Dual-surface treatment method for photoelectric conversion efficiency of barium-stannate-based dye-sensitized solar cell

A technology for photoelectric conversion efficiency and solar cells, which is applied in the field of dye-sensitized solar cells, can solve the problems that photoelectric conversion efficiency needs to be improved, and achieve the effects of improving photoelectric conversion efficiency, high practicability, and low cost

Inactive Publication Date: 2018-01-19
FUZHOU UNIV
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  • Abstract
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Problems solved by technology

However, in the present study, based on BaSnO 3 There are few reports on dye-sensitized solar cells with photoanodes, and the related photoelectric conversion efficiency needs to be improved
At present, there is no simultaneous use of chemical bath deposition (CBD) and TiCl 4 Solution immersion method for BaSnO-based 3 Related patent reports on improving photoelectric conversion efficiency of dye-sensitized solar cells by surface treatment of nanoparticle photoanodes

Method used

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  • Dual-surface treatment method for photoelectric conversion efficiency of barium-stannate-based dye-sensitized solar cell
  • Dual-surface treatment method for photoelectric conversion efficiency of barium-stannate-based dye-sensitized solar cell
  • Dual-surface treatment method for photoelectric conversion efficiency of barium-stannate-based dye-sensitized solar cell

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Embodiment 1

[0022] The double-surface treatment method for improving the photoelectric conversion efficiency of a barium stannate-based dye-sensitized solar cell comprises the following steps:

[0023] (1) BaSnO 3 The preparation method of nanoparticles and slurry: First, dissolve tin tetrachloride pentahydrate and barium chloride in 40-200ml of hydrogen peroxide in equal amounts, wherein tin tetrachloride pentahydrate is 2-5 mmol to obtain a clear solution . Add 25-28 wt % concentrated ammonia water dropwise to the clear solution to adjust the pH of the solution between 9-11 to obtain a white turbid solution. It was transferred to a round bottom flask and heated in a water bath at 50-90°C for 5-8h to obtain a white precipitate. The precipitate was washed three times by centrifugation with deionized water and ethanol, so that the pH of the supernatant was close to neutral, and then dried in an oven at 70 °C for 8 h. Finally, use a muffle furnace to heat up to 500-800°C at a rate of 2°C...

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Abstract

The invention belongs to the technical field of dye-sensitized solar cells, and specifically relates to a dual-surface treatment method for the photoelectric conversion efficiency of a barium-stannate-based dye-sensitized solar cell. The method comprises the steps: employing a water bath method for preparing pure-phase BaSnO3 nano particles, obtaining the pure-phase BaSnO3 nano particles, and applying the pure-phase BaSnO3 nano particles to the anode of the dye-sensitized solar cell; employing a chemical bath deposition method (CBD) and a TiCl4 solution immersion method for the surface treatment of a BaSnO3 nano particle anode film, taking a ruthenium-system dye N719 as a sensitizing agent for assembling the dye-sensitized solar cell, wherein the highest photoelectric conversion efficiencyof the dye-sensitized solar cell is 5.18% under the condition that the light intensity is 100Mw / cm2 and a condition of AM1.5. The method is simple in operation, is low in cost, but greatly improves the efficiency, and is higher in practicality.

Description

technical field [0001] The invention belongs to the technical field of dye-sensitized solar cells, and in particular relates to a double-surface treatment method for improving the photoelectric conversion efficiency of barium stannate-based dye-sensitized solar cells. Background technique [0002] Dye-sensitized solar cells have become one of the most competitive alternatives to silicon-based solar cells due to their simple process, low cost, good stability, and high photoelectric conversion efficiency, and are expected to be widely used in real life. [0003] Cubic perovskite structure BaSnO 3 Belonging to N-type semiconductor materials, it has been applied in thermally stable capacitors, semiconductor humidity and gas sensors. However, in the present study, based on BaSnO 3 There are few reports on dye-sensitized solar cells with photoanodes, and the related photoelectric conversion efficiency needs to be improved. At present, there is no simultaneous use of chemical ba...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 魏明灯谢锋炎李亚峰
Owner FUZHOU UNIV
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