CA2344084A1 - Conjugated polycarbazole derivatives in organic light emitting diodes - Google Patents

Conjugated polycarbazole derivatives in organic light emitting diodes Download PDF

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Publication number
CA2344084A1
CA2344084A1 CA002344084A CA2344084A CA2344084A1 CA 2344084 A1 CA2344084 A1 CA 2344084A1 CA 002344084 A CA002344084 A CA 002344084A CA 2344084 A CA2344084 A CA 2344084A CA 2344084 A1 CA2344084 A1 CA 2344084A1
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Prior art keywords
oled
poly
transport layer
carbazole
group
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Granted
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CA002344084A
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French (fr)
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CA2344084C (en
Inventor
Mario Leclerc
Jean-Francois Morin
Isabelle Levesque
Marie D'iorio
Christophe Py
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National Research Council of Canada
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National Research Council of Canada
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Priority to CA2344084A priority Critical patent/CA2344084C/en
Publication of CA2344084A1 publication Critical patent/CA2344084A1/en
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Publication of CA2344084C publication Critical patent/CA2344084C/en
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10Organic polymers or oligomers
    • H10K85/111Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K85/00Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/10Organic polymers or oligomers
    • H10K85/151Copolymers
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/14Carrier transporting layers
    • H10K50/15Hole transporting layers

Abstract

1. An Organic Light Emitting Diode (OLED) includes as active material a conjugated poly(N-alkyl-2,7-carbazole) derivative described by the formula:

Claims (21)

1. An Organic Light Emitting Diode (OLED) including as active material a conjugated poly(N-alkyl-2,7-carbazole) derivative described by the formula:

wherein n is an integer of about 3 to about 100, and R represents a substituant that is a linear or branched alkyl group containing 1 to 22 carbon atoms, or poly(ethyleneoxy), cyano, aryl, amide or benzoyl.
2. An OLED as claimed in claim 1, wherein said poly(N-alkyl-2,7-carbazole) is (poly(N-ethylhexyl)-2,7-carbazole) (PEHC).
3. An OLED as claimed in claim 2, wherein said poly(N-alkyl-2,7-carbazole) is mixed with a second active material.
4. An OLED as claimed in claim 3, wherein said second active material is (N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine) (TPD).
5. An OLED as claimed in claim 1, wherein said poly(N-alkyl-2,7-carbazole) is POC (poly(N-octyl-2,7-carbazole) (POC).
6. An OLED as claimed in claim 1, wherein said derivatives are co-polymers formed with co-monomers selected from the group consisting of: ethylene, acetylene, C6-C22 mononuclear / polynuclear aromatic, C2-C10 mononuclear/polynuclear heterocyclic groups and tertiary arylamines.
7. An OLED as claimed in claim 6, wherein said co-monomers are mononuclear/polynuclear aromatic groups selected from the group consisting of: fluorene, anthracene, phenylene, naphthylene, acenaphthene, phenanthrene, fluoranthene, pyrene, perylene, rubrene, chrysene, tetracene and pentacene.
8. An OLED as claimed in claim 6, wherein said mononuclear/polynuclear heterocyclic internal groups are selected from the group consisting of: 5-member heterocycles; 6-member heterocycles; benzo-fused ring systems such as benzoxazole, benzothiazole, benzimidazole, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, phthalazine, benzothiadiazole, and benzotriazines;
and polynuclear fused condensed ring systems.
9. An OLED as claimed in claim 8, wherein mononuclear / polynuclear heterocyclic internal groups are selected from the group consisting of: furan, thiophene, pyrrole, oxazole, isooxazole, oxadiazoles, thiazole, isothiazole, imidazole, thiadiazole, and pyrazoles.
10. An OLED as claimed in claim 8, wherein mononuclear / polynuclear heterocyclic internal groups are selected from the group consisting of:
pyridine, pyridazine, pyrimidine, pyrazine, triazines, and tetrazene.
11. An OLED as claimed in claim 8, wherein said mononuclear/polynuclear heterocyclic internal groups are selected from the group consisting of:
benzoxazole, benzothiazole, benzimidazole, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, phthalazine, benzothiadiazole, and benzotriazines.
12. An OLED as claimed in claim 8, wherein said mononuclear / polynuclear heterocyclic internal groups are selected from the group consisting of:
phenazine, phenanthridine, acridine, and diphenylene oxide.
13. An OLED as claimed in claim 6, wherein said co-monomers are tertiary arylamine groups selected from the group consisting of: triphenylamine, N,N'-diphenylbenzidine, N,N'-diphenyl-1,4-phenylenediamine, and diphenylnaphthylamine, olefinic, arylamino, aromatic and heterocyclic aromatic groups containing up to 30 carbons, substituted optionally with one or more substituents.
14. An OLED as claimed in claim 13, wherein said substituents are selected from the group consisting of: C1-C20 hydrocarbyl radicals, C1-C20 (thio)alkoxy radicals, C1-C20 (thio)aryloxy radicals, cyano, fluoro, chloro, C1-C20 alkoxycarbonyl, C1-C20 aryoxylcarbonyl, poly(alkyleneoxy) and alkyl(aryl)sulfonyl radicals.
15. An OLED as claimed in claim 14, wherein said substituent is selected from the group consisting of: alkyl, alkoxy, poly(alkyleneoxy), and cyano.
16. An Organic Light Emitting Diode (OLED) comprising:
a hole transport layer;
an electron transport layer; and wherein at least one of said hole transport layer and said electron transport layer comprises either alone or in combination as active material a conjugated poly(N-alkyl-2,7-carbazole) derivative described by the formula:

