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Ink for manufacturing buffer layer and preparation method and application

A cushioning layer and ink technology, applied in applications, inks, household appliances, etc., can solve problems such as poor flexibility of use, inconvenient buffering layer, and strong dependence on large equipment

Inactive Publication Date: 2017-07-28
SHANGHAI MI FANG ELECTRONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the preparation of the buffer layer by the whole solution method is still not convenient enough, and it is highly dependent on large-scale equipment, and the flexibility of use is not good.

Method used

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  • Ink for manufacturing buffer layer and preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033]The second aspect of the present disclosure provides a method for preparing an ink for making a buffer layer of a flexible organic photovoltaic thin film device, comprising: mixing poly(4-vinylphenol), poly(melamine formaldehyde) and nano-zinc oxide with an organic solvent Mix to obtain ink; Wherein, the concentration of poly(4-vinylphenol) in the ink is 5-10mg / mL, the concentration of the poly(melamine formaldehyde) is 2-10mg / mL, the nano-zinc oxide The concentration is 10-70mg / mL; preferably, the concentration of poly(4-vinylphenol) in the ink is 6-7mg / mL, the concentration of the poly(melamine formaldehyde) is 2-8mg / mL, the The concentration of nano zinc oxide is 20-40mg / mL.

[0034] According to the second aspect of the present disclosure, the organic solvent is used to dissolve poly(4-vinylphenol), poly(melamine formaldehyde) and disperse nano zinc oxide, and the organic solvent has suitable boiling point, viscosity and surface tension so that it can be used The ke...

Embodiment 1

[0050] Weigh 70mg poly(4-vinylphenol) and 50mg poly(melamine formaldehyde) and transfer to 5mL reagent bottle A, measure 1mL ethanol and add to reagent bottle A, stir to dissolve. Weigh 35 mg of ZnO (particle size less than 10 nm) and place it in a reagent bottle, measure 1 mL of ethanol and add it to reagent bottle B, and ultrasonically disperse at 40 kHz for 10 min. The solutions in reagent bottle A and reagent bottle B were mixed at a volume ratio of 1:10, ultrasonicated for 5 minutes, and then filtered with a 0.22 μm filter head to obtain ink. The specific composition is shown in Table 1.

[0051] Put the ink into the ink cartridge, and use an inkjet printer to stably eject the ink film. After heating and cross-linking (120°C), a dense cross-linked film can be formed, which can prevent the penetration of the upper ink. The specific performance of the ink is shown in the table. 2. The buffer layer made of this ink can meet the use standard, which can not only block the pene...

Embodiment 2-7

[0053] The preparation steps of Examples 2-7 are basically the same as those of Example 1. The specific composition is shown in Table 1, and the specific properties of the ink are shown in Table 2. The buffer layer made by the ink prepared in Examples 2-7 can reach the use standard, and can block The penetration of the silver ink can in turn transport electrons.

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Abstract

The invention relates to ink for manufacturing a buffer layer of a flexible organic photovoltaic thin film device and a preparation method and application of the ink and a buffer layer prepared from the ink. The ink for manufacturing the buffer layer of the flexible organic photovoltaic thin film device comprises 5-10mg / mL of poly(4-vinyl phenol), 2-10mg / mL of poly(melamine formaldehyde), 10-70mg / mL of nano zinc oxide and an organic solvent. The buffer layer has electron transport characteristics; the solvent of the used ink does not destroy a light-emitting layer of a transition metal compound; a thin film can be self-crosslinked; the sprayed ink does not permeate; and the buffer layer is not dissolved even if an upper layer is heated.

Description

technical field [0001] The present disclosure relates to the technical field of organic photovoltaic devices, and in particular relates to an ink for making a buffer layer of a flexible organic photovoltaic thin film device, its preparation method and application, and the buffer layer prepared with the ink. Background technique [0002] Compared with inorganic solar cells, organic photovoltaic (OPV) devices have the advantages of low cost, small thickness, light weight, simple manufacturing process, and can be made into large-area flexible devices. They have broad development and application prospects and have become One of the most dynamic and vibrant research frontiers in the field of new materials and new energy. The active layer used in OPV devices can be made of two types of semiconductor materials, small molecules or polymers. Small molecule semiconductor devices are mainly prepared by evaporation processes, while polymer material devices are mainly prepared by soluti...

Claims

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Application Information

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IPC IPC(8): C09D11/106C09D11/103C09D11/033C09D11/30C09D11/36H01L51/46H01L51/48
CPCC09D11/033C09D11/103C09D11/106C09D11/30C09D11/36H10K71/12H10K85/10H10K85/111Y02E10/549Y02P70/50
Inventor 李胜夏
Owner SHANGHAI MI FANG ELECTRONICS LTD
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