Perovskite solar cell composed of orderly-arranged small titanium dioxide balls and preparation method thereof

A technology of solar cells and titanium dioxide, applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve problems such as pollution, large energy consumption and the environment, and achieve the effects of easy preparation, improved light utilization rate, and simple preparation

Active Publication Date: 2015-12-02
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main component of solar cells is silicon-based solar cells. This type of cell has high conversion efficiency and stable performance, but in order to prepare high-quality single crystal silicon materials, it will consume a lot of energy and cause certain environmental pollution.

Method used

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  • Perovskite solar cell composed of orderly-arranged small titanium dioxide balls and preparation method thereof
  • Perovskite solar cell composed of orderly-arranged small titanium dioxide balls and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 200nm polystyrene colloidal beads are configured into a 5%wt aqueous solution, take out 5ml of polystyrene aqueous solution and add 5ml of ethanol to form a new matrix solution with a mixing ratio of 1:1, and finally add 0.1g of surfactant hexadecyl Trimethylammonium bromide, ultrasonically oscillate to obtain a mixed solution; use a pipette gun to take out 100ul of the mixed solution and drop it on a clean conductive glass surface, and spin-coat to prepare a uniform alternating bead layer; prepare the prepared mixture with a uniform colloid The substrate of the small ball layer is moved into the atomic layer deposition chamber to grow titanium dioxide, and the growth thickness is controlled to be 5nm thick; the substrate with grown titanium dioxide is taken out and calcined in an annealing furnace to remove the polystyrene part and control the heating rate The temperature is 1°C / min, and the temperature is raised to 550°C for calcination for 2h. Control the annealing f...

Embodiment 2

[0028] 350nm polystyrene colloidal beads are configured into 5%wt aqueous solution, take out 10ml of polystyrene aqueous solution and add 5ml of ethanol to form a new matrix solution with a mixing ratio of 2:1, and finally add 0.15g of surfactant hexadecyl Trimethylammonium bromide, ultrasonically oscillated to obtain a mixed solution; use a pipette gun to take out 150ul of the mixed solution and drop it on a clean conductive glass surface, and spin-coat to prepare a uniform alternating bead layer; the prepared uniform colloid The substrate of the small ball layer is moved into the atomic layer deposition chamber for the growth of titanium dioxide, and the growth thickness is controlled to be 10nm thick; the substrate of the grown titanium dioxide is taken out and calcined in an annealing furnace to remove the polystyrene part and control the heating rate The temperature is 1°C / min, and the temperature is raised to 550°C for calcination for 2h. Control the annealing furnace to...

Embodiment 3

[0030]500nm polystyrene colloidal beads are configured into a 5%wt aqueous solution, take out 15ml of polystyrene aqueous solution and add 5ml of ethanol to form a new matrix solution with a mixing ratio of 3:1, and finally add 0.2g of surfactant hexadecyl Trimethylammonium bromide, ultrasonically oscillated to obtain a mixed solution; use a pipette gun to take out 200ul of the mixed solution and drop it on a clean conductive glass surface, and spin-coat to prepare a uniform alternating bead layer; The substrate of the small ball layer is moved into the atomic layer deposition chamber for the growth of titanium dioxide, and the growth thickness is controlled to be 15nm thick; the substrate of the grown titanium dioxide is taken out and calcined in an annealing furnace to remove the polystyrene part and control the heating rate The temperature is 1°C / min, and the temperature is raised to 550°C for calcination for 2h. Control the annealing furnace to uniformly cool down to room ...

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Abstract

The invention discloses a perovskite solar cell composed of orderly-arranged small titanium dioxide balls and a preparation method thereof. Regularly-arranged small titanium dioxide balls are used as a carrier of the solar cell, and a perovskite material is used as a light absorber. The small titanium dioxide balls are distributed in a single layer or in multiple layers. The solar cell is prepared through atomic layer deposition. The small titanium dioxide balls form a titanium dioxide frame, and are used as a perovskite carrier and a light utilization layer at the same time. The advantages of different photonic crystals of the small titanium dioxide balls of different sizes are utilized, and the thickness of titanium dioxide is precisely controlled by an atomic layer deposition technology to enable synergy between light utilization and electron transport to be achieved. The utilization rate of light and the electron transport performance are improved, and the performance of the cell is greatly improved. The titanium dioxide structure of the invention can be applied to dye-sensitized cells, quantum dot cells, perovskite cells and other novel solar cells.

Description

technical field [0001] The invention relates to a solar cell and a preparation method thereof, in particular to a perovskite solar cell composed of orderly arranged titanium dioxide spheres and a preparation method thereof. Background technique [0002] With the continuous development of society and the continuous improvement of people's living standards, it is accompanied by a large amount of energy consumption and the deterioration of the environment. Among them, the energy crisis is becoming more and more serious. In order to solve this problem, countries all over the world are vigorously developing new and available clean energy. Solar energy is currently the most widely used new type of energy with the highest cleanliness and safety performance. At present, the main component of solar cells is silicon-based solar cells, which have high conversion efficiency and stable performance, but in order to prepare high-quality monocrystalline silicon materials, a large amount of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/00H01L51/48
CPCH10K71/00H10K71/60H10K30/35H10K30/87H10K30/80Y02E10/549
Inventor 李亮田维卢豪
Owner SUZHOU UNIV
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