and stirred at room temperature for 5 minutes before use. Dissolve 1.97 mg of titanium dioxide nanoparticles (PST-18NR) in 1 mL of absolute ethanol and stir overnight at room temperature to obtain mesoporous TiO 2 solution. 40 μL of titanium tetrachloride solution (1.5 g / mL) was dissolved in 10 mL of deionized water, and stirred at room temperature for 5 minutes. 0.99mg Chl-C1 and 0.01mg Chl-C2 chlorophyll dyes were dissolved in 10mL absolute ethanol, and stirred at room temperature in the dark until dissolved. In a glove box, dissolve Chl-A in tetrahydrofuran and chloroform (4:1 volume ratio), stir at room temperature until dissolved, and prepare...

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Abstract

The invention relates to the technical field of photoelectric materials, in particular to a biologic solar cell having a three-layer chlorophyll structure and a preparation method thereof. The biologic solar cell having the three-layer chlorophyll structure comprises a transparent conductive glass cathode, an electron transport layer, a dye-sensitized mesoporous semiconductor layer, a light simulation system I layer, a light simulation system II layer and a metal anode in order from bottom to top. The light simulation system I layer and the light simulation system II layer are phyllins films with different energy levels, and the energy level of the light simulation system I layer is higher than the energy level of the light simulation system II layer; and the dye-sensitized mesoporous semiconductor layer is anti-form 3<2>-carboxyl-pyropheophorbide acid-a and anti-form 8<2>-carboxyl-pyropheophorbide acid-a co-sensitized mesoporous titanium dioxide. The biologic solar cell having the three-layer chlorophyll structure has the highest photoelectric conversion efficiency up to 4.1% to achieve more than three-times photoelectric conversion efficiency compared to a dual-layer battery. Thepreparation method is simple in preparation process and low in production cost.

Description

technical field [0001] The invention relates to the technical field of photoelectric materials, in particular to a biological solar cell with a three-layer chlorophyll structure and a preparation method thereof. Background technique [0002] Today's society is facing the dual challenges of energy shortage and environmental pollution. The development of the times urgently requires us to develop renewable and clean energy. Because solar energy is environmentally friendly, renewable, and widely distributed, more and more attention has been paid to the development of new solar cells. Biological solar cells have good flexibility, light weight, simple preparation process and low cost, and have been favored by people in the industry. [0003] Chlorophyll and its derivatives, as the most abundant natural photosynthetic dyes on earth, have the ability to absorb visible and near-infrared light, charge transfer and energy transfer. At the same time, when the solvent volatilizes rapid...

Claims

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Application Information

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IPC IPC(8): H01G9/20
CPCY02E10/542
Inventor 王晓峰赵文婕于大明尤霆孟令军
Owner 储天新能源科技(长春)有限公司
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