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Preparation method for nuclear case structure hybridization electrode

A technology of core-shell structure and hybridization, applied in the field of dye-sensitized solar cells, to achieve the effects of increasing short-circuit current, improving photoelectric conversion efficiency, and simple production process

Inactive Publication Date: 2009-02-18
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, TiO was prepared by reactive DC magnetron sputtering 2 (MgO) core-shell structure hybrid electrodes have not been reported to improve the photoelectric conversion efficiency by increasing the short-circuit current, open-circuit voltage and fill factor of solar cells.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 TiO at 6 μm 2 A 5-20nm MgO layer was deposited on the nanocrystalline film by reactive DC magnetron sputtering to prepare TiO 2 (MgO) core-shell hybrid electrodes.

[0017] Synthesis of TiO by Hydrothermal Method 2 Colloid (see 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 6 μm TiO 2 nanocrystalline film. Using a metal Mg target, sputtering on TiO at a sputtering rate of 1-10nm / min 2 Deposition of 5-20nm MgO on nanocrystalline film by reactive DC magnetron sputtering to prepare TiO 2 (MgO) core-shell hybrid electrodes. Sensitized TiO 2 (MgO) hybrid electrode, drop redox electrolyte, its proportion is: 0.1MLiI, 0.05MI2, 0.6M1, 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 ...

Embodiment 2

[0019] Example 2 TiO at 10 μm 2 Deposition of 5-20nm MgO film on nanocrystalline film by reactive DC magnetron sputtering to prepare TiO 2 (MgO) core-shell hybrid electrodes.

[0020] Hydrothermal Synthesis of TiO 2 Colloid (see 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 10 μm TiO 2 nanocrystalline film. in TiO 2 Preparation of TiO by Reactive DC Magnetron Sputtering Deposition of 5-20nm MgO on Nanocrystalline Films 2 (MgO) core-shell hybrid electrodes. Sensitized TiO 2 (MgO) hybrid electrode, drop redox electrolyte, its proportion is: 0.1MLiI, 0.05MI2, 0.6M1, 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 solar...

Embodiment 3

[0022] Example 3 TiO at 6 μm 2 A 5-20nm MgO layer is deposited on the nanocrystalline film by reactive DC magnetron sputtering to prepare a TiO2 (MgO) core-shell structure hybrid electrode.

[0023] Adopt P25 powder (purchase from Degussa AG of Germany company) to be formulated into colloid (see M.K.Nazeeruddin, A.Kay, I.Rodicio, R.Humphry-Baker, E.Muller, P.Liska, N.Vlachopoulos, and M .Gratzel, J.Am.Chem.Soc., 115,6382(1993).), using powder coating method (seeing A.Kay andM.Gratzel Chem.Mater., 2002,14,2930.) to prepare 6 μm of TiO 2 nanocrystalline film. Using a high-purity metal Mg target, sputtering on TiO at a sputtering rate of 1-10nm / min 2 Deposition of 5-20nm MgO on nanocrystalline film by reactive DC magnetron sputtering to prepare TiO 2 (MgO) core-shell hybrid electrodes. Sensitized TiO 2 (MgO) hybrid electrode, drop redox electrolyte, its proportion is: 0.1MLiI, 0.05MI2, 0.6M1, 2-dimethyl-3-n-propylimidazolium (1,2 methyl-3-n-propylimidazolium iodine), 0.5M 4...

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PUM

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Abstract

This invention discloses a preparation method for a hybrid electrode of kernel-shell structure used in dye sensitive nm crystal solar cells, which takes TiO2 colloid as the material and applies a powder coating method to prepare TiO2 nm crystal film, then carries out DC magnet-controller sputtering to deposit MgO on the TiO2 film and prepares the TiO2(MgO) kernel-shell structure hybrid electrode, which overcomes the shortcoming that the charge complex of TiO2 / electrolyte interface is large and increases the photoelectric conversion efficiency of dye sensitive solar cells.

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 The MgO layer was deposited on the nanocrystalline film by reactive DC magnetron sputtering, and the MgO-modified core-shell hybrid electrode was prepared for 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 dye-sensitized nanocrystalline solar cells, which limits the improvement of photoelectric conversion efficiency. According to the actual research, it can be known that using reactive DC magnetron sputtering on TiO 2 Deposit MgO layer on nanocrystalline film to prepare TiO 2 (core)—MgO (shell) (hereinafter referred to as (TiO 2 (MgO)) hybrid electrode with c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L51/48H01L21/28H01G9/042H01G9/20H01M4/00H01M14/00
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 赵兴中吴素娟韩宏伟台启东张京徐晟
Owner WUHAN UNIV