WO2015080404A1 - Composé pour élément électrique organique, élément électrique organique l'utilisant et dispositif électronique correspondant - Google Patents

Composé pour élément électrique organique, élément électrique organique l'utilisant et dispositif électronique correspondant Download PDF

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WO2015080404A1
WO2015080404A1 PCT/KR2014/010825 KR2014010825W WO2015080404A1 WO 2015080404 A1 WO2015080404 A1 WO 2015080404A1 KR 2014010825 W KR2014010825 W KR 2014010825W WO 2015080404 A1 WO2015080404 A1 WO 2015080404A1
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organic
light emitting
compound
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Korean (ko)
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이범성
이선희
김대성
박정철
이윤석
소기호
윤진호
오대환
김석현
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덕산네오룩스 주식회사
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Definitions

  • the present invention relates to a compound for an organic electric device, an organic electric device using the same, and an electronic device thereof.
  • organic light emitting phenomenon refers to a phenomenon of converting electrical energy into light energy using an organic material.
  • An organic electric element using an organic light emitting phenomenon usually has a structure including an anode, a cathode, and an organic material layer therebetween.
  • the organic layer is often made of a multi-layer structure composed of different materials in order to increase the efficiency and stability of the organic electric device, for example, it may be made of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and an electron injection layer.
  • the material used as the organic material layer in the organic electric element may be classified into a light emitting material and a charge transport material such as a hole injection material, a hole transport material, an electron transport material, an electron injection material and the like according to a function.
  • Efficiency, lifespan, and driving voltage are related to each other, and as efficiency increases, the driving voltage decreases relatively, and as the driving voltage decreases, crystallization of organic materials due to Joule heating generated during driving decreases. It shows a tendency to increase the life.
  • a light emitting auxiliary layer must exist between the hole transport layer and the light emitting layer, and each light emitting layer (R, G, B) It is time to develop another light emitting auxiliary layer.
  • electrons are transferred from the electron transport layer to the light emitting layer, and holes are transferred from the hole transport layer to the light emitting layer to generate excitons by recombination.
  • the material used in the hole transport layer since it has to have a low HOMO value, most have a low T1 value, which causes the exciton generated in the light emitting layer to be transferred to the hole transport layer, and as a result, in the hole transport layer or at the hole transport layer interface.
  • the light emission results in a decrease in color purity, efficiency and lifespan of the organic electric element.
  • the driving voltage can be reduced by using a material having a high hole mobility, but the hole mobility is faster than the electron mobility, resulting in charge unbalance in the light emitting layer.
  • the color purity and efficiency of the electric device is lowered and the lifespan is shortened.
  • the OLED device is mainly formed by a deposition method, which requires development of a material that can withstand a long time during deposition, that is, a material having strong heat resistance.
  • the materials constituting the organic material layer in the device such as a hole injection material, a hole transport material, a light emitting material, an electron transport material, an electron injection material, a light emitting auxiliary layer material, etc.
  • a hole injection material such as a hole injection material, a hole transport material, a light emitting material, an electron transport material, an electron injection material, a light emitting auxiliary layer material, etc.
  • the material should be preceded, but development of a stable and efficient organic material layer for an organic electric device has not been made yet. Therefore, the development of new materials continues to be required, and in particular, the development of materials for the light emitting auxiliary layer and the hole transport layer is urgently required.
  • An object of the present invention is to provide a compound capable of improving high luminous efficiency, low driving voltage, high heat resistance, color purity and lifetime of an element, an organic electric element using the same, and an electronic device thereof.
  • the present invention provides a compound represented by the following formula.
  • the present invention provides an organic electronic device using the compound represented by the above formula and an electronic device thereof.
  • FIG. 1 is an exemplary view of an organic electroluminescent device according to the present invention.
  • halo or halogen as used herein is fluorine (F), bromine (Br), chlorine (Cl) or iodine (I) unless otherwise indicated.
