Composition for electronic devices, ink for electronic devices, and method for producing electronic device

A technology for electronic devices and compositions, which is applied in the field of compositions for electronic devices, can solve problems such as solvent residues and component performance degradation, and achieve the effects of reduced solvent residues, high liquid stability and component performance

Active Publication Date: 2020-10-16
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fluorine-containing solvents have a very strong dipole interaction due to the high electronegativity of fluorine, and therefore have a disadvantage that the solvent is not volatilized due to the interaction with the solute and tends to remain in the membrane
Therefore, there is a problem that the remaining solvent degrades the performance of the device

Method used

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  • Composition for electronic devices, ink for electronic devices, and method for producing electronic device
  • Composition for electronic devices, ink for electronic devices, and method for producing electronic device
  • Composition for electronic devices, ink for electronic devices, and method for producing electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0489] In Example 1, a thin film was formed from the composition for an electronic device of the present invention, and the remaining amount of the fluorine-containing solvent was evaluated.

[0490]

[0491] A quartz substrate measuring 10 mm in length, 10 mm in width, and 0.7 mm in thickness was ultrasonically cleaned with isopropanol, dried with dry nitrogen, and subjected to UV ozone cleaning for 5 minutes.

[0492] Compound B1 was dissolved at a concentration of 1% by mass in solvent TFPO as component A according to the present invention under a nitrogen atmosphere. The resulting TFPO solution was used as ink by figure 1 and figure 2 By the inkjet printing method shown in , a film was formed on a quartz substrate so as to have a thickness of 50 nm, and dried at 120° C. for 30 minutes in a nitrogen atmosphere to form a single film 1-1 for evaluation.

[0493]

[0494]In the formation of single membrane 1-1 for evaluation, except that compound B1 was replaced by comp...

Embodiment 2

[0505] In Example 2, the driving of a single-charge device (electronic device only: abbreviated as EOD) incorporating a coating film formed using a composition containing the π-conjugated boron compound and a fluorine-containing solvent according to the present invention voltage, were evaluated.

[0506]

[0507] (formation of anode)

[0508] On a glass substrate with a length of 50 mm, a width of 50 mm, and a thickness of 0.7 mm, ITO (indium tin oxide) was formed into a film with a thickness of 120 nm and patterned to form an anode composed of an ITO transparent electrode. Then, ultrasonic cleaning was performed with isopropanol, dried with dry nitrogen, and UV ozone cleaning was performed for 5 minutes.

[0509] (Formation of hole blocking layer)

[0510] Next, the substrate on which the anode was formed was fixed to a substrate holder of a commercially available vacuum deposition apparatus.

[0511] An optimum amount of calcium was filled in the resistance heating boat...

Embodiment 3

[0525] In Example 3, the stability of the electronic device composition containing the π-conjugated boron compound and the fluorine-containing solvent and the component C according to the present invention was evaluated.

[0526]

[0527] After heating at 85 degreeC in nitrogen atmosphere for 15 minutes, it returned to room temperature, and the following composition 3-1 for evaluation was produced by this.

[0528] (composition 3-1 for evaluation)

[0529] Compound B610 parts by mass

[0530] HFBO2000 parts by mass

[0531]

[0532] In the composition 3-1 for evaluation, except having replaced compound B6 with compound B7, and replaced HFBO with TFPO, the composition 3-2 for evaluation was produced similarly.

[0533] Furthermore, in preparation of evaluation composition 3-2, preparation of evaluation compositions 3-3 to 3-25 was carried out similarly except having replaced compound B7 and TFPO with the compound or solvent described in Table II. In addition, when there ...

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Abstract

The present invention addresses the problem of providing: a composition for electronic devices in which when a film is formed therefrom, the amount of residual solvents including fluorine-containing solvents within the film is reduced, the effects of residual solvents on a device are minimized, and it is thus possible to achieve high element performance; an ink for electronic devices that is suitable for wet processes and that makes it possible to achieve high liquid stability and element performance as a result of containing the composition for electronic devices; and a method for producing an electronic device. This composition for electronic devices contains a component A and a component B and is characterized in that the component A is a fluorine-containing solvent and the component Bis a compound having a structure represented by general formula (1).

Description

technical field [0001] The present invention relates to a composition for an electronic device, an ink for an electronic device, and a method for producing an electronic device. More specifically, it relates to reducing the residual amount of a solvent including a fluorine-containing solvent in a film during film formation, and suppressing the effect of the residual solvent on the device. Composition for electronic device capable of exhibiting high device performance due to influence; ink for electronic device and production of electronic device capable of exhibiting wet process compatibility and exhibiting high liquid stability and device performance by containing the composition for electronic device method. Background technique [0002] When producing electronic devices such as organic electroluminescence elements (hereinafter referred to as organic EL elements), organic thin-film solar cells, and organic transistors, two methods of production, dry and wet, are used. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50B41J2/01H05B33/10C09D11/36C09D11/38C09K11/06
CPCC09D11/36C09D11/38C09K11/06H05B33/10H10K71/135H10K71/15H10K85/615H10K85/655H10K85/631H10K85/654H10K85/6574H10K85/322H10K50/165H10K50/18H10K50/16C09D7/20
Inventor 木村彰宏冈庭实友纪伊藤宽人
Owner KONICA MINOLTA INC
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