WO2015140110A1 - Organische optoelektronische vorrichtung - Google Patents
Organische optoelektronische vorrichtung Download PDFInfo
- Publication number
- WO2015140110A1 WO2015140110A1 PCT/EP2015/055443 EP2015055443W WO2015140110A1 WO 2015140110 A1 WO2015140110 A1 WO 2015140110A1 EP 2015055443 W EP2015055443 W EP 2015055443W WO 2015140110 A1 WO2015140110 A1 WO 2015140110A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiation
- emitter
- electronically excited
- dual
- excited state
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
- H10K50/13—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light comprising stacked EL layers within one EL unit
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
- H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
- H10K50/13—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light comprising stacked EL layers within one EL unit
- H10K50/131—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light comprising stacked EL layers within one EL unit with spacer layers between the electroluminescent layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/19—Tandem OLEDs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/32—Stacked devices having two or more layers, each emitting at different wavelengths
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/611—Charge transfer complexes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/622—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing four rings, e.g. pyrene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/654—Aromatic compounds comprising a hetero atom comprising only nitrogen as heteroatom
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/656—Aromatic compounds comprising a hetero atom comprising two or more different heteroatoms per ring
- H10K85/6565—Oxadiazole compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1007—Non-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1044—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms
- C09K2211/1048—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms with oxygen
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/16—Electron transporting layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/17—Carrier injection layers
- H10K50/171—Electron injection layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/81—Anodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
Definitions
- Organic Optoelectronic Device The present invention relates to an organic
- OLEDs which have a high color rendering index (CRI).
- Color rendering typically the radiations from different emitters, each emitting light in another part of the visible spectral range, are combined together.
- the color rendering index is a measure that describes the quality of the color rendering of a light source. The larger the CRI value (maximum 100), the higher the similarity of one
- Reference radiator It may, however, to extinguish a higher energy radiation by lower energy
- Emitters come, e.g. by reabsorption or by
- the individual emitters are arranged in different layers, wherein the respective layers can be separated from each other by further layers located therebetween.
- the use of several different layers has the disadvantage that at the interface between two layers injection barriers for charge carriers can arise, which has an increased operating voltage result.
- the object of at least one embodiment of the invention is to provide an organic optoelectronic device with an improved CRI value. This object is achieved by an organic optoelectronic device according to claim 1. Advantageous developments of the organic optoelectronic device are the subject of further dependent claims.
- the invention according to the main claim 1 is an organic optoelectronic device, comprising:
- Electrode can inject charge carriers of different polarity in the radiation-emitting region, wherein
- the radiation emitting area has a dual
- the further emitter is transferred by the charge carriers in an electronically excited state and emitted at the transition to the electronic ground state from this electronically excited state radiation and - wherein the dual emitter is a first electronically excited and one of the first electronically excited state by intramolecular
- the radiation-emitting region is arranged between the first and the second electrode. Between the electrodes and the radiation-emitting region, further, non-emitting layers may be present.
- the two electrodes inject charge carriers of different polarity, ie electrons and holes, into the radiation-emitting region in which a dual emitter and a further emitter are arranged.
- the substrate may be, for example, one or more materials in the form of a layer, a plate, a film or a laminate selected from glass, quartz, plastic, metal and silicon wafers.
- the substrate particularly preferably comprises or consists of glass, for example in the form of a glass layer, glass film or glass plate.
- the two electrodes between which the radiation-emitting area and the other organic compound
- both be formed translucent, so that the emitted light in the organic, optoelectronic device, which is generated in the radiation-emitting region between the two electrodes in the direction of the substrate but also in the direction away from the substrate direction can be radiated.
- all layers of the organic, optoelectronic radiation-emitting component can be designed to be translucent, so that the component forms a translucent and, in particular, a transparent OLED.
- Electrode generated radiation can be emitted only in one direction through the translucent electrode. If the electrode arranged on the substrate is translucent and the substrate is also translucent, this is referred to as a "button emitter.” If the electrode remote from the substrate is designed to be translucent, this is referred to as a "top emitter”.
- the first and second electrodes can be independent
- each other comprise a material selected from a group consisting of metals, electrically conductive polymers, transition metal oxides and conductive transparent oxides
- the electrodes may also be layer stacks of several layers of the same or different metals or the same or
- Suitable metals are, for example, Ag, Pt, Au, Mg, Al, Ba, In, Ca, Sm or Li, as well as compounds, combinations or alloys thereof.
- Transparent conductive oxides are transparent, conductive
- metal oxides such as zinc oxide, tin oxide, cadmium oxide, titanium dioxide, indium oxide or indium tin oxide (ITO).
- ITO indium tin oxide
- binary metal oxygen compounds such as
- ZnO, Sn0 2 or ⁇ 2 ⁇ 3 also include ternary
- TCOs do not necessarily correspond to a stoichiometric composition and may also be p- or n-doped.
- the further emitter emits in the transition from the electronically excited state to the electronic ground state, radiation.
- the dual emitter has a first electronically excited state and one from the first electronically excited state by intramolecular proton transfer or intramolecular
- emitter further emits the organic optoelectronic device radiation, which is formed by superposition of the radiation emitted by the two emitters radiation.
- the combination of the dual emitter with the further emitter advantageously increases the CRI of the total radiation from both emitters which is emitted by the organic optoelectronic device.
