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Dye sensitization nanocrystalline solar battery based on dendroid compounds and its preparing method

A technology of solar cells and dye sensitization, which is applied in the field of dye-sensitized nanocrystalline solar cells and its preparation, can solve problems such as unsatisfactory effects and decreased ion conductivity of all-solid electrolytes, so as to prolong the service life and avoid leakage and volatilization , Improve the effect of conversion efficiency

Inactive Publication Date: 2006-02-22
FUDAN UNIV
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  • Abstract
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Problems solved by technology

At present, solid electrolytes mainly use solid polymers, p-type inorganic semiconductors, organic hole transport materials, etc., but the ion conductivity of all solid electrolytes drops sharply, and the effect is not ideal. Therefore, how to improve the dye-sensitized nanocrystals of solid electrolytes The efficiency of solar cells has become an important development direction of dye-sensitized nanocrystalline solar cells

Method used

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  • Dye sensitization nanocrystalline solar battery based on dendroid compounds and its preparing method
  • Dye sensitization nanocrystalline solar battery based on dendroid compounds and its preparing method
  • Dye sensitization nanocrystalline solar battery based on dendroid compounds and its preparing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: A titanium dioxide nanocrystalline film electrode is placed in 5 * 10 -4 mol / L N3 dye in ethanol solution for 24 hours to sensitize. Add dropwise 0.1 ml containing 0.05 mol / L I 2 , 0.5 mol / L 4-tert-butylpyridine, 0.5 mol / L LiI, 1-methyl-3-propyl-imidazolium iodonium salt solid electrolyte of 10% first-generation polypropyleneimine dendrimers, and then a piece of Platinum-coated ITO glass is placed on a dye-sensitized nano-TiO2 crystal film and clamped for measurement. at 100mW / cm 2 Under white light irradiation, the open circuit photovoltage of the electrode is 569mV, and the short circuit photocurrent is 2.8mA / cm 2 , fill factor 0.64, energy conversion efficiency 1.0%.

Embodiment 2

[0032] Embodiment 2: A titanium dioxide nanocrystalline film electrode is placed in 5 * 10 -4 mol / L N3 dye in ethanol solution for 24 hours to sensitize. Add dropwise 0.1 ml containing 0.5 mol / l I 2 , 0.5 mole / liter 4-tert-butylpyridine, 0.05 mole / liter LiI, 1-methyl-3-propyl-imidazole iodide solid electrolyte of 3% second-generation polypropylene imine type dendrimers, and then A piece of platinum-coated ITO glass is placed on a dye-sensitized nano-TiO2 crystal film, encapsulated with a heat-sealing adhesive, and then measured. at 100mW / cm 2 Under white light irradiation, the open circuit photovoltage of the electrode is 589mV, and the short circuit photocurrent is 4.6mA / cm 2 , fill factor 0.51, energy conversion efficiency 1.8%.

Embodiment 3

[0033] Embodiment 3: A titanium dioxide nanocrystalline film electrode is placed in 5 * 10 -4mol / L N3 dye in ethanol solution for 24 hours to sensitize. Add dropwise 0.1 ml containing 0.1 mol / l I 2 , 1.0 mol / L 4-tert-butylpyridine, 0.2 mol / L LiI, 1-methyl-3-propyl-imidazolium iodonium salt solid electrolyte of 1% three-generation polypropylene imine dendrimers, and then a piece of Platinum-coated ITO glass is placed on a dye-sensitized nano-TiO2 crystal film, encapsulated with heat-sealing glue, and then measured. at 100mW / cm 2 Under white light irradiation, the open circuit photovoltage of the electrode is 468mV, and the short circuit photocurrent is 3.0mA / cm 2 , fill factor 0.42, energy conversion efficiency 0.59%.

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Abstract

The invention belongs to the field of solar battery technique, especially relating to a full solid electrolyte sensitizing dyestuff nano-crystalline solar battery which is filled by dendritic compound and its preparing method. Wherein, the full solid electrolyte is assembled on the surface of wide forbidden band semi-conductor nanometer crystal film, which has adsorbed the sensitizing dyestuff, to replace the liquid electrolyte. Since the electrolyte uses dendritic compound as filled composite, the leakage and volatilization of solvent is solved to prolong the service life of solar battery.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a dye-sensitized nanocrystalline solar cell and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, energy and the environment have become one of the key issues that need to be solved urgently in the 21st century. Solar energy is an inexhaustible green resource, and it is the best way to solve this problem. Therefore, countries all over the world are competing to carry out research on how to use solar energy, and solar cells are one of the important branches. At present, the application of solar cells is mainly concentrated on monocrystalline silicon and non-silicon solar cells based on semiconductor photovoltaic effect. Although it has high photoelectric conversion efficiency, it is difficult to popularize because of its complicated process, expensive price and demanding materials. In the 1990s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/30H01L51/40H01G9/20H01M14/00
CPCY02E10/542
Inventor 杨红李富友黄春辉
Owner FUDAN UNIV
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