Synthesis method of ion conjugated polyelectrolyte material and application of ion conjugated polyelectrolyte material in perovskite solar cell

A technology of conjugated polyelectrolyte and perovskite, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problem of low power conversion efficiency

Pending Publication Date: 2021-10-01
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second-generation thin-film solar cells made of CdTe, CIGS, and amorphous silicon, whose layer thickness ranges from a few nanometers to tens of microns, have a lower cost than the first-generation crystalline silicon solar cells. The cost, but the power conversion efficiency (PCE) is low

Method used

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  • Synthesis method of ion conjugated polyelectrolyte material and application of ion conjugated polyelectrolyte material in perovskite solar cell
  • Synthesis method of ion conjugated polyelectrolyte material and application of ion conjugated polyelectrolyte material in perovskite solar cell
  • Synthesis method of ion conjugated polyelectrolyte material and application of ion conjugated polyelectrolyte material in perovskite solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0022] Synthesis of fluorenyl ion conjugate polymer solution FF-BOC:

[0023] The reaction equation is as follows:

[0024]

[0025] Compound 1 synthesis

[0026] 10 g of hydrazine and 0.15 g of FeCl3 were dissolved in 50 ml of chloroform, and the solution temperature was reduced to 0 ° C, then add 6.46 mL of BR2; then slowly increased to room temperature after the dropwise addition was completed, and stirred for 2 h. Post treatment: neutralized with a saturated sodium hydrogen sulfite solution and the resulting mixture was extracted three times with 20 ml of dichloromethane. The combined organic phase was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. No further purification was required, and the white solid compound was obtained, and the yield was 95%. 1 H NMR (400MHz, CDCL 3 Δ (PPM): 7.67 (S, 2H), 7.61 (D, 2H), 7.50 (D, 2H), 3.88 (S, 2H).

[0027] Compound 2 synthesis

[0028] 6 g of compound 1,5.16 g of methyl acrylate, 600 mg tet...

Embodiment example 2

[0040] Preparation and characterization of perovskite solar cells:

[0041] (1) Etch of 1.5 cm x 1.5 cm ITO substrate using dilute hydrochloric acid and zinc powder, after rubbing with cotton balls, rinsed with water, deionized water, acetone, isopropanol, 15min, washed, blow it with nitrogen Dry, UV-O 3 Among them for 20 min.

[0042] (2) Standard device ITO / SNO 2 / Mapbi 3 Preparation of / Spiro-OmetAd / Au:

[0043] First SNO first 2 Spin coated to the treated ITO substrate, annealed 10-40 min under the conditions of 100-150 ° C; a good PBI 2 Mixed solution with MAI DMSO / DMF to Sno 2 The film is annealed at 80-130 ° C for 10-20 min under the conditions of 80-130 ° C; finally Spiro-Ometad at 4000 rpm, 30s, and the Au film is 80 nm.

[0044] (3) FF-BOC as a battery ITO / SNO for interface transport materials 2 / Mapbi 3 / FF-BOC / Spiro-Omet / Au Preparation:

[0045] The steps are the same as above (1) and (2), and the FF-BoC is introduced into the interface between the calciu...

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Abstract

According to the invention, a fluorenyl ion conjugated polyelectrolyte material is mainly used as an interface material and is used between perovskite and a hole transport layer of a perovskite solar cell with an upright structure; the quality of the modified perovskite layer is obviously improved, the grain boundary is reduced, the surface is uniform and regular, and the stability to water and oxygen is obviously improved; and the prepared perovskite layer solar cell has excellent photoelectric conversion efficiency and stability. The potential and wide application prospect of the material in the field of perovskite solar cells is shown; and in the formula, R is 1-16 alkyl straight chains and branched chains.

Description

Technical field [0001] The present invention relates to chemical structural design, synthesis and its application of a type of fluorenyl ion conjugate polyelectrolyte material as a perovskite solar cell interface material. Background technique [0002] Solar cells are a device device that converts solar energy into electrical energy, is an important part of future human acquisition energy. Solar cells can be divided into the first generation of silicon solar cells (SC) based on the stage of development, and the primary technical structure is a solar cell with silicon as a matrix material, including single crystal silicon, polysilicon solar cell. The second generation thin film solar cell made of CDTE, CIGS, and amorphous silicon has a layer thickness range from several nanometers to tens of micrometers, compared to the first generation of crystal silicon solar cells, the second generation thin film solar cell has a more low Cost, but power conversion efficiency (PCE) is low. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/10H01L51/42
CPCC08G61/10C08G2261/124C08G2261/18C08G2261/143C08G2261/1412C08G2261/91C08G2261/512C08G2261/596C08G2261/59H10K30/10Y02E10/549
Inventor 高德青徐文亭
Owner NANJING UNIV OF TECH
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