- the further emitter can not undergo intramolecular charge transfer or
- Invention additionally also have an emission starting from the first electronically excited state.
- the dual emitter When the intramolecular proton transfer or the intramolecular charge transfer during the transition from the first electronically excited state into the second electronically excited state takes place faster than the radiation-emitting decay, starting from the first electronically excited state in the first electronic ground state, the dual emitter has an emission mainly from the second electronically excited state that is more than 90%, more than 95% or more than 97%.
- dual emitters are used in which the transition from the first electronically excited state to the second electronically excited state takes place within a time period of -S 10 ps, preferably ⁇ 1 ps, which leads to an emission of more than 90%. , more preferably more than 95%, most preferably more than 97% of the second excited electronic
- the wavelength of the light emitted from these two electronically excited states can be shifted by several 10 nm from each other and can have a different spectral shape.
- the emitted radiation from the second electronically excited state is lower energy than the emitted radiation from the first electronically excited state (see, for example, FIG. 1).
- the further and the dual emitter can be different from each other because of their different optical properties
- the emission spectrum of the further emitter also has emission bands which correspond to the emission of radiation from the electronic excited state while relaxing in the electronic ground state. Also shows the absorption spectrum of the dual emitter
- Two emission bands are due to the radiating electronic transitions between the first electronically excited state and the second electronically excited state into the respective first and second electronic ground states. It is possible that the dual emitter due to a rapid intramolecular charge transfer or intramolecular
- State to the second excited electronic state also predominantly, so for example more than 90 ⁇ 6 has only one emission band. This emission band is then due to a bright transition between the second electronically excited state and the second ground state.
- the matrix materials can primarily
- intramolecular charge transfer can be achieved, generally with an increasingly polar matrix material, an emission from the second excited state will increase over emission from the first excited state.
- ESIPT molecules Excited S_tate Intramolecular Proton Transfer
- the ESIPT molecules are present in the first electronically excited state in the enol form, while in the second electronically excited state they are present in the keto form.
- the second electronic ground state After the transition from the second electronically excited state in the associated ground state, which is referred to as the second electronic ground state, a rapid proton back transfer during the transition from the second electronic ground state into the first electronic ground state can take place. Therefore, the second electronic ground state is hardly populated.
- ICT molecules intramolecular charge transfer molecules
- ICT molecules intramolecular charge transfer molecules
- These molecules have an electron donor and acceptor group, wherein in the first electronically excited state they are initially present only in a local state and the locally excited state can be converted by intra ⁇ molecular charge transfer into a second electronically excited state. After the transition from the second electronically excited state to the second electronic state fast charge ⁇ transfer is carried out from the second electronic
- the radiation-emitting region has a phosphorescent emitter as a further emitter and in others
- Embodiments of the invention on a fluorescent dual emitter.
- the fluorescent dual emitter can only use the generated singlet excitons for emission.
- the specific one however, it can be combined with an energetically suitable phosphorescent emitter as a further emitter
- all excitons produced in the radiation-emitting region are used for emission.
- Such dual emitters may emit radiation from the second electronically excited state, but absorb almost no radiation that makes a transition from the second electronic ground state to the second
- the dual Emitter and, for example, a phosphorescent further emitter are introduced in a single radiation-emitting layer of the radiation-emitting region, since a deletion of the emission of the further phosphorescent emitter by the second electronic
- the radiation-emitting region comprises ESIPT molecules as dual emitters exhibiting photoinduced enol-keto tautomerism.
- ESIPT molecules may have the following general tautomers
- L is either nitrogen, oxygen or sulfur and R 1 to R 4 are hydrogen, alkyl, alkenyl groups, long-chain alkyl, alkoxy, long-chain alkoxy, cycloalkyl, haloalkyl, aryl, arylenes, haloaryl, heteroaryl, heteroarylenes,
- Heterocycloalkylenes heterocycloalkyl, haloheteroaryl, alkenyl, haloalkenyl, alkynyl, haloalkynyl, ketoaryl, haloketoaryl, ketoheteroaryl, ketoalkyl, halo-ketoalkyl, ketoalkenyl, halo-ketoalkenyl, or may be part of a cyclic, aromatic or heteroaromatic system.
