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A kind of perovskite solar cell with polyaniline as hole transport layer and preparation method

A technology of hole transport layer and solar cell, which is applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of poor electrical conductivity, complex synthesis process, unfavorable commercial development of perovskite solar cells, etc., to improve solubility, Effect of improving electrical conductivity

Inactive Publication Date: 2018-09-25
TIANJIN VOCATIONAL INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although spiro-OMeTAD can achieve high photoelectric conversion efficiency as the hole transport layer of perovskite solar cells, due to its complex synthesis process, the price is several times that of gold, which is not conducive to the commercial development of perovskite solar cells.
Researchers are constantly looking for other cheap and efficient hole transport materials to replace spiro-OMeTAD. The current research direction is to design and prepare triphenylamine materials similar to spiro-OMeTAD and cheap CuI or CuSCN inorganic semiconductor materials. The electrical conductivity is relatively poor, and it is necessary to design and screen a new material for the hole transport layer. Polyaniline derivative polymer conductive materials have received extensive attention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 183g (2.5mol) of dimethylformamide, 30.1g (0.5mol) of acetic acid, 8.7g (0.05mol) of manganese acetate and 7.7g (0.05mol) of 2-(β-aminoethoxy)aniline into the glass reactor respectively. mol), the reaction solution was cooled to 0-5°C, and 11.9 g (0.07mol) of hydrogen peroxide aqueous solution with a mass percent concentration of 20% was slowly added thereto under stirring, and the oxidative polymerization reaction was carried out at 0-5°C for 12 hours , to oxidatively polymerize the aniline derivatives in the solution to generate polyaniline derivatives; after the completion of feeding the aqueous hydrogen peroxide solution, continue to stir and react at 0-5°C for 4 hours to complete the oxidative polymerization reaction; then raise the reaction temperature to 20-25 ℃ to convert the trivalent or tetravalent manganese produced by the oxidation of hydrogen peroxide into divalent manganese ions.

[0025] Add 51.6g (0.2mol) of hydriodic acid solution with a mass percenta...

Embodiment 2

[0029] Add 183g (2.5mol) of dimethylformamide, 30.1g (0.5mol) of acetic acid, 6g (0.05mol) of cobalt acetate and 2-(β-aminoethoxy)-5-methylaniline into the glass reactor 8.4g (0.05mol), the reaction solution was cooled to 0-5°C, and 10.2g (0.06mol) of hydrogen peroxide aqueous solution with a mass percent concentration of 20% was slowly added thereto under stirring, and the reaction was carried out at 0-5°C Oxidative polymerization reaction for 24 hours, oxidative polymerization of aniline derivatives in the solution to generate polyaniline derivatives; after the hydrogen peroxide solution is fed, continue to stir and react at 0-5°C for 6 hours to complete the oxidation polymerization reaction; then raise the reaction temperature At 20-25°C, the trivalent cobalt generated by the oxidation of hydrogen peroxide is converted into divalent cobalt ions.

[0030] Add mass percent concentration in the solution and be 45% hydrobromic acid solution 36g (0.2mol), stir reaction 1h at roo...

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Abstract

The invention relates to a perovskite solar cell using polyaniline as a hole transport layer, which is composed of a transparent conductive glass, a dense layer, a perovskite light absorbing layer, a hole transport layer, and a metal back electrode, and is characterized in that it uses hydrogen A poly-o-(β-aminoethoxy)aniline derivative co-doped with a halogen acid and a transition metal halide is used as a hole-transport layer, and the chemical composition is PFMX4, where PF stands for poly-o-(β-aminoethoxy)aniline Derivatives; M represents Fe, Co, Ni, Cu, Mn transition metal ions or mixtures thereof; X represents F, Cl, Br, I. The hole transport layer of the invention has conductivity, can reduce the internal resistance of the perovskite solar cell and improve the photoelectric conversion efficiency of the perovskite solar cell.

Description

technical field [0001] The invention relates to a perovskite solar cell with polyaniline as a hole transport layer and a preparation method thereof, belonging to the field of new energy and new materials. technical background [0002] Perovskite solar cells are usually composed of five parts: transparent conductive glass, dense layer, perovskite light absorbing layer, hole transport layer, and metal back electrode. The thickness of the hole transport layer is generally 0-150nm. The photoelectric conversion efficiency of perovskite solar cells without a hole transport layer is usually relatively low. The functions of the hole transport layer include: (1) collecting light from the perovskite absorbing layer The injected holes separate the electron-hole pairs of the perovskite light-absorbing layer; (2) The insertion of the hole transport layer between the perovskite light-absorbing layer and the metal back electrode can improve the Schottky contact , to promote the separation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K30/151H10K30/00Y02E10/549
Inventor 李建生何涛
Owner TIANJIN VOCATIONAL INST
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