Aluminum acetylacetone cathode modified polymer solar cell and preparation method thereof

A technology of aluminum acetylacetonate and solar cells, applied in the field of polymer solar cells, can solve the problems of difficult preparation of ZnO nanoparticles, low adhesion, and high cost, and achieve the advantages of low cost, improved adhesion, and reduced contact resistance. Effect

Inactive Publication Date: 2018-08-03
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ZnO nanoparticles are difficult to prepare, time-consuming, difficult to store, high in cost, and have low adhesion to ITO, which is not suitable for making large-area flexible and foldable polymer solar cell devices.

Method used

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  • Aluminum acetylacetone cathode modified polymer solar cell and preparation method thereof
  • Aluminum acetylacetone cathode modified polymer solar cell and preparation method thereof
  • Aluminum acetylacetone cathode modified polymer solar cell and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Polymer solar cell ITO / P3HT:PC without cathode modification layer 61 BM / MoO 3 / Ag preparation, concrete steps are as follows:

[0037] (1) The transparent conductive glass substrate sputtered with indium tin oxide (ITO glass substrate) was ultrasonically cleaned with acetone, isopropanol, deionized water and isopropanol for 15 minutes respectively, and the washed ITO glass substrate was placed on the Dried in an oven and moved into a nitrogen glove box with water and oxygen content less than 10 ppm for subsequent use;

[0038] (2) P3HT:PC with a mass ratio of 1:0.8 61 BM was formulated into a mixed solution with a total concentration of 36 mg / mL (P3HT:PC 61 BM solution), the solvent is o-dichlorobenzene; the P3HT:PC 61 The BM solution was spin-coated on the ITO glass at a speed of 800 rpm and 45 seconds as the active layer, and then placed in the glove box for 3.5 hours, annealed at 150°C for 15 minutes; finally placed in a vacuum thermal evaporation coating machine...

Embodiment 2

[0041] Aluminum acetylacetonate cathode modified polymer solar cells ITO / aluminum acetylacetonate / P3HT:PC 61 BM / MoO 3 / Ag preparation, concrete steps are as follows:

[0042] (1) Take 100 mg of aluminum acetylacetonate with an electronic scale, add the solvent N,N-dimethylformamide to it, and prepare a solution with a concentration of 10 wt%, then add 100 μL of ethanolamine to it, fully shake to dissolve, Obtain aluminum acetylacetonate solution, stand-by;

[0043] (2) The transparent conductive glass substrate sputtered with indium tin oxide (ITO glass substrate) was ultrasonically cleaned with acetone, isopropanol, deionized water and isopropanol for 15 minutes respectively, and the washed ITO glass substrate was placed on the Dry in an oven and transfer to a Braun nitrogen glove box with water and oxygen content less than 10 ppm for later use;

[0044] (3) The prepared aluminum acetylacetonate solution was spin-coated on the ITO glass substrate at a speed of 2000 rpm for...

Embodiment 3

[0048] Polymer solar cell ITO / PTB7:PC without cathode modification layer 71 BM / MoO 3 / Ag preparation, concrete steps are as follows:

[0049] (1) The transparent conductive glass substrate sputtered with indium tin oxide (ITO glass substrate) was ultrasonically cleaned with acetone, isopropanol, deionized water and isopropanol for 15 minutes respectively, and the washed ITO glass substrate was placed on the Dry in an oven and transfer to a Braun nitrogen glove box with water and oxygen content less than 10 ppm for later use;

[0050] (2) PTB7:PC with a mass ratio of 1:1.5 71 BM was prepared into a mixed solution with a total concentration of 20 mg / mL, and the solvent was chlorobenzene, and then spin-coated on the ITO glass substrate at 1000 rpm and 60 seconds as the active layer, and then placed in the overcoating chamber in the glove box Continue vacuuming for 3 hours, anneal at 150°C for 15 minutes; finally put MoO into a vacuum thermal evaporation coating machine to eva...

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Abstract

The invention discloses an aluminum acetylacetone cathode modified polymer solar cell and a preparation method thereof. In a light incident direction, the cell structure sequentially comprises an ITOglass substrate, a cathode modification layer, an active layer, an anode modification layer and a metal electrode. The cathode modification layer is an aluminum acetylacetone film. According to the invention, a prepared aluminum acetylacetone solution is processed on the ITO glass substrate through a solution processing method to form a film; annealing heat treatment is carried out to acquire thecathode modification layer; and the active layer, the anode modification layer and the metal electrode are sequentially prepared to acquire the aluminum acetylacetone cathode modified polymer solar cell. The preparation method has the advantages of simple process, low cost and good repeatability, and is beneficial to large-scale industrial production. According to the invention, aluminum acetylacetone is introduced as a cathode modification layer material in the polymer solar battery; efficient electron collection is realized; and the aluminum acetylacetone cathode modified polymer solar cellwith high photoelectric conversion efficiency is acquired.

Description

technical field [0001] The invention belongs to the technical field of polymer solar cells, and in particular relates to a polymer solar cell modified with an aluminum acetylacetonate cathode and a preparation method thereof. Background technique [0002] With the depletion of conventional energy and the aggravation of environmental pollution, the demand for renewable energy has become more urgent. As a clean and renewable energy source, solar cells have been developing rapidly around the world. Polymer solar cells have been widely concerned and studied by researchers because of their advantages such as low cost, light weight, flexibility, and large-area devices that can be prepared by solution printing, and have become one of the most promising renewable energy sources today. [0003] In recent years, through the design and synthesis of new polymer donor materials and acceptor materials, as well as the development of suitable interface modification functional materials and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/42H01L51/48
CPCH10K30/00H10K30/81Y02E10/549Y02P70/50
Inventor 李琦章勇
Owner SOUTH CHINA NORMAL UNIVERSITY
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