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Organic solar cell with active layer doped with gese two-dimensional nanomaterials and preparation method thereof

A technology of two-dimensional nanomaterials and solar cells, applied in the field of solar cells, can solve the problems of not effectively increasing the light utilization rate of solar cells, destroying the interaction between organic materials in the active layer, and reducing the charge transfer rate, etc., to achieve good optics Absorptive capacity, increased charge transport efficiency, and enhanced collection effects

Active Publication Date: 2022-07-29
SOUTH CHINA UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Wang.D.H et al. used the doping of gold and silver nanoparticles to improve the charge transport efficiency and improve the performance of solar cell devices; as reported by Chengwen Huang et al., the two-dimensional Bi 2 o 2 Doping Se materials into the PBDB-T / ITIC active layer improves the transfer and collection of charges, thereby improving the energy conversion efficiency of solar cells; several doping technologies can improve charge transfer efficiency, thereby improving device performance, but Excessive doping will lead to excessive aggregation of active layer materials, destroy the interaction between organic materials in the active layer, and reduce the charge transfer rate. At the same time, the added metal nanoparticles do not have the ability to increase the light absorption wavelength range of the active layer. Can not effectively increase the utilization rate of solar cells to light

Method used

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  • Organic solar cell with active layer doped with gese two-dimensional nanomaterials and preparation method thereof
  • Organic solar cell with active layer doped with gese two-dimensional nanomaterials and preparation method thereof
  • Organic solar cell with active layer doped with gese two-dimensional nanomaterials and preparation method thereof

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Effect test

Embodiment 1

[0043] The organic solar cell device structure of the active layer doped with GeSe two-dimensional nanomaterials in this embodiment is: ITO / ZnO / GeSe&P3HT:PCBM / MoO3 / Ag.

[0044] The preparation process of the organic solar cell whose active layer is doped with GeSe two-dimensional nanomaterials is as follows:

[0045] Step 1. Use detergent, deionized water, acetone, isopropanol, and absolute ethanol to ultrasonically clean for 15 minutes in turn; then dry in a vacuum drying box at 80°C for 12 hours;

[0046] In step 2, the surface of the cathode substrate (ITO) after cleaning and drying is subjected to oxygen plasma surface treatment for 14 minutes, and the strong oxidizing property of generating ozone from the microwave is used to clean the residual organic solvent on the surface of the ITO, and simultaneously make the oxygen vacancies on the surface of the ITO. Increase, improve the work function of the ITO surface;

[0047] Step 3: Spin coating an electron transport layer ...

Embodiment 2

[0056] The organic solar cell device structure of the active layer doped with GeSe two-dimensional nanomaterials in this embodiment is: ITO / ZnO / GeSe&P3HT:PCBM / MoO 3 / Ag.

[0057] The preparation process of the organic solar cell whose active layer is doped with GeSe two-dimensional nanomaterials is as follows:

[0058] Step 1. Use detergent, deionized water, acetone, isopropanol, and absolute ethanol to ultrasonically clean for 15 minutes in turn; then dry in a vacuum drying box at 80°C for 12 hours;

[0059] In step 2, the surface of the cathode substrate (ITO) after cleaning and drying is subjected to oxygen plasma surface treatment for 14 minutes, and the strong oxidizing property of generating ozone from the microwave is used to clean the residual organic solvent on the surface of the ITO, and simultaneously make the oxygen vacancies on the surface of the ITO. Increase, improve the work function of the ITO surface;

[0060] Step 3: Spin coating an electron transport laye...

Embodiment 3

[0066] The organic solar cell device structure of the active layer doped with GeSe two-dimensional nanomaterials in this embodiment is: ITO / ZnO / GeSe&P3HT:PCBM / MoO 3 / Ag.

[0067] The preparation process of the organic solar cell whose active layer is doped with GeSe two-dimensional nanomaterials is as follows:

[0068] Step 1. Use detergent, deionized water, acetone, isopropanol, and absolute ethanol to ultrasonically clean for 15 minutes in turn; then dry in a vacuum drying box at 80°C for 12 hours;

[0069] In step 2, the surface of the cathode substrate (ITO) after cleaning and drying is subjected to oxygen plasma surface treatment for 14 minutes, and the strong oxidizing property of generating ozone from the microwave is used to clean the residual organic solvent on the surface of the ITO, and simultaneously make the oxygen vacancies on the surface of the ITO. Increase, improve the work function of the ITO surface;

[0070] Step 3: Spin coating an electron transport laye...

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Abstract

The invention discloses an organic solar cell with an active layer doped with GeSe two-dimensional nanomaterials and a preparation method thereof; the organic solar cell is composed of a cathode base, an electron transport layer, an active layer, a hole transport layer and an anode layer stacked in sequence ; The active layer is a P3HT:PCBM film doped with GeSe two-dimensional nanomaterials. In the organic solar cell of the present invention, the doped GeSe two-dimensional nanomaterial has high carrier mobility (10 2 cm 2 V ‑1 S ‑1 ), suitable band gap (1.2eV‑1.8eV), and high absorption coefficient (>10 4 cm ‑1 ) to improve the utilization rate and conductivity of the active layer to light; in the present invention, GeSe powder and absolute ethanol are used to prepare a solution and then mechanically peeled off, and the obtained solution containing GeSe two-dimensional nanosheets is mixed with the active layer solution and then spin-coated Film formation, more environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of solar cells, in particular to an organic solar cell whose active layer is doped with GeSe two-dimensional nanomaterials and a preparation method thereof. Background technique [0002] Organic polymer solar cells (PSCs), as a new technology to convert solar energy into electricity, have the characteristics of simple fabrication, low price and environmental friendliness, and thus have received extensive attention in the field of solar energy. So far, the solar cell efficiency (PCE) of single-layer active layer has reached 17%, while the efficiency of tandem solar cells has exceeded 18%. However, the poor charge transport efficiency and short-lived excitons of organics in polymer solar cells greatly limit the efficiency improvement of polymer solar cells, in which the separated electrons and holes are caused by recombination or charge trapping during the charge transfer process. At the same time, the active...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48B82Y10/00B82Y40/00B82Y30/00
CPCB82Y10/00B82Y40/00B82Y30/00H10K71/12H10K71/164H10K71/40H10K30/20H10K2102/00Y02E10/549
Inventor 於黄忠谭靖宇孙亚鹏王键鸣黄承稳侯春利张健开黄金珍杨宋
Owner SOUTH CHINA UNIV OF TECH
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