a kind of in 2 the se 3 Organic solar cell as hole transport layer and preparation method thereof

A hole transport layer and solar cell technology, applied in the field of solar cells, can solve the problems of device stability, limited charge transmission and collection, low light transmittance, etc., and achieve the effect of reducing sensitivity and improving charge transfer efficiency

Active Publication Date: 2020-11-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strong acidity and hydrophilicity of PEDOT:PSS will have a greater impact on the stability of the device.
In addition, the light transmittance of PEDOT:PSS is low, and the insulation of PSS and the strong anisotropy of PEDOT will limit the transport and collection of charges, thus limiting the improvement of the photoelectric conversion efficiency of the battery.

Method used

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  • a kind of in <sub>2</sub> the se <sub>3</sub> Organic solar cell as hole transport layer and preparation method thereof
  • a kind of in <sub>2</sub> the se <sub>3</sub> Organic solar cell as hole transport layer and preparation method thereof
  • a kind of in <sub>2</sub> the se <sub>3</sub> Organic solar cell as hole transport layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this example, In 2 Se 3 The organic solar cell device structure as the hole transport layer is: ITO / In 2 Se 3 / P3HT:PCBM / Ca / Al.

[0038]above with In 2 Se 3 The preparation process of the organic solar cell for the hole transport layer is as follows:

[0039] Step 1. Ultrasonic cleaning with detergent, deionized water, acetone, absolute ethanol, and isopropanol for 20 minutes in sequence; then dry in a vacuum oven at 80°C;

[0040] Step 2, carry out 13 minutes of plasma surface treatment on the surface of the anode substrate (ITO) of described cleaning and drying, this treatment method utilizes the strong oxidizing property that generates ozone under microwave to clean residual organic matter etc. on ITO surface, can make ITO surface oxygen simultaneously Increased vacancies improve the work function of the ITO surface;

[0041] Step 3. Spin-coat In on the ITO surface treated in step 2 2 Se 3 solution; the In 2 Se 3 The solution preparation process is as f...

Embodiment 2

[0050] In this embodiment 2, In 2 Se 3 The organic solar cell device structure as the hole transport layer is: ITO / In 2 Se 3 / P3HT:PCBM / Ca / Al.

[0051] above with In 2 Se 3 The preparation process of the organic solar cell for the hole transport layer is as follows:

[0052] Step 1. Use detergent, deionized water, acetone, absolute ethanol, and isopropanol to ultrasonically clean for 15 minutes in sequence; this time, dry in a vacuum oven at 80°C;

[0053] Step 2, carry out 15 minutes of plasma surface treatment on the surface of the anode substrate (ITO) that has been cleaned and dried. This treatment method utilizes the strong oxidative property of generating ozone under the microwave to clean the residual organic matter on the ITO surface, etc., and simultaneously can make the ITO surface oxygen Increased vacancies improve the work function of the ITO surface;

[0054] Step 3. Spin-coat In on the ITO surface treated in step 2 2 Se 3 solution; the In 2 Se 3 The so...

Embodiment 3

[0060] In this embodiment 3, In 2 Se 3 The organic solar cell device structure as the hole transport layer is: ITO / In 2 Se 3 / P3HT:PCBM / Ca / Al.

[0061] above with In 2 Se 3 The preparation process of the organic solar cell for the hole transport layer is as follows:

[0062] Step 1. Ultrasonic cleaning with detergent, deionized water, acetone, absolute ethanol, and isopropanol for 17.5 minutes in sequence; this time, dry in a vacuum oven at 85°C;

[0063] Step 2, carry out 14 minutes of plasma surface treatment on the surface of the anode substrate (ITO) of described cleaning and drying, this treatment method utilizes the strong oxidizing property that generates ozone under the microwave to clean the residual organic matter etc. on the ITO surface, and simultaneously can make the ITO surface oxygen Increased vacancies improve the work function of the ITO surface;

[0064] Step 3. Spin-coat In on the ITO surface treated in step 2 2 Se 3 solution; the In 2 Se 3 The so...

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Abstract

The invention discloses an organic solar cell taking In2Se3 as a hole transport layer and a preparation method of the organic solar cell. The organic solar cell comprises an anode substrate, a hole transport layer, an active layer, an electron transport layer and a cathode layer, which are sequentially stacked; and the hole transport layer is In2Se3. According to the prepared organic solar cell, In2Se3 with high conductivity and high light transmittance is used. Firstly, In2Se3 has high conductivity, so the charge transmission efficiency of the organic solar cell can be effectively improved, and the sensitivity to the thickness of a thin film is reduced; secondly, the light transmittance of In2Se3 is relatively high, so that the active layer can effectively utilize incident light; and finally, the In2Se3 powder is mixed with isopropyl alcohol by using deionized water to prepare a solution, and the solution is spin-coated to form a film, so that the preparation method is more environment-friendly.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a 2 Se 3 An organic solar cell which is a hole transport layer and a method for preparing the same. Background technique [0002] Organic solar cells have attracted extensive attention due to their wide source of raw materials, easy process, easy physical and chemical modification, various structures of battery devices, low cost, and environmental friendliness. At present, the reported energy conversion efficiency of organic solar cells is close to 15%, which has become a research hotspot of new generation solar cells. [0003] The working principle of organic solar cells is: (1) Light passes through the ITO electrode and shines on the active layer, and the active layer absorbs photons to generate excitons; the excitons diffuse to the donor / acceptor interface; (2) the excitons in the acceptor The holes are transferred to the donor, and the excitons in the donor transfer electrons to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCY02E10/549
Inventor 於黄忠王键鸣
Owner SOUTH CHINA UNIV OF TECH
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