Preparation method of trans-organic-inorganic hybrid perovskite solar cell

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of ITO electrode corrosion, perovskite stability and efficiency effects, etc., and achieve the effects of optimizing photoelectric conversion efficiency, improving conversion efficiency and stable performance.

Pending Publication Date: 2021-05-07
陈云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) was the earliest hole-transporting material used in trans-perovskite devices, but PEDOT:PSS The solution is acidic and has a certain corrosion effect on the ITO electrode. The main reason is that PSS is acidic, and PSS has strong water absorption, and most perovskite materials are unstable in humid environments, so it is difficult for the stability of perovskite. impact on performance and efficiency

Method used

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Embodiment 1

[0024] A method for preparing a trans-organic-inorganic hybrid perovskite solar cell, specifically comprising the following steps:

[0025] S1: Add ITO conductive glass deionized water, then add Alconox lotion powder, heat to 80°C to dissolve the lotion, perform ultrasonication for 30min, then ultrasonically wash with deionized water for 10 times, and finally use acetone and ethanol in sequence They were ultrasonically washed for 25 minutes, dried at 80°C for 30 minutes, and set aside.

[0026] S2: Add PEDOT (poly(3,4-ethylenedioxythiophene)): agarose to dimethyl sulfoxide and N,N-dimethylformamide, and then place the ITO substrate on the homogenizer , the PEDOT: agarose solution was spin-coated on the ITO substrate, and then annealed at 100 ° C for 10 min to form a 10 nm thick PEDOT: agarose film, in which PEDOT (poly(3,4-ethylenedioxythiophene)) and The addition ratio of agarose is 40%:60%; the volume ratio of dimethyl sulfoxide and N,N-dimethylformamide is 1:3.5.

[0027]...

Embodiment 2

[0033] A method for preparing a trans-organic-inorganic hybrid perovskite solar cell, specifically comprising the following steps:

[0034] S1: Add ITO conductive glass deionized water, then add Alconox lotion powder, heat to 90°C to dissolve the lotion, perform ultrasonication for 50min, then ultrasonically wash with deionized water for 16 times, and finally use acetone and ethanol in sequence They were ultrasonically washed for 30 minutes, dried at 90°C for 30 minutes, and set aside.

[0035]S2: Add PEDOT (poly(3,4-ethylenedioxythiophene)): agarose to dimethyl sulfoxide and N,N-dimethylformamide, and then place the ITO substrate on the homogenizer , the PEDOT: agarose solution was spin-coated on the ITO substrate, and then annealed at 120 ° C for 15 min to form a 13 nm thick PEDOT: agarose film, in which PEDOT (poly(3,4-ethylenedioxythiophene)) and The addition ratio of agarose is 45%:55%; the volume ratio of dimethyl sulfoxide and N,N-dimethylformamide is 2:5.

[0036] S2...

Embodiment 3

[0042] A method for preparing a trans-organic-inorganic hybrid perovskite solar cell, specifically comprising the following steps:

[0043] S1: Add ITO conductive glass deionized water, then add Alconox lotion powder, heat to 85°C to dissolve the lotion, perform ultrasonication for 40min, then ultrasonically wash with deionized water for 12 times, and finally use acetone and ethanol in sequence They were ultrasonically washed for 25 minutes, dried at 85°C for 30 minutes, and set aside.

[0044] S2: Add PEDOT (poly(3,4-ethylenedioxythiophene)): agarose to dimethyl sulfoxide and N,N-dimethylformamide, and then place the ITO substrate on the homogenizer , the PEDOT: agarose solution was spin-coated on the ITO substrate, and then placed at 110 ° C for 12 minutes to form a 11nm thick PEDOT: agarose film, in which PEDOT (poly(3,4-ethylenedioxythiophene)) and The addition ratio of agarose is 48%:52%; the volume ratio of dimethyl sulfoxide and N,N-dimethylformamide is 1.4:4.2.

[00...

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Abstract

The invention discloses a preparation method of a trans-organic-inorganic hybrid perovskite solar cell. The trans-organic-inorganic hybrid perovskite solar cell sequentially comprises an ITO conductive glass layer, a hole transport layer, a perovskite light absorption layer, an electron transport layer and an electrode layer from bottom to top. The preparation method comprises the following steps of: cleaning ITO conductive glass; preparing a PEDOT: agarose thin film with the thickness of 10-13 nm, spin-coating the PEDOT: agarose thin film with a PEDOT: PSS solution, and spin-coating the PEDOT: agarose thin film with an aqueous dispersion of NiOx to obtain a NiOx thin film with the thickness of 36-39 nm, so as to obtain a hole transport layer; preparing a perovskite layer; dissolving PCEM in chlorobenzene, and spin-coating the perovskite layer with the obtained solution to obtain an electron transport layer; and finally, evaporating a layer of metal electrode with the thickness of 105-120nm. The perovskite solar cell provided by the invention has relatively high photoelectric conversion efficiency and excellent stability.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a preparation method of a trans-organic-inorganic hybrid perovskite solar cell. Background technique [0002] With the continuous development and progress of society, human beings' demand for energy is also increasing. Compared with the non-renewable and polluting environment characteristics of traditional fossil energy, solar energy is renewable and clean and environmentally friendly. The representative of traditional solar cells is amorphous silicon solar cells, but the production cost of amorphous silicon solar cells is high, the production procedures are cumbersome, and the pollution to the environment is relatively large. Perovskite solar cells are thin-film solar cells that use organic-inorganic hybrid perovskite materials as light-absorbing layers. Due to the outstanding advantages of organic-inorganic hybrid perovskite materials such as high photoelectri...

Claims

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Application Information

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IPC IPC(8): H01L51/48H01L51/46H01L51/42
CPCH10K71/12H10K71/40H10K30/10H10K2102/00Y02E10/549
Inventor 陈云蒋天天
Owner 陈云
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