  • alkyl or “alkyl group” has a single bond of 1 to 60 carbon atoms, unless otherwise indicated, and is a straight chain alkyl group, branched chain alkyl group, cycloalkyl (alicyclic) group, alkyl-substituted cyclo Radicals of saturated aliphatic functional groups, including alkyl groups, cycloalkyl-substituted alkyl groups.
  • heteroalkyl group means that at least one of the carbon atoms constituting the alkyl group has been replaced with a heteroatom.
  • alkenyl group or “alkynyl group”, unless stated otherwise, has a double or triple bond of 2 to 60 carbon atoms, and includes a straight or branched chain group, and is not limited thereto. It is not.
  • cycloalkyl refers to alkyl forming a ring having 3 to 60 carbon atoms, without being limited thereto.
  • alkoxyl group means an alkyl group to which an oxygen radical is attached, and unless otherwise specified, has a carbon number of 1 to 60, and is limited herein. It is not.
  • alkenoxyl group means an alkenyl group to which an oxygen radical is attached, and unless otherwise stated, it is 2 to 60 It has carbon number of, It is not limited to this.
  • aryloxyl group or “aryloxy group” means an aryl group to which an oxygen radical is attached, and unless otherwise specified, has a carbon number of 6 to 60, but is not limited thereto.
  • aryl group and “arylene group” have a carbon number of 6 to 60 unless otherwise stated, but is not limited thereto.
  • an aryl group or an arylene group means an aromatic of a single ring or multiple rings, and includes an aromatic ring formed by neighboring substituents participating in a bond or a reaction.
  • the aryl group may be a phenyl group, a biphenyl group, a fluorene group, a spirofluorene group.
  • aryl or "ar” means a radical substituted with an aryl group.
  • an arylalkyl group is an alkyl group substituted with an aryl group
  • an arylalkenyl group is an alkenyl group substituted with an aryl group
  • the radical substituted with an aryl group has the carbon number described herein.
  • an arylalkoxy group means an alkoxy group substituted with an aryl group
  • an alkoxylcarbonyl group means a carbonyl group substituted with an alkoxyl group
  • an arylcarbonylalkenyl group means an alkenyl group substituted with an arylcarbonyl group.
  • the arylcarbonyl group is a carbonyl group substituted with an aryl group.
  • heteroalkyl means an alkyl including one or more heteroatoms unless otherwise indicated.
  • heteroaryl group or “heteroarylene group” means an aryl group or arylene group having 2 to 60 carbon atoms, each containing one or more heteroatoms, unless otherwise specified. It may include at least one of a single ring and multiple rings, and may be formed by combining adjacent functional groups.
  • heterocyclic group includes one or more heteroatoms, unless otherwise indicated, and has from 2 to 60 carbon atoms, and includes at least one of single and multiple rings, heteroaliphatic rings and hetero Aromatic rings. Adjacent functional groups may be formed in combination.
  • heteroatom refers to N, O, S, P or Si unless otherwise stated.
  • Heterocyclic groups may also include rings comprising SO 2 in place of the carbon forming the ring.
  • a “heterocyclic group” includes the following compounds.
  • aliphatic as used herein means an aliphatic hydrocarbon having 1 to 60 carbon atoms
  • aliphatic ring means an aliphatic hydrocarbon ring having 3 to 60 carbon atoms.
  • ring refers to a fused ring consisting of an aliphatic ring having 3 to 60 carbon atoms or an aromatic ring having 6 to 60 carbon atoms or a hetero ring having 2 to 60 carbon atoms or a combination thereof. Saturated or unsaturated rings.
  • heterocompounds or heteroradicals other than the aforementioned heterocompounds include, but are not limited to, one or more heteroatoms.
