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Cathode modification layer material and preparation method thereof, and solar cell and preparation method thereof

A cathode modification layer, naphthyl technology, applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor interface contact, affecting the collection of charge carriers by electrodes, limiting the improvement of device efficiency, etc., to reduce work function, The effect of excellent electron transport ability

Inactive Publication Date: 2019-08-06
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For inorganic materials, ZnO is the most representative member, but metal oxides such as ZnO usually require high-temperature annealing treatment, which is inconsistent with the typical printing process of flexible plastic substrates used in commerce, and metal oxides have the same The common problem is that there is poor interface contact with the organic layer, which affects the collection of charge carriers by the electrode and limits the further improvement of device efficiency.
For organic materials, although they have the characteristics of solution processing at low temperature, most of these materials are very sensitive to the thickness of the film, the general thickness is 5-20nm, which limits its application in roll-to-roll processing, which is not conducive to large-scale Large-scale processing and production
Therefore, there is still a lack of cathode interface modification layer materials that are not sensitive to thickness and can be processed by low-temperature solvents.

Method used

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  • Cathode modification layer material and preparation method thereof, and solar cell and preparation method thereof
  • Cathode modification layer material and preparation method thereof, and solar cell and preparation method thereof
  • Cathode modification layer material and preparation method thereof, and solar cell and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A kind of cathode modification layer material (ZW-Bu), its molecular structural formula is as follows:

[0039]

[0040] The preparation method of the cathode modification layer material comprises the following steps:

[0041] At room temperature, add water to dissolve 4,6-diaminoresorcinol hydrochloride, then add n-butylamine, stop adding when the color of the solution turns purple, and stir for 2 hours, then filter with a funnel, Then use a mechanical pump to filter for 12 hours.

[0042] Using the cathode modification layer material prepared above to prepare a solar cell, the specific process is as follows:

[0043] (1) Select a number of ITO conductive glass from the same batch with a size of 15mm×15mm, a resistance of 20 ohms, and an ITO thickness of 135nm as substrates, and then use detergent, acetone, isopropanol, and ethanol to ultrasonically clean them for 15 minutes. Clean the ITO surface, then dry it with nitrogen, and then place it in an ultraviolet ozo...

Embodiment 2

[0052] A kind of cathode modification layer material (ZW-Bu), its molecular structural formula is as follows:

[0053]

[0054] The preparation method of the cathode modification layer material comprises the following steps:

[0055] At room temperature, add water to dissolve 4,6-diaminoresorcinol hydrochloride, then add n-butylamine, stop adding when the color of the solution turns purple, and stir for 3 hours, then filter with a funnel, Then use a mechanical pump to filter for 10 hours.

[0056] Using the cathode modification layer material prepared above to prepare a solar cell, the specific process is as follows:

[0057] (1) Select a number of ITO conductive glass from the same batch with a size of 15mm×15mm, a resistance of 20 ohms, and an ITO thickness of 135nm as substrates, and then use detergent, acetone, isopropanol, and ethanol to ultrasonically treat them for 15 minutes. Clean the ITO surface, then dry it with nitrogen, and then treat it under ultraviolet and o...

Embodiment 3

[0066] A kind of cathode modification layer material (ZW-Bu), its molecular structural formula is as follows:

[0067]

[0068] The preparation method of the cathode modification layer material comprises the following steps:

[0069] At room temperature, add water to dissolve 4,6-diaminoresorcinol hydrochloride, then add n-butylamine, stop adding when the color of the solution turns purple, and stir for 2 hours, then filter with a funnel, Then use a mechanical pump to filter for 12 hours.

[0070] Using the cathode modification layer material prepared above to prepare a solar cell, the specific process is as follows:

[0071] (1) Select a number of ITO conductive glass from the same batch with a size of 15mm×15mm, a resistance of 20 ohms, and an ITO thickness of 135nm as substrates, and then use detergent, acetone, isopropanol, and ethanol to ultrasonically treat them for 15 minutes. Clean the ITO surface, then dry it with nitrogen, and then treat it under ultraviolet and...

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Abstract

The invention discloses a cathode modification layer material and a preparation method thereof, and a solar cell and a preparation method thereof. The preparation method of the cathode modification layer material includes the following steps: adding a substance containing amino groups into 4,6-diaminoresorcinol hydrochloride solution; and when the color of the solution becomes purple, stopping adding the substance, stirring the substance for 2-5h and carrying out pumping filtration for 10-12h. The cathode modification layer material prepared in the invention has a conjugate structure and excellent electron transport capability, and can reduce the work function for high-work-function metal or ITO and provide ohmic contact.

Description

technical field [0001] The invention belongs to the technical field of material engineering, and in particular relates to a cathode modification layer material and a preparation method thereof, a solar cell and a preparation method thereof. Background technique [0002] The current development of clean and green energy has always been a research hotspot. Organic solar cells have attracted the attention of many scientific communities due to their advantages such as cheap raw materials, flexible devices, light weight, and solution processing. [0003] For conventional organic solar cells, it is generally composed of an ITO substrate, an anode (cathode) modification layer, a photoactive layer, a cathode (anode) modification layer and a metal electrode, and can be divided into traditional type and Inverted type, the inverted type has better air stability and light absorption ability than the traditional type, so it is more used in commercial production. [0004] In an inverted ...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K85/00H10K30/00H10K30/82Y02E10/549
Inventor 郑永豪林奕玮刘晓东
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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