- dual emitters such as
- branched C1-C8-alkyls, long-chain alkyls linear and branched C5-C20 alkyls
- Alkenyl C 2 -C 6 -alkenyl
- cycloalkyl C 3 -C 8 -cycloalkyl
- Alkoxy Cl-C6-alkoxy, long-chain alkoxy: linear and
- branched C5-C20 alkoxy alkylenes selected from the group consisting of: methylenes; 1, 1 -ethylene; 1,2-ethylene; 1, 1-propylidenes; 1,2-propylene; 1,3-propylene; 2, 2-propylidenes; butan-2-ol-1,4-diyl;
- Arylenes selected from the group comprising: 1, 2-phenylenes; 1, 3-phenylene; 1, 4-phenylene; 1, 2-naphthylenes;
- Heteroarylenes selected from the group comprising: pyridinoxynyl; quinolinediyl; pyrazodiyl; pyrazolediyl; triazolediyl; pyrazinediyl, thiophenediyl; and imidazolediyl, where the
- Heterocycloalkylenes selected from the group comprising: piperidin-1, 2-ylene; piperidine-2, 6-ethylenes; piperidine-4,4-ylidenes; 1,4-piperazine-1, 4-ethylene; 1, 4 -piperazine-2, 3 -ylene; 1,4-piperazin-2, 5-ylene; 1,4-piperazine-2,6-ylene; 1,4-piperazine-1,2-ylene; 1,4-piperazine-1,3-ylene; 1,4-piperazine-1,4-ethylene; tetrahydrothiophene-2, 5-ylene; tetrahydrothiophene-3, 4-ethylene; tetrahydrothiophene-2, 3-ethylene; tetrahydrofuran-2, 5-ylene; tetrahydrofuran-3, 4-ethylene; tetrahydrofuran-2,3-ethylene; pyrrolidin-2, 5-ylene; pyrrolidine-3, 4-butylene; pyrrolidine-2, 3-
- Heterocycloalkyl selected from the group comprising: pyrrolinyl; pyrrolidinyl; morpholinyl; piperidinyl; piperazinyl; hexamethylene imine; 1,4-piperazinyl; tetrahydrothiophenyl; tetrahydrofuranyl; 1,4,7-triazacyclononanyl; 1,4,8, IItetraazacyclotetradecanyl; 1,4,7,10,13-pentaazacyclopentadecane; 1, 4-diaza- 7 -thiacyclononanyl; 1,4-diaza- 7-oxacyclo-nonanyl; 1, 4, 7, 10-tetraazacyclododecanyl; 1, 4 - dioxanyl; 1,4,7-trithiacyclononanyl; tetrahydropyranyl; and oxazolidinyl, wherein the heterocycloalkyl may be linked to the compound via any atom in the
- Amines the group - (R) 2 wherein each R is independently selected from: hydrogen; Cl-C6-alkyl; Cl - C6 alkyl -C6H5; and phenyl, wherein when both R 'are C1-C6 alkyl, both R' can form a - NC3 to NC5 heterocyclic ring wherein the remaining alkyl chain is a
- Haloalkyl selected from the group consisting of mono-, di-, tri-, poly- and perhalogenated linear and branched C1-C8-alkyl, in particular -CF3.
- Pseudohalogen selected from the group consisting of -CN, -SCN, -OCN, N3, -CNO and -SeCN.
- Aryl selected from the group comprising: phenyl; biphenyl; naphthalenyl; anthracenyl; and phenanthrenyl, arylenes:
- Heteroaryl selected from the group comprising: pyridinyl; pyrimidinyl; chinoninyl; pyrazolyl; triazolyl; isoquinoninyl; imidazolyl; and oxazolidinyl, wherein the heteroaryl is selected with the compound above each atom in the ring
- Heteroarylenes selected from the group comprising: pyridine 2,3-diyl; pyridine-2, 4-diyl; pyridine-2, 6-diyl; pyridine-3, 5-diyl; quinoline-2, 3-diyl; quinoline-2, 4-diyl; isoquinolin-
- heterocycloalkyl selected from the group comprising: pyrrolidinyl; morpholinyl; piperidinyl; piperidinyl; 1,4-piperazinyl; tetrahydrofuranyl; 1, 4, 7-triazacyclononanyl; 1, 4, 8, 11-tetraazacyclotetradecanyl; 1,4,7,10,13-pentaazacyclopentadecanyl; 1, 4, 7, 10-tetraazacyclododecanyl; and piperazinyl, where the heteroaryl may be linked to the compound via any atom in the ring of the selected heteroaryl,
- Heterocycloalkylenes selected from the group comprising: piperidin-2, 6-ylene; piperidin-4, 4-ylidenes; 1, 4 -piperazine-
- heterocycloalkyl is selected from the group consisting of: piperidinyl; 1,4-piperazinyl; tetrahydrofuranyl; 1, 4, 7-triazacyclononanyl; 1, 4, 8, 11-tetraazacyclotetradecanyl; 1, 4, 7, 10, 13-pentaazacyclopentadecanyl; 1, 4, 7, 10-tetraazacyclododecanyl; and pyrrolidinyl, wherein the heterocycloalkyl with the compound is above each atom in the ring of the selected heterocycloalkyl
- ESIPT molecules can be connected.
- the following molecules can be used as ESIPT molecules: Benzoxazoles and benzothiazoles, in particular 2- (2-hydroxyphenyl) -benzothiazole, 2- (2'-hydroxyphenyl) benzoxazole and their derivatives which react with other aromatic rings, such as. Phenyl, pyridine, naphthyl, quinoline, indole, pyrazine, acridine, anthracenes,
- Benzo [a] pyrene Benzo [a] pyrene
- fluoranthenes fluorenes
- pyrenes pyrenes
- chrysenes phenanthrenes which have a hydroxy or thiol group in the 2-position.
- molecules having the following structures or tautomeric limit formulas can also be used as ESIPT molecules:
- ICT molecules that can be used in the organic optoelectronic devices of the present invention have the following general
- substituents Ri to R4 wherein in particular the substituents R 7 to R15 on the anthracene ring may each be independently hydrogen
- the substituent RH in the anthracene ring of the formula I or the substituent R7 in the formula IV can also be an electron-withdrawing group RA, for example, -CN, -SCN, or halogen.
- the substituents can also be bridged with one another.
