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A making method for impurity pole of dye-sensitized solar battery

A technology for solar cells and dye sensitization, which is applied in the field of dye-sensitized solar cells to achieve the effects of improving photoelectric efficiency, improving surface structure and photoelectric activity, and improving efficiency

Inactive Publication Date: 2009-06-17
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And using reactive direct current magnetron sputtering, through TiO 2 Alkaline Al deposited on the surface of nanocrystalline film 2 o 3 electrically insulating layer to prepare TiO 2 (Al 2 o 3 ) hybrid electrode (anatase phase TiO 2 pH = 6.2, Al 2 o 3 pH=9), while improving the short-circuit current, open-circuit voltage and fill factor of the battery, and the research on improving the photoelectric conversion efficiency has not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 TiO at 8 μm 2 Deposition of ~26nm Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 layer, prepared as TiO 2 (Al 2 o 3 ) hybrid electrode.

[0017] Synthesis of TiO by Hydrothermal Method 2 Colloids (seeing C.J..Barbe, F.Arendse, P.Comte, M.Jirousek, F.Lenzmann, V.Shklover and M.Gratzel, J.Am.Ceram.Soc 80(12)3157(1997).), using Powder coating method (see A.Kay and M.Gratzel Chem.Mater., 2002, 14, 2930.) to prepare 8 μm TiO 2 nanocrystalline film. Using a metal Al target, sputtering on TiO at a sputtering rate of 3-10nm / min 2 Deposition of ~26nm Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 , prepared as TiO 2 (Al 2 o 3 ) hybrid electrode. Sensitized TiO 2 (Al 2 o 3 ) hybrid electrode, drop redox electrolyte, the ratio is: 0.1 MLiI, 0.05 MI2, 0.6 M1, 2-dimethyl-3-n-propylimidazolium (1,2 methyl--n-propylimidazolium iodine), 0.5M 4-tertbutylpyridine (4-tert-butylpyridine), the solvent is propylene car...

Embodiment 2

[0019] Example 2 TiO at 10 μm 2 Deposition of 18nm Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 film, prepared TiO 2 (Al 2 o 3 ) hybrid electrode.

[0020] Hydrothermal Synthesis of TiO 2 Colloid (see C.J.Barbe, F.Arendse, P.Comte, M.Jirousek, F.Lcnzmann, V.Shklover and M.Gratzel, J.Am.Ceram.Soc 80(12)3157(1997).), using powder Coating method (see A.Kay and M.Gratzel Chem.Mater., 2002, 14, 2930.) to prepare 10 μm TiO 2 nanocrystalline film. in TiO 2 Deposition of 18nm Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 , to prepare TiO 2 (Al 2 o 3 ) hybrid electrode. Sensitized TiO 2 (Al 2 o 3) hybrid electrode, drop redox electrolyte, the ratio is: 0.1 MLiI, 0.05 MI2, 0.6 M1, 2-dimethyl-3-n-propylimidazolium (1,2 methyl-3-n-propylimidazolium iodine) , 0.5M 4-tertbutylpyridine (4-tert-butylpyridine), the solvent is propylene carbonate. Cover the counter electrode and assemble it into a dye-sensitized nanocrystalline...

Embodiment 3

[0022] Example 3 TiO at 10 μm 2 Deposition of 18nm Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 layer, prepared as TiO 2 (Al 2 o 3 ) hybrid electrode.

[0023] Adopt P25 powder (purchase from Degussa AG of Germany company) to be formulated into colloid (seeing M.K.Nazeeruddin, A.Kay, I.Rodicio, R.Humphry-Baker, E.Mu`ller, P.Liska, N.Vlachopoulos, and M .Gratzel, J.Am.Chem.Soc., 115,6382(1993).), using powder coating method (seeing A.Kay and M.GratzelChem.Mater., 2002,14,2930.) to prepare 10 μm of TiO 2 nanocrystalline film. Using a high-purity metal Al target, sputtering on TiO at a sputtering speed of 3-10nm / min 2 Deposition of 18nm Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 , prepared as TiO 2 (Al 2 o 3 ) hybrid electrode. Sensitized TiO 2 (Al 2 o 3 ) hybrid electrode, drop redox electrolyte, the ratio is: 0.1 MLiI, 0.05 MI2, 0.6 M1, 2-dimethyl-3-n-propylimidazolium (1,2 methyl-3-n-propylimidazolium iodine) ...

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Abstract

The invention is concerned with the hybridization electrode preparation method of the dye sensitize solar cell, the characteristic is: reacts direct current magnetron sputtering deposition Al2O3 layer on the TiO2 nanometer crystal film; prepares TiO2(Al2O3) hybridization electrode. The method can improve the short circuit current of the dye sensitize nanometer crystal solar cell, the opening circuit voltage and the filling factor, which is a effective method with simple technics, low cost.

Description

technical field [0001] The invention belongs to the research field of dye-sensitized solar cell nanocrystalline film, and relates to the use of TiO 2 Deposition of Al on Nanocrystalline Films by Reactive DC Magnetron Sputtering 2 o 3 layer, the preparation of Al 2 o 3 The modified hybrid electrodes are applied in dye-sensitized solar cells. Background technique [0002] The theoretical photoelectric conversion efficiency of N719-sensitized liquid electrolyte dye-sensitized nanocrystalline solar cells is 14%, while the highest value reported so far is only about 11%. This is due to the large amount of charge recombination in the dye-sensitized nanocrystalline solar cells, which limits the improvement of the photoelectric conversion efficiency of the cells. [0003] Dye-sensitized nanocrystalline solar cells under light conditions, TiO 2 The charge recombination at the / electrolyte interface dominates the entire cell, limiting the improvement of photoelectric conversion ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L51/48H01L21/283H01G9/04H01G9/20H01M14/00H01M4/04
CPCY02E60/12Y02E10/542Y02E10/549Y02E60/10Y02P70/50
Inventor 赵兴中吴素娟韩宏伟台启东张京徐晟周聪华杨英
Owner WUHAN UNIV