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Interface-doped double-layer planar heterojunction organic solar cell and preparation method thereof

A solar cell and heterojunction technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of unstable device performance, vague standards for morphology optimization, and limited material selectivity. The efficiency is greatly improved, the light absorption is enhanced, and the process is simple.

Pending Publication Date: 2022-05-27
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, the existing two technologies are constrained by technology and characterization in practical application. It is difficult to grasp the process of interfacial dipole layer regulating the interfacial electric field. There are not many material options. , not very stable in terms of device performance

Method used

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  • Interface-doped double-layer planar heterojunction organic solar cell and preparation method thereof
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  • Interface-doped double-layer planar heterojunction organic solar cell and preparation method thereof

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preparation example Construction

[0067] The preparation method of the interface-doped double-layer planar heterojunction organic solar cell according to the present invention comprises the following steps:

[0068] S1: Weigh 2.25 mg of the donor material J71 and 2.70 mg of the acceptor material Y6, respectively dissolve them in chloroform CF, and configure to obtain a single-component solution. The solution concentration of the donor material J71 in the obtained single-component solution is 5 mg / ml , the solution concentration of the acceptor material Y6 was 6 mg / ml, and the solution was stirred for 8 h at 300 r / min at 50° C. using a hot stage.

[0069] S2: Take the conductive glass substrate 1 and the blank glass substrate for cleaning, and then ultrasonically clean the conductive glass substrate 1 with detergent, deionized water, acetone, absolute ethanol and isopropanol twice, each time for 30 minutes, and then Blow dry with nitrogen, and rinse blank glass substrates in the same way, ready for deionized wa...

Embodiment 1

[0082] The device structure of the interface-doped double-layer planar heterojunction organic solar cell in this embodiment is:

[0083] ITO / ZnO / Y6 / BCF / J71 / MoOx / Al.

[0084] The preparation process of the above-mentioned interface-doped double-layer planar heterojunction organic solar cell is as follows:

[0085] S1: Weigh 2.25 mg of the donor material J71 and 2.70 mg of the acceptor material Y6, respectively dissolve them in chloroform CF, and configure to obtain a single-component solution. The solution concentration of the donor material J71 in the obtained single-component solution is 5 mg / ml , the solution concentration of the acceptor material Y6 was 6 mg / ml, and the solution was stirred for 8 h at 300 r / min at 50° C. using a hot stage.

[0086] S2: Take the conductive glass substrate 1 and the blank glass substrate for cleaning, and then ultrasonically clean the conductive glass substrate 1 with detergent, deionized water, acetone, absolute ethanol and isopropanol twic...

Embodiment 2

[0098] The device structure of the interface-doped double-layer planar heterojunction organic solar cell in this embodiment is:

[0099] ITO / ZnO / Y6 / Borate / J71 / MoOx / Al.

[0100] The preparation process of the above-mentioned doped double-layer planar heterojunction organic solar cell is as follows:

[0101] S1: Weigh 2.25 mg of the donor material J71 and 2.70 mg of the acceptor material Y6, respectively dissolve them in chloroform CF, and configure to obtain a single-component solution. The solution concentration of the donor material J71 in the obtained single-component solution is 5 mg / ml , the solution concentration of the acceptor material Y6 was 6 mg / ml, and the solution was stirred for 8 h at 300 r / min at 50° C. using a hot stage.

[0102] S2: Take the conductive glass substrate 1 and the blank glass substrate for cleaning, and then use detergent, deionized water, acetone, absolute ethanol and isopropyl alcohol to ultrasonically clean the conductive glass substrate 1 twi...

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Abstract

The invention relates to an interface-doped double-layer planar heterojunction organic solar cell and a preparation method thereof, the organic solar cell comprises a conductive glass substrate, an electron transport layer, an active layer, a hole transport layer and a metal electrode which are sequentially arranged from bottom to top, and the active layer is formed by interface doping of a double-layer planar heterojunction Y6 / J71 and BCF or borate. The invention also provides an interface doping method of the organic solar cell and a preparation method of the interface-doped double-layer planar heterojunction organic solar cell, and the preparation method comprises the following steps: spin-coating an acceptor material Y6 solution on the surface of the conductive glass substrate coated with the electron transport layer; spin-coating a donor material J71 solution on the surface of the blank glass substrate coated with the water-soluble PEDOT: PSS; and spin-coating a dopant solution on the surface of the blank glass substrate coated with the donor material J71 solution, and carrying out water transfer printing preparation to obtain the active layer. The photoelectric conversion efficiency of the cell can be greatly improved, the process is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the field of organic solar cells, in particular to an interface-doped double-layer planar heterojunction organic solar cell and a preparation method thereof. Background technique [0002] In order to cope with global warming and the increasing depletion of fossil energy, the development and utilization of renewable energy has been paid more and more attention by the society. Solar energy is considered to be one of the most important ways to use renewable resources to solve the growing global energy demand and solve environmental pollution due to its significant advantages such as no geographical restrictions, no noise, no pollution, and low utilization costs. Driven by technological advances, economies of scale, increasing competition in the supply chain and growing developer experience, the cost of generating electricity from renewable sources has fallen dramatically over the past decade. Between 2010 and 2019, the cost of so...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/30H10K85/113H10K85/60H10K85/615H10K85/626H10K85/657H10K85/40H10K30/00H10K30/20Y02E10/549
Inventor 闫晗赵葳蕤
Owner XI AN JIAOTONG UNIV