- the compounds can in particular be used in the overview ⁇ article "Structural Changes Accompanying Intramolecular Electron Transfer: Focus on Twisted Intramolecular Charge Transfer States and Structures", Grabowski et al Che Rev. 2,003th. , 3899 to 4031, pages 3976 to 4031, to which reference is hereby incorporated by reference.
- the ICT molecules can have electron donor and electron acceptor groups in the molecule via which the intramolecular charge transfer takes place.
- molecules having the following structures can be used as ICT molecules:
- phosphorescent as well as fluorescent emitter materials are used, in particular blue, green and red phosphorescent emitter, which in the following more detail
- a blue phosphorescent emitter material may be selected from the group consisting of FIrPic (bis (3,5-difluoro-2- (2-pyridyl) phenyl- (2-carboxypyridyl) -iridium III), FIr6 (Bis (48, 68) difluorophenylpyridinato) tetrakis (1-pyrazolyl) borate iridium III) and from mixtures of
- the emitter materials mentioned have their emission maximum in the blue spectral range.
- Green phosphorescent emitter material may be selected from the group consisting of Ir (ppy) 3 (tris (2-phenylpyridine) iridium (III)), Ir (mppy) 3 (tris [2- (p-tolyl) pyridine] iridium (III )), Ir (ppy) 2 (acac) (bis (2-phenylpyridine) (acetylacetonate) iridium (II)), Ir (mppy) 2 (acac) (bis [2- (p-tolyl) pyridine] (acetylacetonate) iridium (III)), bis [1- (9,9-dimethyl-9H-fluoren-2-yl) isoquinoline] (acetylacetonate) iridium (III), iridium (III) tris (2- (4-tolyl ) pyridinato-N, C2), as well as from mixtures of the aforementioned substances.
- the emitter materials mentioned have their emission maximum
- red phosphorescent emitter material can be any organic compound that can be used for emitting red phosphorescent light.
- Emitter material selected from the group consisting of Ir (mdq) 2 (acac) (bis (2-methyldibenzo [f, h] -quinoxaline) (acetylacetonate) iridium (III)),
- Ir (fliq) 2 (acac) -1 bis [1- (9,9-dimethyl-9H-fluoren-2-yl) -isoquinoline] (acetylacetonate) iridium (III)
- Ir (flq) 2 (acac) -2 bis [3- (9,9-dimethyl-9H-fluoren-2-yl) -isoquinoline] (acetylacetonate) iridium (III)), bis [2- (9,9-dibutylfluorenyl) -1-isoquinoline] (acetylacetonate) iridium (III), bis [2- (9, 9-dihexylfluorenyl) -1-pyridine] (acetylacetonate) iridium (III), Ru (dtb-bpy) 3 * 2 (PF 6 ) (Tris [4, 4'-di-tert-butyl- (2,2 ') -bipyr
- fluorescent emitter also fluorescent emitter can be used, for.
- the dual emitter, as well as the more emitters may be incorporated as dopants in charge carrier transporting matrix ⁇ materials.
- This may for example be selected from a group consisting of mCP (1,3-bis (carbazol-9-yl) benzene), TCP (1, 3, 5-tris (carbazol) -9-yl) benzene), TCTA ( 4, 4 ', 4 "-tris (carbazol-9-yl) triphenylamine), TPBi (1,3,5-tris (1-phenyl-1H-benzimidazol-2-yl) benzene), CBP (4, 4 -Bis (carbazol-9-yl) biphenyl), CDBP (4,4'-bis (9-carbazolyl) -2, 2'-dimethylbiphenyl), (DMFL-CBP 4,4'-
- 2CBP (9,9-bis (4-carbazol-9-yl) -phenyl) fluorene, also abbreviated as CPF), DPFL-CBP (4,4'-bis (carbazol-9-yl) -9,9-ditolylfluorene), FL-2CBP (9,9-bis (9-phenyl-9H-carbazole) fluorene), Spiro-CBP (2, 2 ', 7, 7' tetrakis (carbazol-9-yl) -9,9'-spiro-bifluorene), ADN (9,10-di (naphth-2-yl) anthracene, TBADN (3-tert-butyl-9,10-di (naphth-2-yl) anthracene, DPVBi (4,4'-bis (2,2-diphenyl-ethen-1-yl) -4,4'-dimethylphenyl) , p-DMDPVB
- aromatic materials having a high stick ⁇ matter content such as the materials mCP, TCTA, TPBi, BCP, BPhen, CBP, CDBP and CPF (ie FL-2CBP) or metal complexes, such as Alq.
- organic optoelectronic devices can be produced which have a CRI value of> 80, preferably of> 90 and particularly preferably of> 95.
- the light source is compared with a reference ⁇ spectrally measured light source.
- the CRI value is a measure of the deviation between the emission spectra of the light source and the reference light source.
- a high CRI value can be achieved in that the white spectrum of the organic, optoelectronic device in the visible range of the
- Spectrum of a black radiator is as similar as possible, so as far as possible covers the visible area and
- the radiation-emitting region in which the dual and the further emitter are arranged can have one or more organic radiation-emitting layers, the dual emitter and the further emitter being emitted in different layers or in the same radiation-emitting region
- Layer of the radiation-emitting region can be arranged. Furthermore, intermediate layers between the radiation-emitting layers in the radiation-emitting region of the organic optoelectronic device can still be used
- charge carrier-generating layers can be n-doped and p-doped regions,
- inject include.
