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Electroactive materials / E I Du Pont De Nemours And Company




Electroactive materials


In Formula I: Ar1 is selected from the group consisting of phenanthrene, triphenylene, triphenylsilyl, triphenylgermyl, dibenzofuran, dibenzothiophene, polyarylphenyl, substituted derivatives thereof, or deuterated analogs thereof; Ar2 and Ar3 are the same or different and are hydrocarbon aryl, heteroaryl, substituted derivatives thereof, or deuterated analogs thereof, with the proviso that Ar2 and Ar3 are not the same as Ar1; and a is 0 or 1. In addition, Ar1, Ar2, and Ar3 have no additional amino substituents. There is disclosed a compound having Formula I



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USPTO Applicaton #: #20170025609
Inventors: Norman Herron, Weiying Gao, Nora Sabina Radu, Ying Wang


The Patent Description & Claims data below is from USPTO Patent Application 20170025609, Electroactive materials.


CLAIM OF BENEFIT OF PRIOR APPLICATION

This application claims the benefit of U.S. Provisional Application No. 62/194,577, filed Jul. 20, 2015, which is incorporated in its entirety herein by reference.

BACKGROUND

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INFORMATION

Field of the Disclosure

The present disclosure relates to novel electroactive compounds. The disclosure further relates to electronic devices having at least one layer comprising such an electroactive compound.

Description of the Related Art

In organic electronic devices, such as organic light emitting diodes (“OLED”), that make up OLED displays, one or more organic electroactive layers are sandwiched between two electrical contact layers. In an OLED at least one organic electroactive layer emits light through the light-transmitting electrical contact layer upon application of a voltage across the electrical contact layers.

It is well known to use organic electroluminescent compounds as the light-emitting component in light-emitting diodes. Simple organic molecules, conjugated polymers, and organometallic complexes have been used. The light-emitting materials may be used alone or may be present in an electroactive host material.

Devices that use electroluminescent materials frequently include one or more charge transport layers, which are positioned between a photoactive (e.g., light-emitting) layer and a contact layer (hole-injecting contact layer). A device can contain two or more contact layers. A hole transport layer can be positioned between the photoactive layer and the hole-injecting contact layer. The hole-injecting contact layer may also be called the anode. An electron transport layer can be positioned between the photoactive layer and the electron-injecting contact layer. The electron-injecting contact layer may also be called the cathode.

There is a continuing need for electroactive materials for use in electronic devices.

SUMMARY

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There is provided a compound having Formula I

wherein: Ar1 is selected from the group consisting of phenanthrene, triphenylene, triphenylsilyl,triphenylgermyl, dibenzofuran, dibenzothiophene, polyarylphenyl, substituted derivatives thereof, and deuterated analogs thereof; Ar2 and Ar3 are the same or different and are selected from the group consisting of hydrocarbon aryl, heteroaryl, substituted derivatives thereof, and deuterated analogs thereof, with the proviso that Ar2 and Ar3 are not the same as Ar1; and a is 0 or 1;

with the proviso that Ar1, Ar2, and Ar3 have no additional amino substituents.

There is also provided an electronic device having at least one layer comprising a compound having Formula I.

The foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as defined in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

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Embodiments are illustrated in the accompanying figures to improve understanding of concepts as presented herein.

FIG. 1 includes an illustration of one example of an organic electronic device including a new compound described herein.




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stats Patent Info
Application #
US 20170025609 A1
Publish Date
01/26/2017
Document #
15209441
File Date
07/13/2016
USPTO Class
Other USPTO Classes
International Class
/
Drawings
5


Hydrocarbon

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20170126|20170025609|electroactive materials|In Formula I: Ar1 is selected from the group consisting of phenanthrene, triphenylene, triphenylsilyl, triphenylgermyl, dibenzofuran, dibenzothiophene, polyarylphenyl, substituted derivatives thereof, or deuterated analogs thereof; Ar2 and Ar3 are the same or different and are hydrocarbon aryl, heteroaryl, substituted derivatives thereof, or deuterated analogs thereof, with the proviso that Ar2 |E-I-Du-Pont-De-Nemours-And-Company
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