  • substituted in the term “substituted or unsubstituted” refers to deuterium, halogen, amino groups, nitrile groups, nitro groups, C 1 -C 20 alkyl groups, C 1 -C 20 alkoxyl group, C 1 -C 20 alkylamine group, C 1 -C 20 alkylthiophene group, C 6 -C 20 arylthiophene group, C 2 -C 20 alkenyl group, C 2 -C 20 alkynyl, C 3 -C 20 cycloalkyl group, C 6 -C 20 aryl group, of a C 6 -C 20 aryl group substituted with a heavy hydrogen, C 8 -C 20 aryl alkenyl group, a silane group, a boron Substituted by at least one substituent selected from the group consisting of a group, a germanium group, and a C 2 -C
  • the substituent R 1 when a is an integer of 0, the substituent R 1 is absent, when a is an integer of 1, one substituent R 1 is bonded to any one of carbons forming the benzene ring, and a is an integer of 2 or 3 are each bonded as follows, where R 1 may be the same or different from each other, and when a is an integer from 4 to 6, it is bonded to the carbon of the benzene ring in a similar manner, while the indication of hydrogen bonded to the carbon forming the benzene ring Is omitted.
  • FIG. 1 is an exemplary view of an organic electric device according to an embodiment of the present invention.
  • the organic electric device 100 includes a first electrode 120, a second electrode 180, a first electrode 110, and a second electrode 180 formed on a substrate 110.
  • the first electrode 120 may be an anode (anode)
  • the second electrode 180 may be a cathode (cathode)
  • the first electrode may be a cathode and the second electrode may be an anode.
  • the organic layer may include a hole injection layer 130, a hole transport layer 140, a light emitting layer 150, an electron transport layer 160, and an electron injection layer 170 on the first electrode 120 in sequence. At this time, the remaining layers except for the light emitting layer 150 may not be formed.
  • the hole blocking layer, the electron blocking layer, the light emitting auxiliary layer 151, the buffer layer 141 may be further included, and the electron transport layer 160 may serve as the hole blocking layer.
  • the organic electric device according to the present invention may further include a protective layer or a light efficiency improving layer (Capping layer) formed on one surface of the at least one surface of the first electrode and the second electrode opposite to the organic material layer.
  • a protective layer or a light efficiency improving layer Capping layer
  • the compound according to the present invention applied to the organic material layer of the hole injection layer 130, the hole transport layer 140, the electron transport layer 160, the electron injection layer 170, the host of the dopant or light efficiency improvement layer of the light emitting layer 150 It may be used as a material.
  • the compound of the present invention may be used as the light emitting layer 150, hole transport layer 140 and / or light emitting auxiliary layer 151.
  • a light emitting auxiliary layer between the hole transport layer and the light emitting layer, and according to each of the light emitting layers R, G, and B, It is time to develop different light emitting auxiliary layers. Meanwhile, in the case of the light emitting auxiliary layer, it is difficult to infer the characteristics of the organic material layer used even if a similar core is used, since the correlation between the hole transport layer and the light emitting layer (host) must be understood.
  • a light emitting layer or an auxiliary light emitting layer using a compound represented by the formula (1) by optimizing the energy level (level) and T1 value between each organic material layer, the intrinsic properties (mobility, interface characteristics, etc.) of the organic material
  • the life and efficiency of the electric device can be improved at the same time.
  • the organic electroluminescent device may be manufactured using a PVD method.
  • the anode 120 is formed by depositing a metal or a conductive metal oxide or an alloy thereof on a substrate, and the hole injection layer 130, the hole transport layer 140, the light emitting layer 150, and the electron transport layer are formed thereon.
  • the organic material layer including the 160 and the electron injection layer 170 it can be prepared by depositing a material that can be used as the cathode 180 thereon.
  • the organic material layer is a solution or solvent process (e.g., spin coating process, nozzle printing process, inkjet printing process, slot coating process, dip coating process, roll-to-roll process, doctor blading) using various polymer materials. It can be produced in fewer layers by methods such as ding process, screen printing process, or thermal transfer method. Since the organic material layer according to the present invention may be formed in various ways, the scope of the present invention is not limited by the forming method.
  • the organic electric element according to the present invention may be a top emission type, a bottom emission type or a double-sided emission type depending on the material used.