- the radiation-emitting region comprises a radiation-emitting layer in which both the dual emitter and the further emitter can be arranged.
- the second is
- a dual emitter having emission from the second electronically excited state in the green spectral region may be combined with another emitter emitting light in a blue spectral region in a layer.
- emitting emitter be increased by in this Layer is additionally doped a dual emitter having an emission from the second electronically excited state in a green spectral range. Due to the arrangement of two different emitters in one layer, the number of organic layers in the organic optoelectronic device decreases. Further, since the states of the locally excited form of the green emitter formed after electrical excitation are similar to those of conventional fluorescent blue emitters, it is expected that both materials can be doped into the same matrix without loss of efficiency.
- a plurality of radiation-emitting layers in the radiation-emitting region wherein a first layer has a further blue emitter, and the second layer has further red and yellow emitting emitters, increased by a dual emitter emitting green from the second excited electronic state into the blue-emitting layer is introduced.
- the radiation-emitting region has two directly adjacent first and second radiation-emitting layers, the dual emitter being arranged in the first layer and the further emitter being arranged in the second layer.
- the dual emitter being arranged in the first layer and the further emitter being arranged in the second layer.
- Boundary interface of the two layers greatly reduced when the population of the second electronic ground state of the dual emitter is low.
- the latter is again the case when the transition, starting from the second electronic Ground state in the first electronic ground state faster than the radiation-emitting transition, starting from the second electronically excited state in the second electronic ground state.
- Layers are arranged with the further and the dual emitter directly adjacent to each other, without necessarily ⁇ between these radiation-emitting
- the radiation-emitting region can be a dual and a further emitter combined with each other, wherein the energy level ⁇ distance between the electronically excited state and the ground state of the further emitter between the energy level intervals of the first electronically excited state and the first electronic ground state and the second electronically excited state and the second electronic ground state of the dual emitter (see, eg, Fig. 2). Due to this specific arrangement of the energy levels, an energy transfer from S * -l to the further emitter can take place. However, the non-radiative intramolecular transition (ESIPT or ICT) is faster than the ESIPT or ICT
- the radiation-emitting region comprises several different ones
- Layers each have a dual emitter and the dual emitters each light in a different spectral Emit area.
- further emitters can also be introduced, or these layers can also contain only dual emitters exclusively.
- a dual emitter is used, the emission being from both the first electronically excited state and the second electronically excited state. This can
- the emission from the first excited state may be between 30-80% of the total emission of the dual emitter, preferably 40-50%.
- the wavelength of the light emitted from these two electronically excited states can be shifted by several 10 nm from each other and can have a different spectral shape.
- the emitted radiation from the second electronically excited state is lower energy and, as a rule, spectrally wider than the emitted radiation from the first electronically excited state.
- the total radiation emitted by the dual emitter in this case is a superposition of the two radiations emitted from the first electronic state and from the second electronic state.
- Matrix material in which the dual emitter is introduced as a dopant can affect the ratio of emissions from the first and second electronically excited state. be flown. This allows the relative intensity of the
- Radiation from the second electronically excited state and the first electronically excited state can be varied. This also has an effect on the overall spectrum of the light emitted by the organic optoelectronic device.
- Emitters can only be used with a dual emitter exhibiting two emission peaks, e.g.
- the dual emitter may cover the blue and green portions or the yellow and red portions of the visible spectral range.
- organic optoelectronic device emitted radiation thus has a high color stability even at long
- the organic optoelectronic device comprises a radiation-emitting region having a first and a second
- Radiation-emitting layers can by a
- Interlayer be separated from each other.
- Interlayer be separated from each other.
- the charge carrier generating layer may comprise a p-doped and an n-doped layer, which may be separated by a thin insulating layer.
- a charge carrier transporting layer can also be used as the intermediate layer.
- white light emitting organic optoelectronic devices in particular OLEDs are realized, which have a high CRI value and at least two radiation-emitting layers in
- the first radiation-emitting layer comprises at least one dual emitter and the second radiation-emitting layer
- the first radiation-emitting layer emits light in a blue ⁇ green spectral range (430 to 570 nm), wherein the first radiation-emitting layer comprises a dual-emitter, the emission starting from the second excited state in a green spectral region (490 to 570 nm) and another emitter having emission in a blue spectral range (430 to 490 nm).
- the second radiation-emitting layer emits radiation in a yellow-red spectral range (570 to 780 nm), wherein a yellow-emitting and a red-emitting further emitter are present in this layer.
- this radiation ⁇ emitting layer comprises a dual emitter having an emission from the second electronically excited state in a red spectral range (595 to 780 nm) and comprises a further emitter, the light in a yellow
- Layer are present, each having further emitters and of which one radiation in the blue spectral range and the other radiation is emitted in the green spectral range.
- each dual emitter is arranged in two radiation-emitting layers.
