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Plane structure hybrid solar cell based on antimony trisulfide compact film

An antimony trisulfide, solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high requirements for thin film experimental equipment, reduced battery efficiency, long preparation time, etc., and achieves easy large-area production, high efficiency , the effect of good crystallinity

Inactive Publication Date: 2017-10-27
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, Sb prepared by the traditional chemical bath deposition method (CBD) 2 S 3 Due to the introduction of water in the film, there are some antimony oxides in the film, which will lead to the generation of defects in the film, cause the recombination of carriers, and reduce the efficiency of the battery
While the vacuum deposition method prepared Sb 2 S 3 Thin films have high requirements for experimental equipment and long preparation time

Method used

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  • Plane structure hybrid solar cell based on antimony trisulfide compact film
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  • Plane structure hybrid solar cell based on antimony trisulfide compact film

Examples

Experimental program
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Effect test

preparation example Construction

[0038] 1 Preparation of precursor solution

[0039] (1) Take 1.37g SbCl 3 , and then drop N-N dimethylamide;

[0040] (2) Stir the solution in step (1) at room temperature for 30 minutes;

[0041] (3) After stirring for 30 minutes, add 0.675g~1.125g of thiourea to the solution, and stir at room temperature for 30 minutes.

[0042] 2 Substrate processing

[0043]The substrate used in the test is conductive glass (ITO conductive glass or transparent flexible plastic, FTO conductive glass or transparent flexible plastic, AZO conductive glass or transparent flexible plastic, which are commercially available products or known technologies). slices for cleaning. Cut the conductive glass sheet into a suitable shape and size, clean it with a detergent, rinse it with tap water, rinse it with deionized water, and then put it in an ultrasonic cleaner to wash it with deionized water, ethanol once, acetone once, and acetone and ethanol for 15 minutes, and finally dried in an oven to o...

Embodiment 1

[0071] (1) Clean the FTO glass slides: first put the glass slides into a solution containing a detergent (such as Liby brand liquid detergent) and soak for 10 minutes, then repeatedly scrub and rinse with clean water; then polish with polishing powder ; Then put them into containers with deionized water, acetone and alcohol for 15 minutes respectively; finally put them in an oven and dry them at 100 degrees to eliminate stress;

[0072] (2) Preparation of electron transport layer: TiO 2 The precursor solution was swirled on the FTO glass substrate at a forward rotation speed of 750 rpm for 12 s, and a rear rotation speed of 4000 rpm for 30 s; the swirled TiO 2 The film was calcined at 550°C for 60min in a muffle furnace;

[0073] (3) Preparation of light absorbing layer: Take 1.37g SbCl 3 and 0.9g of thiourea (Sb:S 1:2) of Sb 2 S 3 The precursor solution is swirled on the conductive glass substrate, and the working conditions are: the forward rotation speed is 750 rpm, the...

Embodiment 2

[0078] (1) cleaning FTO glass sheet: same as embodiment 1;

[0079] (2) Preparation of electron transport layer: same as Example 1;

[0080] (3) Preparation of light absorbing layer: Take 1.37g SbCl 3 and 0.9g of thiourea (Sb:S 1:2) of Sb 2 S 3 The precursor solution is swirled on the conductive glass substrate, and the working conditions are: the forward rotation speed is 750 rpm, the time is 12s, the rear rotation speed is 3000 rpm, and the time is 60s; the swirled Sb 2 S 3 The film was heated on a hot stage at 140°C for 10 min; the spin coating and heating reaction steps were repeated, and the Sb 2 S 3 A layer of Sb was spin-coated on the film 2 S 3 thin film, and then annealed at 340°C for 15min under Ar atmosphere, Sb 2 S 3 The thickness is 580 nm;

[0081] (4) Preparation of hole transport layer: same as Example 1;

[0082] (5) Preparation of electrode: Same as Example 1.

[0083] The performance of the battery is described as Figure 5 Shown: The open circu...

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Abstract

The invention discloses a plane structure hybrid solar cell based on an antimony trisulfide compact film, belonging to the field of film materials and devices. The solar cell comprises a transparent conductive substrate, an electron transport layer, a light absorption layer, a hole transport layer and a metal electrode. According to the light absorption layer, SbCl3 and thiourea with the ratio of 1 to 1.5 to 2.5 is used as a precursor, a compact Sb2S3 film is prepared through spin coating, and the thickness range is from 360 nanometers to 1 micron. The compact Sb2S3 film is used as the light absorption layer to form the plane structure hybrid solar cell, the cost is low, the process simple, the mass production is easy, and compared with a mesoporous structure solar cell, the plane structure solar cell based on the Sb2S3 compact film has the advantages of high repeatability and easy improvement of cell efficiency.

Description

technical field [0001] The invention belongs to the field of thin film materials and devices, in particular to a planar structure hybrid solar cell based on antimony trisulfide dense thin film. Background technique [0002] With the continuous development of new materials and the rapid development of thin-film solar cells, in 2002, Professor Martin Green of Australia proposed the characteristics that materials that will become ideal solar cells in the future should have: the direct bandgap is between 1.1-1.7 eV, and The sunlight spectrum is matched; the material is non-toxic and meets the requirements of environmental protection; the element content of the material is rich and the price is cheap; the thin film preparation technology is easy to control and can realize large-scale manufacturing; good photoelectric conversion efficiency and high stability. [0003] However, at present, most of the inorganic materials in organic / inorganic hybrid solar cells are reported to be to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/12H10K30/00Y02E10/549
Inventor 郑巧程树英王冲冲
Owner FUZHOU UNIV
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