Perovskite solar cell taking graphdiyne-induced crosslinking fullerene in-plane orientation as electron transmission layer and preparation method of perovskite solar cell

An electron transport layer and solar cell technology, applied in the field of solar cells, can solve problems such as harsh preparation conditions, achieve the effects of simplifying the preparation process, avoiding degradation reactions, and improving electron mobility

Active Publication Date: 2018-02-23
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved: In view of the harsh preparation conditions of the existing metal oxides that require high temperature treatment, as well as the shortcomings of film formati...

Method used

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  • Perovskite solar cell taking graphdiyne-induced crosslinking fullerene in-plane orientation as electron transmission layer and preparation method of perovskite solar cell
  • Perovskite solar cell taking graphdiyne-induced crosslinking fullerene in-plane orientation as electron transmission layer and preparation method of perovskite solar cell

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Embodiment 1

[0030] A two-dimensional graphyne-induced cross-linked fullerene in-plane orientation as a perovskite solar cell with a highly conductive electron transport layer, the preparation steps of the preparation method are as follows:

[0031] (1) Dissolve 180mg of methylammonium iodide and 553mg of lead iodide in a mixed solvent of γ-butyrolactone and dimethyl sulfoxide (volume ratio 7:3), and stir for 5 hours to make 40wt% calcium Titanium solution;

[0032] (2) Dissolve and disperse 1 mg of the highly conductive two-dimensional material graphyne and 20 mg of the compound PCBSD in 1 mL of chlorobenzene, spin-coat it on the FTO glass substrate at a speed of 4000 rpm for 40 s, and then anneal at 140 ° C to form a thickness of 45 nm. The cured cathodic modification layer;

[0033] (3) Spin-coat the perovskite γ-butyrolactone and dimethyl sulfoxide solution obtained in (1) on the cathode modification layer obtained in (2) at a speed of 4000 rpm for 40 seconds, and then Lower annealin...

Embodiment 2

[0037] A two-dimensional graphyne-induced cross-linked fullerene in-plane orientation as a perovskite solar cell with a highly conductive electron transport layer, the preparation steps of the preparation method are as follows:

[0038] (1) Dissolve 180mg of methylammonium iodide and 553mg of lead iodide in a mixed solvent of γ-butyrolactone and dimethyl sulfoxide (volume ratio 7:3), and stir for 5 hours to make 40wt% calcium Titanium solution;

[0039] (2) The titanium dioxide precursor solution was spin-coated on the FTO glass substrate at a rotation speed of 4000rpm for 40s, and then annealed at 500°C to form a cured cathode modification layer with a thickness of 45nm;

[0040] (3) Dissolve 1 mg of highly conductive two-dimensional material graphyne and 20 mg of compound PCBSD in 1 mL of chlorobenzene, spin-coat it on titanium dioxide at a speed of 4000 rpm for 40 s, and then anneal at 140 ° C to form a solidified layer with a thickness of 20 nm. The cathode modification l...

Embodiment 3

[0045] A two-dimensional graphyne-induced cross-linked fullerene in-plane orientation as a perovskite solar cell with a highly conductive electron transport layer, the preparation steps of the preparation method are as follows:

[0046] (1) Dissolve 180mg of methylammonium iodide and 553mg of lead iodide in a mixed solvent of γ-butyrolactone and dimethyl sulfoxide (volume ratio 7:3), and stir for 5 hours to make 40wt% calcium Titanium solution;

[0047] (2) Dissolve and disperse 1 mg of the highly conductive two-dimensional material graphyne and 20 mg of the compound PCBSD in 1 mL of chlorobenzene, spin-coat it on a flexible ITO substrate at a speed of 4000 rpm for 40 s, and then anneal at 80 ° C to form a thickness of 45 nm. The cured cathodic modification layer;

[0048] (3) Spin-coat the perovskite γ-butyrolactone and dimethyl sulfoxide solution obtained in (1) on the cathode modification layer obtained in (2) at a speed of 4000 rpm for 40 seconds, and then Lower annealin...

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Abstract

The invention provides a perovskite solar cell taking graphdiyne-induced crosslinking fullerene in-plane orientation as an electron transmission layer and a preparation method of the perovskite solarcell. The preparation comprises the following steps of preparing a perovskite solution from methyl iodide and lead iodide in a mixed solvent of Gamma-butyrolactone and dimethyl sulfoxide; dispersing atwo-dimensional material graphdiyne and a compound PCBSD in chlorobenzene to prepare a negative electrode transmission layer; processing the perovskite solution on the negative electrode transmissionlayer, and processing 2, 2', 7, 7'-quadri[N, N-bi(4-methoxyphenyl)amino]-9, 9'-spirobifluorene on a junction light-sensitive layer to obtain a hole transmission layer; and depositing a positive electrode, thereby obtaining the high-efficiency and stable perovskite solar cell. The perovskite solar cell obtained by the invention is high in energy conversion efficiency, simple in process and low incost and has good photovoltaic characteristic.

Description

technical field [0001] The invention belongs to the field of solar cells, and in particular relates to a perovskite solar cell with in-plane orientation of graphyne-induced cross-linked fullerene as an electron transport layer and a preparation method thereof. Background technique [0002] Perovskite solar cells are favored by many researchers because of their high energy conversion efficiency. Among them, the device structure with higher efficiency space titanium dioxide and other metal oxides as the electronic modification layer has received extensive attention and is widely used. However, in perovskite batteries, the electronic modification layer requires a higher temperature of 500°C to prepare a thin film with good performance, which limits the cost of device preparation to a large extent, and the cost of device preparation increased by complicated and harsh preparation conditions restricts perovskite. The process of mine solar cell industrialization. [0003] In addit...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/10H10K30/65H10K30/00Y02E10/549Y02P70/50
Inventor 廖良生王照奎李萌
Owner SUZHOU UNIV
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