- the dual emitters have an emission from both electronically excited states. As a result, the entire blue-green, or the yellow-red, can be achieved by a dual emitter
- an organic optoelectronic device for emitting white light comprising:
- Electrode can inject charge carriers of different polarity in the radiation-emitting region, wherein
- the dual emitters has different dual emitters, - Wherein the dual emitters each have a first
- organic optoelectronic devices described in this invention can be used as bottom emitters
- Figure 1 shows the energy level scheme of a dual LED
- Figure 2 shows the energy level scheme of a dual emitter compared to a conventional one
- FIG. 3 shows a stacked layer sequence of a
- FIG. 4 shows a stacked layer sequence of a
- FIG. 5 shows a stacked layer sequence of a
- FIG. 6 shows a stacked layer sequence of a
- FIG. 7 shows a stacked layer sequence of a
- FIG. 8 shows a stacked layer sequence of a
- FIG. 9 shows a stacked layer sequence of a
- organic optoelectronic device according to a seventh embodiment.
- identical, identical or identically acting elements can each be provided with the same reference numerals.
- the illustrated elements and their proportions with each other are not to be regarded as true to scale, but individual elements, such as layers, components, components and areas, for better representation and / or better understanding may be exaggerated.
- Figure 1 shows the energy level scheme of a dual emitter. The absorption of a photon induces an electronic
- the dual emitter can in principle emit radiation from both electronically excited states. Insofar as the transition from the first electronically excited state (S * - 1) to the second electronically excited state (S * -2) occurs faster than the radiative transition from the first electronically excited state (S * -l) into the second electronically excited state first
- Figure 2 shows the energy level scheme of a dual emitter compared to another emitter.
- the energy level distance between the electronic ground state (So) and the electronically excited state (S *) of the further emitter lies between the energy level intervals between the first electronically excited state (S * -l) and the first electronic ground state (So _ l) and the second electronically excited state (S * -2) and the second electronic ground state (So _ 2) of the dual
- the dual emitter mainly a
- both emitters can be arranged in a layer without causing the quenching of radiation. There are no efficiency-reducing energy transfer processes, as the transition between the first electronically excited state (S * -l) and the first electronic energy transfer takes place
- Ground state (So _ l) of the dual emitter is higher energy than the energy level distance between the electronically excited state (S *) and the electronic ground state (So) of the other emitter and extinguishing by the
- So _ 2 Basic state in a rapid transition from this state to the first electronic ground state, not or can be done only to a minor extent.
- FIG. 3 shows an organic optoelectronic device according to a first exemplary embodiment of the invention, which has a stacked layer sequence.
- a substrate on which an anode (2), a hole injection layer (3), a radiation-emitting region (4), a
- the first radiation-emitting layer (5) can be any one of the materials listed above.
- emit radiation in a blue-green spectral range and includes a dual emitter the one
- the second radiation-emitting layer (7) emits radiation in a yellow-red spectral range.
- this radiation-emitting layer may comprise a dual emitter which emits an emission from the second electronically excited state in a red emitter
- FIG. 4 shows an organic optoelectronic device according to a second exemplary embodiment of the invention. Here are on a substrate (1) an anode (2), a
- Region (4) an electron injection layer (8) and a cathode (9) arranged one above the other. It includes the
- the first radiation ⁇ emitting layer (10) emits radiation in a blue spectral region
- the second radiation-emitting layer (11) emits radiation in a green spectral region
- the third radiation-emitting layer (12) emitted
- the first (10) and second radiation-emitting layers (11) are in direct contact with each other. These two radiation-emitting layers are of the third radiation-emitting layer (12) through an intermediate layer
- the first radiation-emitting layer (10) has a further emitter which emits light in a blue spectral range.
- the second radiation-emitting layer (11) has a dual emitter which emits from the second electronically excited state in a green
- the third radiation-emitting layer (12) emits radiation in a yellow-red
- the third radiation-emitting layer (12) may comprise a further emitter, the
- Spectral range include.
- FIG. 5 shows an organic optoelectronic device according to a third exemplary embodiment of the invention.
- a substrate (1) an anode (2)
- a substrate (2) an anode (2)
- the radiation-emitting region (4) comprises a first radiation ⁇ emitting layer (10), a second radiation layer (11), a first intermediate layer / charge ⁇ generating layer (6), a third radiation-emitting layer (13) and a fourth radiation-emitting layer (14).
- the first (10) and second radiation-emitting layers (11) are separated from the third (13) and fourth radiation-emitting layers (14) by the interlayer / charge carrier generating layer (6).
- the first (10) and the third radiation ⁇ emitting layer (13) comprise a further emitter, wherein the first radiation-emitting layer (10) radiation in a blue spectral range and the third
- the second (11) and fourth radiation-emitting layers (14) each comprise a dual emitter having mainly emission from the second electronically excited state, the second radiation-emitting layer (11) emitting radiation in a green spectral range and the fourth radiation-emitting Layer (14) emits radiation in a red spectral range.
- FIG. 6 shows an organic optoelectronic device according to a fourth exemplary embodiment of the invention.
- an anode (2), a hole injection layer (3) are again on a substrate (1) via a layer structure
- the radiation-emitting region (4) comprises a first radiation-emitting layer (15) on which a first intermediate layer / charge carrier-generating layer (6) is arranged. Above it are a second one
- the second (13) and third radiation-emitting layer (14) are in direct contact with each other, wherein the first radiation-emitting layer (15) of the second (13) and third radiation ⁇ emitting layer (14) by an intermediate layer / charge carrier generating layer ( 6) is disconnected.
- the first radiation-emitting layer (15) emits radiation in a blue-green spectral range
- the second radiation-emitting layer (13) emits radiation in a yellow spectral range
- the third radiation-emitting layer (14) emits radiation in a red spectral range.