wherein n is an integer of about 3 to about 100, and R represents a substituant that is a linear or branched alkyl group containing 1 to 22 carbon atoms, or poly(ethyleneoxy), cyano, aryl, amide or benzoyl.
17. An OLED as claimed in claim 16, further comprising a carrier promotion layer adjacent at least one of said electron transport layer and said hole transport layer.
18. An OLED as claimed in claim 17, wherein said carrier promotion layer is LiF.
19. An OLED as claimed in claim 18, wherein said hole transport layer is a blend of PEHC (poly(N-ethylhexyl)-2,7-carbazole) and TPD (N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine) and said electron transport layer is Bu-PBD (2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole).
20. An OLED as claimed in claim 19, wherein said hole transport layer is POC
(poly(N-octyl-2,7-carbazole)) and said electron transport layer is Bu-PBD (2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole).
21. An OLED as claimed in claim 19, wherein said hole transport layer is a blend of P(OCDOF) (poly(N-octyl-2,7-carbazole-alt 9,9'-dioctyl-2,7-fluorene) and TPD (N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine) ans said electron transport layer is Bu-PBD (2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole).
CA2344084A 2001-04-12 2001-04-12 Conjugated polycarbazole derivatives in organic light emitting diodes Expired - Fee Related CA2344084C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2344084A CA2344084C (en) 2001-04-12 2001-04-12 Conjugated polycarbazole derivatives in organic light emitting diodes

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CA2344084A CA2344084C (en) 2001-04-12 2001-04-12 Conjugated polycarbazole derivatives in organic light emitting diodes

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CA2344084C CA2344084C (en) 2011-07-19

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7655809B2 (en) 2004-05-18 2010-02-02 University Of Ottawa Compounds comprising a linear series of five fused carbon rings, and preparation thereof
US7935836B2 (en) 2004-05-18 2011-05-03 Alexander Graham Fallis Compounds comprising a linear series of five fused carbon rings, and preparation thereof
CN115073461A (en) * 2022-07-14 2022-09-20 上海八亿时空先进材料有限公司 Carbazole derivative and application thereof in organic light-emitting element
CN115093414A (en) * 2022-07-14 2022-09-23 上海八亿时空先进材料有限公司 Carbazole derivative and organic light-emitting element containing carbazole derivative
CN115417885A (en) * 2022-09-19 2022-12-02 上海八亿时空先进材料有限公司 Carbazole derivative and application thereof in organic light-emitting element

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7655809B2 (en) 2004-05-18 2010-02-02 University Of Ottawa Compounds comprising a linear series of five fused carbon rings, and preparation thereof
US7935836B2 (en) 2004-05-18 2011-05-03 Alexander Graham Fallis Compounds comprising a linear series of five fused carbon rings, and preparation thereof
CN115073461A (en) * 2022-07-14 2022-09-20 上海八亿时空先进材料有限公司 Carbazole derivative and application thereof in organic light-emitting element
CN115093414A (en) * 2022-07-14 2022-09-23 上海八亿时空先进材料有限公司 Carbazole derivative and organic light-emitting element containing carbazole derivative
CN115073461B (en) * 2022-07-14 2024-01-02 上海八亿时空先进材料有限公司 Carbazole derivative and application thereof in organic light-emitting element
CN115093414B (en) * 2022-07-14 2024-02-13 上海八亿时空先进材料有限公司 Carbazole derivative and organic light-emitting element comprising same
CN115417885A (en) * 2022-09-19 2022-12-02 上海八亿时空先进材料有限公司 Carbazole derivative and application thereof in organic light-emitting element
CN115417885B (en) * 2022-09-19 2023-12-29 上海八亿时空先进材料有限公司 Carbazole derivative and application thereof in organic light-emitting element

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Publication number Publication date
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