Green luminescent materials
AssigneeE. I. Du Pont de Nemours and Company
InventorsNorman Herron, Weiying Gao
Life of this patent
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Abstract
There is provided a compound having Formula I In the formula: Ar can be phenyl, biphenyl, or terphenyl, and can optionally have one or more substituents which can be D, alkyl, silyl, deuterated alkyl, or deuterated silyl; R1 can be alkyl, silyl, aryl, heteroaryl, deuterated alkyl, deuterated silyl, deuterated aryl, or deuterated heteroaryl; R2-R11 are the same or different and can be H, D, alkyl, silyl, deuterated alkyl, or deuterated silyl.
Claims14
An organic electronic device comprising a first electrical contact, a second electrical contact, and a photoactive layer therebetween, wherein the photoactive layer comprises a luminescent compound having red, orange, or yellow emission color, a host material, and a compound having Formula I
- wherein:
- Ar is selected from the group consisting of phenyl, biphenyl, and terphenyl, wherein Ar optionally has one or more substituents selected from the group consisting of D, alkyl, silyl, deuterated alkyl, and deuterated silyl;
- R1 is selected from the group consisting of H, D, alkyl, silyl, aryl, heteroaryl, deuterated alkyl, deuterated silyl, deuterated aryl, and deuterated heteroaryl;
- and
- R2-R11 are the same or different and are selected from the group consisting of H, D, alkyl, silyl, deuterated alkyl, and deuterated silyl;
- wherein the compound having Formula I is present as a hole-trap material which possesses a highest occupied molecular orbital (HOMO) lying closer in energy to the vacuum level than the HOMO of any other material present in the photoactive layer.
An organic electronic device comprising a first electrical contact, a second electrical contact, and a photoactive layer therebetween, wherein the photoactive layer comprises a luminescent compound having red, orange, or yellow emission color, a host material, and a compound having Formula I
- wherein:
- Ar is selected from the group consisting of phenyl, biphenyl, and terphenyl, wherein Ar optionally has one or more substituents selected from the group consisting of D, alkyl, silyl, deuterated alkyl, and deuterated silyl;
- R1 is selected from the group consisting of H, D, alkyl, silyl, aryl, heteroaryl, deuterated alkyl, deuterated silyl, deuterated aryl, and deuterated heteroaryl;
- and
- R2-R11 are the same or different and are selected from the group consisting of H, D, alkyl, silyl, deuterated alkyl, and deuterated silyl;
- wherein the compound having Formula I is present as an electron-trap material which possesses a lowest unoccupied molecular orbital (LUMO) lying further in energy from the vacuum level than the LUMO of any other material present in the photoactive layer.
Dependencies are inferred from the claim text.