- the first radiation-emitting layer (15) comprises a further emitter which emits radiation in a blue spectral range and a dual emitter which mainly has an emission from the second electronically excited state in a green spectral range.
- the second radiation-emitting layer (13) comprises a further emitter, the radiation in a yellow
- the third radiation-emitting Layer (14) comprises a dual emitter which emits primarily an emission from the second electronically excited state in the red spectral region.
- FIG. 7 shows an organic optoelectronic device according to a fifth exemplary embodiment of the invention.
- an anode (2), a hole injection layer (3), a radiation-emitting region (4), an electron injection layer (8) and a cathode (9) are arranged one above the other on a substrate (1).
- the radiation-emitting region (4) comprises a first radiation-emitting layer (16), a first intermediate-layer / charge-carrier-generating layer (6) and, arranged above this, a second radiation-emitting layer (17).
- Radiation-emitting layer (17) are characterized by the following abbreviations:
- Layer (16) emits radiation in a blue-green
- Spectral region and the second radiation-emitting layer (17) emits radiation in a yellow-red spectral range.
- Both the first radiation-emitting layer (16) and the second radiation-emitting layer (17) have a dual emitter, wherein an emission takes place from both electronically excited states.
- FIG. 8 shows an organic optoelectronic device according to a sixth embodiment of the invention.
- the radiation-emitting region (4) comprises a first radiation-emitting layer (18), a first intermediate layer / charge-carrier-generating layer (6), a second radiation-emitting layer (19).
- the first (18) and second radiation-emitting layers (19) are separated from each other by an interlayer / charge carrier generating layer (6).
- the first radiation-emitting layer (18) emits radiation in a blue ⁇ green spectral range, while the second radiation ⁇ emitting layer (19) radiation yellow-red in a
- the first radiation-emitting layer (18) comprises a dual emitter emitting radiation in a blue-green spectral region, the dual emitter having emission from both electronically excited states.
- the second radiation ⁇ emitting layer (19) further emitter which emits radiation in each of a yellow and red spectral range.
- Figure 9 shows an organic optoelectronic device according to a seventh embodiment of the invention with a substrate, an anode, a cathode and the
- the radiation-emitting region (4) comprises a first radiation-emitting layer (20), a first one
- the first (20) and second radiation-emitting layers (21) are separated from each other by an interlayer / carrier-generating layer (6).
- the first radiation-emitting layer (20) comprises a further emitter which emits radiation in a blue spectral range and a dual emitter
- Emitter which is mainly a radiation from the second electronically excited state in a green
- Spectral range has.
- the second includes
- Radiation-emitting layer (21) a dual emitter emitting radiation in a yellow-red spectral region, wherein the dual emitter has an emission from both electronically excited states.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020167025211A KR20160135196A (ko) | 2014-03-21 | 2015-03-16 | 유기 광전자 장치 |
US15/128,099 US20170125695A1 (en) | 2014-03-21 | 2015-03-16 | Organic optoelectronic apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014103943.2 | 2014-03-21 | ||
DE102014103943.2A DE102014103943B4 (de) | 2014-03-21 | 2014-03-21 | Organische optoelektronische Vorrichtungen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015140110A1 true WO2015140110A1 (de) | 2015-09-24 |
Family
ID=52672272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/055443 WO2015140110A1 (de) | 2014-03-21 | 2015-03-16 | Organische optoelektronische vorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170125695A1 (de) |
KR (1) | KR20160135196A (de) |
DE (1) | DE102014103943B4 (de) |
WO (1) | WO2015140110A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014116613B4 (de) | 2014-11-13 | 2023-05-04 | Osram Oled Gmbh | Optoelektronische Vorrichtung, Verwendung eines dualen Emitters als Wellenlängenkonversionsstoff |
US11390639B2 (en) * | 2018-04-13 | 2022-07-19 | Universal Display Corporation | Organic electroluminescent materials and devices |
CN109742251B (zh) | 2019-01-08 | 2022-05-13 | 京东方科技集团股份有限公司 | 一种oled器件、显示面板及显示装置 |
CN112164753B (zh) * | 2020-09-28 | 2022-01-11 | 京东方科技集团股份有限公司 | Oled器件及其制备方法、显示基板及显示装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101781652B1 (ko) | 2008-12-11 | 2017-10-23 | 오스람 오엘이디 게엠베하 | 유기발광다이오드 및 조명수단 |
KR101763424B1 (ko) | 2009-04-21 | 2017-08-02 | 동우 화인켐 주식회사 | 여기 상태 분자내 양성자 이동 특성을 이용한 백색 발광 단분자 화합물, 이를 포함하는 유기 전계 발광 소자 및 레이저 소자 |
US9079885B2 (en) | 2010-12-16 | 2015-07-14 | The University Of Southern California | Fluorescent isoindoline dyes |
