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A polymer gel hybrid solar cell

A technology of solar cells and polymers, applied in circuits, capacitors, photovoltaic power generation, etc., can solve the problems of limiting the properties of components and polymerization technology, and the inability of monomers to be polymerized

Inactive Publication Date: 2011-08-03
SONY DEUT GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, some iodides form complexes with the monomers, rendering the monomers unable to polymerize
These limit the nature of the components and polymerization techniques selected for the formation of chemically cross-linked gels

Method used

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  • A polymer gel hybrid solar cell
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  • A polymer gel hybrid solar cell

Examples

Experimental program
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Effect test

Embodiment 1

[0056] In one example, polyethylene oxide [PEO, Mw 400.000] is used for lithium iodide / iodine [LiI / I 2 ] and an inert lithium salt filled ethylene carbonate [EC] / propylene carbonate [PC] mixture. In the PEO polymer gel electrolyte, the solid polymer matrix of PEO provides dimensional stability for the electrolyte, while the high dielectric constants of the solvents PC and EC enable thorough dissociation of the Li salt. The low viscosity of PC and EC provides an ionic environment that favors high ion mobility. This type of polymer gel electrolyte has high ionic conductivity, more than 10 3 S / cm.

Embodiment 2

[0058] Solar cell preparation

[0059] barrier layer

[0060] Preparation by spray pyrolysis: an aerosol dispersion (0.2 M concentration) of the organic precursor titanium acetylacetonate (TAA, Aldrich) in ethanol was sprayed onto a structured FTO-coated glass substrate (in at 450°C) (Geomatic). In order to obtain thin, amorphous, dense TiO 2 layer (approximately 30 nm), the film was tempered at 500 °C for 1 hour in air.

[0061] Nanocrystalline TiO 2 Electrode + dye layer

[0062] Porous TiO 2 layer through the barrier TiO 2 The layer is screen-printed containing TiO with a diameter of 10nm or 20nm, respectively 2 Granules (Solaronix Company) (thickness depends on the mesh size of the sieve). In order to remove organic solvents and surfactants, and make TiO 2 Particles can contact each other, the porous TiO 2 The layers are heated in a first step until 85°C for 30 minutes and then sintered at 450°C for 1 / 2 hour. After cooling to 80°C, the film was placed in an etha...

Embodiment 3

[0075] Photovoltaic cells by dye-sensitized porous TiO 2 A prefabricated gel electrolyte is drop-cast on top of the coated electrodes, and a platinum back electrode is inserted in between.

[0076] Nanocrystalline TiO 2 The thickness of the layer varies from 2 to 20 micrometers and contains particles with diameters of 10 or 20 nanometers. The illuminated area of ​​the battery is about 0.5-0.6cm 2 . As a sensitizer dye, cis-di(thiocyanato)bis(2,2'-dipyridyl-4,4'-dicarboxylate) ruthenium(II) tetrabutylammonium (Ru(bpy) TBA).

[0077] The electron migration and transport process in the battery is shown diagrammatically in figure 2 middle. The light absorbed by the dye molecules injects electrons into TiO 2 (t-10 -12 s) and inject holes into Li / I 2 system (t-10 -8 s). At the platinum back electrode, the formed I 3 - The substance will be reduced to I - , perform the following redox reaction [D. Kuciauskas, M.S. Freund, H.B. Gray, J.R. Winkler, and N.S. Lewis, J.Phys...

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Abstract

The invention relates to a polymer gel hybrid solar cell. In particular, cells are disclosed which reach a light to energy conversion efficiency as high as 9.2 % with 100 mW / cm<2>, and as high as 14.1% with reduced light intensity of 33 mW / cm<2>.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the application date of December 18, 2002, the application number PCT / EP02 / 14510, and the invention name "polymer gel hybrid solar cell" which entered China. The application number of the Chinese invention patent application is 02825683.2, and the invention name is "polymer gel hybrid solar cell". technical field [0002] The present invention relates to polymer gel hybrid solar cells comprising polymer gel electrolytes. Background technique [0003] Monocrystalline solar cells have energy conversion efficiencies as high as ~25%. When the silicon-based crystal is no longer monocrystalline but polycrystalline, the highest efficiency is within ~18%, while the efficiency using amorphous silicon is ~12%. However, the manufacture of silicon-based solar cells is rather expensive, even in the case of amorphous silicon solutions. [0004] Therefore, alternatives based on organic co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01G9/20H01L31/04H01L51/00H01L51/30H01M14/00
CPCY02E10/52H01G9/2031H01G9/2009H01L51/0086Y02E10/542H10K85/344H01L31/04H01G9/20
Inventor G·内勒斯T·米特瓦K·诺达安田章夫
Owner SONY DEUT GMBH
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