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A kind of ink for making active layer, preparation method and application

A technology of active layer and ink, applied in the field of active layer, can solve problems such as inability to realize patterning, large equipment size, and unsuitable for miniaturized operation

Active Publication Date: 2020-09-15
SHANGHAI MI FANG ELECTRONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing active layer is mainly prepared by spin coating in the glove box. The spin coating process will cause waste of more than 98% of the solution and cannot achieve patterning and large-area preparation. Moreover, the equipment required for the spin coating process is large in size and relatively expensive. High, not suitable for miniaturized operation

Method used

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  • A kind of ink for making active layer, preparation method and application

Examples

Experimental program
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Effect test

preparation example Construction

[0027] The second aspect of the present disclosure provides a method for preparing an ink for making an active layer of a flexible organic photovoltaic device, which includes: poly(3-hexylthiophene) and [6,6]-phenyl C 71 Methyl butyrate is mixed with an organic solvent to obtain an ink; wherein, the concentration of poly(3-hexylthiophene) in the ink is 10-30 mg / mL, and the [6,6]-phenyl C 71 The concentration of methyl butyrate is 10-45mg / mL; preferably, the concentration of poly(3-hexylthiophene) in the ink is 15-25mg / mL, and the [6,6]-phenyl C 71 The concentration of methyl butyrate is 25-35mg / mL; more preferably, the concentration of poly(3-hexylthiophene) in the ink is 20mg / mL, and the [6,6]-phenyl C 71 The concentration of methyl butyrate was 30 mg / mL.

[0028] According to the second aspect of the present disclosure, the method for dissolving poly(3-hexylthiophene) and [6,6]-phenyl C 71The organic solvent of methyl butyrate is well known to those skilled in the art, can...

Embodiment 1

[0038] Weigh 20mg of poly(3-hexylthiophene) and 30mg of [6,6]-phenyl C 71 methyl butyrate, and dissolved it in 1mL mixed solvent to obtain ink, the specific composition is shown in Table 1. The mixed solvent is a mixture of chlorobenzene, o-xylene, indane and tetralin with a volume ratio of 1:1:1:1.

[0039] Put the ink into the ink cartridge, and use the inkjet printer to stably eject ink droplets. The specific performance of the ink is shown in Table 2. The active layer made of this ink can meet the use standard.

Embodiment 2-5

[0041] The preparation steps of Example 2-5 are basically the same as those of Example 1. The specific ink composition is shown in Table 1, and the specific performance of the ink is shown in Table 2. The active layer made of the ink prepared in Example 2-5 can meet the use standard.

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Abstract

The present disclosure relates to an ink for making an active layer of a flexible organic photovoltaic device and its preparation method and application. The ink for making an active layer of a flexible organic photovoltaic device includes: poly(3-hexylthiophene), [6,6 ]‑phenyl C 71 Methyl butyrate and an organic solvent; Wherein, the concentration of poly(3-hexylthiophene) in the ink is 10-30mg / mL, and the [6,6]-phenyl C 71 The concentration of methyl butyrate was 10‑45 mg / mL. The present disclosure provides an ink for making an active layer of a flexible organic photovoltaic device by adjusting the composition of the ink, which can realize the printing of the active layer, thereby realizing the free pattern preparation of the active layer without a mask.

Description

technical field [0001] The present disclosure relates to the technical field of organic photovoltaic thin film devices, and in particular, relates to an ink for making an active layer of a flexible organic photovoltaic device, a preparation method and application thereof, and an active layer made using the ink. Background technique [0002] Compared with inorganic solar cells, organic photovoltaic devices (OPV) have broad development and application prospects due to their low cost, small thickness, light weight, simple manufacturing process, and large-area flexible devices. One of the most dynamic and vibrant research frontiers in the field of 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 devices are mainly prepared by evaporation process, and polymer materials are mainly prepared by solution methods, such as spin coating, doctor blade coating or roll-to-roll pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/102C09D11/30H01L51/46H01L51/48
CPCC09D11/102C09D11/30H10K71/12H10K85/113Y02E10/549Y02P70/50
Inventor 李胜夏蓝河
Owner SHANGHAI MI FANG ELECTRONICS LTD
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