DE102011076791A1 (de) * | 2011-05-31 | 2012-12-06 | Osram Opto Semiconductors Gmbh | Organisches elektrolumineszierendes bauelement |
DE102014116613B4 (de) * | 2014-11-13 | 2023-05-04 | Osram Oled Gmbh | Optoelektronische Vorrichtung, Verwendung eines dualen Emitters als Wellenlängenkonversionsstoff |
-
2014
- 2014-03-21 DE DE102014103943.2A patent/DE102014103943B4/de active Active
-
2015
- 2015-03-16 WO PCT/EP2015/055443 patent/WO2015140110A1/de active Application Filing
- 2015-03-16 US US15/128,099 patent/US20170125695A1/en active Pending
- 2015-03-16 KR KR1020167025211A patent/KR20160135196A/ko unknown
Non-Patent Citations (3)
Title |
---|
S. KIM ET AL: "White Luminescence from Polymer Thin Films Containing Excited-State Intramolecular Proton-Transfer Dyes", ADVANCED MATERIALS, vol. 17, no. 17, 5 September 2005 (2005-09-05), pages 2077 - 2082, XP055200145, ISSN: 0935-9648, DOI: 10.1002/adma.200401739 * |
SANGHYUK PARK ET AL: "A White-Light-Emitting Molecule: Frustrated Energy Transfer between Constituent Emitting Centers", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 131, no. 39, 7 October 2009 (2009-10-07), pages 14043 - 14049, XP055200277, ISSN: 0002-7863, DOI: 10.1021/ja902533f * |
SE HUN KIM ET AL: "Organic Light-Emitting Diodes with a White-Emitting Molecule: Emission Mechanism and Device Characteristics", ADVANCED FUNCTIONAL MATERIALS, WILEY - V C H VERLAG GMBH & CO. KGAA, DE, vol. 21, no. 4, 22 February 2011 (2011-02-22), pages 644 - 651, XP001560454, ISSN: 1616-301X, [retrieved on 20101206], DOI: 10.1002/ADFM.201001779 * |
Also Published As
Publication number | Publication date |
---|---|
KR20160135196A (ko) | 2016-11-25 |
DE102014103943B4 (de) | 2019-12-05 |
DE102014103943A1 (de) | 2015-09-24 |
US20170125695A1 (en) | 2017-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102014116613B4 (de) | Optoelektronische Vorrichtung, Verwendung eines dualen Emitters als Wellenlängenkonversionsstoff | |
EP2652810B9 (de) | Verfahren zur herstellung einer strahlungsemittierenden organisch-elektronischen vorrichtung | |
CN102017216B (zh) | 具有空穴注入传输层的器件及其制造方法、以及用于形成空穴注入传输层的墨液 | |
EP2303815B1 (de) | Organische elektrolumineszenzvorrichtung | |
EP3573973B1 (de) | Carbazolderivate | |
DE102009041289A1 (de) | Organische Elektrolumineszenzvorrichtung | |
DE602004008472T2 (de) | Mehrfachfluoriertes leitermaterial für leds zur verbesserung der lichtauskopplung | |
EP3235020B1 (de) | Ambipolare hostmaterialien für optoelektronische bauelemente | |
EP3538623A1 (de) | Verbindungen mit einer akzeptor- und einer donorgruppe | |
EP2652809B1 (de) | Organisches lichtemittierendes bauelement und verwendung eines kupferkomplexes in einer ladungstransportschicht | |
DE102014103943B4 (de) | Organische optoelektronische Vorrichtungen | |
Deng et al. | Improving the stability of green thermally activated delayed fluorescence OLEDs by reducing the excited-state dipole moment | |
Marcantonio et al. | Performance Enhancement by ZnO Nanoparticle Layer in Hybrid Ionic Transition Metal Complex‐Light‐Emitting Electrochemical Cells (iTMC‐LECs) | |
DE102010009193B4 (de) | Zusammensetzung enthaltend Fluor-Fluor Assoziate, Verfahren zu deren Herstellung, deren Verwendung sowie organische elektronische Vorrichtung diese enthaltend | |
EP2675868B1 (de) | Verbindungen für elektronische vorrichtungen | |
WO2012136422A1 (de) | Optoelektronisches bauelement und verwendung eines kupferkomplexes als dotierstoff zum dotieren einer schicht | |
WO2014048753A1 (de) | Phosphoroxo-salze als n-dotierstoffe für die organische elektronik | |
Tankelevičiūtė et al. | The Blue Problem: OLED Stability and Degradation Mechanisms | |
EP3028318A1 (de) | Elektrooptische vorrichtung und deren verwendung | |
WO2017055283A1 (de) | Organisches elektronisches bauteil mit ladungsträger-generationsschicht und verwendung eines zinkkomplexes als p-dotierstoff in ladungsträgergenerationsschichten | |
DE102013103156A1 (de) | Strahlungsemittierende organisch-elektronische Vorrichtung und Verfahren zur Herstellung einer strahlungsemittierenden organisch-elektronischen Vorrichtung | |
Li et al. | High performance yellow phosphorescent organic light-emitting diodes based on an efficient carriers regulating structure with iridium complex as electron manager | |
Park et al. | Driving voltage reduction and efficiency increase by narrow bandgap host materials in phosphorescent organic light-emitting diodes | |
DE102011104169A1 (de) | Strahlungsemittierendes Bauelement und Verfahren zur Herstellung eines strahlungsemittierenden Bauelements | |
DE102020108402A1 (de) | Organische elektronische Vorrichtung, organisches halbleitendes Material, eine Trioxatriborinanverbindung und deren Verwendung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15709712 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20167025211 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15128099 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15709712 Country of ref document: EP Kind code of ref document: A1 |