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Perovskite photoactive material, preparation method thereof and solar cell device

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of low photoelectric conversion efficiency, low carrier mobility, poor battery repetition performance, etc., to improve carrier mobility and filling factor, repetition rate Good performance and improved photoelectric conversion efficiency

Active Publication Date: 2022-07-15
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the perovskite solar cells have poor reproducibility
[0006] In the prior art, the common defects of perovskite solar cells are slow nucleation of perovskite light-absorbing active layer, poor crystallization, low fill factor, and low carrier mobility, resulting in poor battery repeatability and low photoelectric conversion efficiency. not effectively

Method used

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  • Perovskite photoactive material, preparation method thereof and solar cell device
  • Perovskite photoactive material, preparation method thereof and solar cell device

Examples

Experimental program
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Effect test

Embodiment 1

[0101] This embodiment provides a perovskite photoactive material, and the precursor of the perovskite photoactive material includes 8.6 parts by weight of amylamine iodide, 41.5 parts of lead iodide and 11.1 parts of iodomethylamine.

[0102] This embodiment provides a solar cell device, and the structure diagram of the solar cell device is as follows: figure 1As shown, it includes a first electrode 1 (indium tin oxide transparent conductive glass, with a thickness of 5 mm), a hole transport layer 2 (poly[bis(4-phenyl) (2,4,6-trimethylbenzene) base) amine] layer with a thickness of 25 nm), a perovskite photoactive layer 3 (with a thickness of 320 nm), an electron transport layer 4 (with a thickness of 28 nm) and a second electrode 5 (silver layer with a thickness of 80 nm); the electrons The transport layer includes a fullerene layer with a thickness of 20 nm and a 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline layer with a thickness of 8 nm; the fullerene layer is close to th...

Embodiment 2

[0108] This embodiment provides a perovskite photoactive material, and the precursor of the perovskite photoactive material includes 17.2 parts by weight of amylamine iodide, 83 parts of lead iodide and 22.2 parts of iodomethylamine.

[0109] This embodiment provides a solar cell device, which includes a first electrode (indium tin oxide transparent conductive glass, with a thickness of 5 mm), a hole transport layer (poly[bis(4-phenyl) ( 2,4,6-trimethylphenyl)amine] layer with a thickness of 25 nm), a perovskite photoactive layer (with a thickness of 320 nm), an electron transport layer (with a thickness of 28 nm) and a second electrode (silver layer with a thickness of 28 nm) 80nm); the electron transport layer includes a fullerene layer with a thickness of 20nm and a 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline layer with a thickness of 8nm; The lerene layer is close to the perovskite photoactive layer.

[0110] This embodiment provides a method for preparing the solar cel...

Embodiment 3

[0112] This embodiment provides a perovskite photoactive material, and the precursor of the perovskite photoactive material includes 8.6 parts by weight of amylamine iodide, 41.5 parts of lead iodide and 11.1 parts of iodomethylamine.

[0113] This embodiment provides a solar cell device, which is different from Embodiment 1 only in that the material of the second electrode is gold, and other structures, components and dosages are the same as those of Embodiment 1.

[0114] This embodiment provides a method for preparing the solar cell device, which differs from Embodiment 1 only in that in step (3), metal gold is evaporated on the surface of the electron transport layer, and other steps and parameters are the same as those in Embodiment 1 .

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Abstract

The invention provides a perovskite photoactive material, a preparation method thereof and a solar cell device, and a precursor of the perovskite photoactive material comprises the following components in parts by weight: 5-20 parts of pentylamine iodine, 40-90 parts of lead iodide and 10-25 parts of iodine methylamine. The preparation method of the perovskite photoactive material provided by the invention comprises the following steps: coating the surface of a substrate with a precursor solution, and annealing to obtain the perovskite photoactive material. According to the perovskite photoactive material provided by the invention, the pentylamine iodine, the lead iodide and the iodine methylamine are compounded, so that the carrier mobility and the filling factor of a device can be improved, and the photoelectric conversion efficiency and the repeatability of a battery are further improved.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a perovskite photoactive material, a preparation method thereof, and a solar cell device. Background technique [0002] With the development of the times and the advancement of science and technology, the demand for energy in today's society has risen sharply. The limited output of non-renewable energy and the toxicity of damaging the environment force people to seek clean renewable energy, and the photovoltaic industry is an important choice for renewable energy. Since the 21st century, more and more researchers have begun to pay attention to organic-inorganic hybrid perovskite materials and apply them in solar cells. As a new type of solar cell material, many excellent properties make it a new type of material. "Rising star" in the energy field. [0003] Perovskite solar cell crystal is ABX 3 The structure is generally cubic or octahedral. In the perovskite ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/111H10K85/211H10K85/60H10K85/6572H10K30/10Y02E10/549
Inventor 张渊周惠琼李康李世麟岳通荆亚楠张旭宁康慧
Owner BEIHANG UNIV
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