  • WOLED White Organic Light Emitting Device
  • Various structures for white organic light emitting devices mainly used as backlight devices have been proposed and patented. Representatively, a side-by-side method in which R (Red), G (Green), and B (Blue) light emitting parts are mutually planarized, and a stacking method in which R, G, and B light emitting layers are stacked up and down. And a color conversion material (CCM) method using photo-luminescence of an inorganic phosphor by using electroluminescence by a blue (B) organic light emitting layer and light therefrom. May also be applied to these WOLEDs.
  • CCM color conversion material
  • the organic electroluminescent device according to the present invention may be one of an organic electroluminescent device (OLED), an organic solar cell, an organic photoconductor (OPC), an organic transistor (organic TFT), a monochromatic or white illumination device.
  • OLED organic electroluminescent device
  • OPC organic photoconductor
  • organic TFT organic transistor
  • Another embodiment of the present invention may include a display device including the organic electric element of the present invention described above, and an electronic device including a control unit for controlling the display device.
  • the electronic device may be a current or future wired or wireless communication terminal, and includes all electronic devices such as a mobile communication terminal such as a mobile phone, a PDA, an electronic dictionary, a PMP, a remote controller, a navigation device, a game machine, various TVs, and various computers.
  • the compound according to one aspect of the present invention is represented by the following formula (1).
  • Ar 1 to Ar 4 are i) independently of each other a C 6 -C 60 aryl group; Fluorenyl group; C 2 -C 60 heterocyclic group including at least one heteroatom selected from the group consisting of O, N, S, Si and P; A fused ring group of an aliphatic ring of C 3 -C 60 and an aromatic ring of C 6 -C 60 ; An alkyl group of C 1 -C 50 ; Alkenyl groups of C 2 -C 20 ; An alkynyl group of C 2 -C 20 ; An alkoxyl group of C 1 -C 30 ; C 6 -C 30 aryloxy group; And -L'-N (R ') (R "); or ii) Ar 1 and Ar 2 may be bonded to each other to form a ring.
  • Ar 1 to Ar 4 are phenyl , Biphenyl, naphthyl, fluorene, pyridine, pyrimidine, carbazole
  • a and d are each independently an integer from 0 to 4
  • b and c are each independently an integer from 0 to 3.
  • R 1 to R 4 are i) independently of each other deuterium; halogen; C 6 -C 60 aryl group; Fluorenyl group; C 2 -C 60 heterocyclic group including at least one heteroatom selected from the group consisting of O, N, S, Si and P; A fused ring group of an aliphatic ring of C 3 -C 60 and an aromatic ring of C 6 -C 60 ; An alkyl group of C 1 -C 50 ; Alkenyl groups of C 2 -C 20 ; An alkynyl group of C 2 -C 20 ; An alkoxyl group of C 1 -C 30 ; C 6 -C 30 aryloxy group; And -L'-N (R ') (R "); or ii) adjacent groups may combine with each other to form a ring.
  • the ring refers to a fused ring composed of an aliphatic ring having 3 to 60 carbon atoms, an aromatic ring having 6 to 60 carbon atoms or a hetero ring having 2 to 60 carbon atoms, or a combination thereof, and includes a saturated or unsaturated ring.
  • L ' is a single bond; C 6 -C 60 arylene group; Fluorenylene groups; A fused ring group of an aliphatic ring of C 3 -C 60 and an aromatic ring of C 6 -C 60 ; And a C 2 -C 60 heterocyclic group including at least one heteroatom selected from the group consisting of O, N, S, Si, and P.
  • R ′ and R ′′ are each independently C 6 -C 60 aryl group; Fluorenyl group; C 3 -C 60 aliphatic ring and C 6 -C 60 aromatic ring group; and O, N, It is selected from the group consisting of; C 2 -C 60 heterocyclic group containing at least one heteroatom selected from the group consisting of S, Si and P.
  • Chemical Formula 1 may be represented by the following Chemical Formula 2 or Chemical Formula 3.
  • Ar 1 to Ar 4 , R 1 to R 4 , a, b, c and d are defined the same as defined in the formula (1).
  • the compound represented by Formula 1 to Formula 3 may be any one of the following compounds.
  • the present invention provides a compound for an organic electric device represented by Chemical Formula 1.
  • the present invention provides an organic electric device containing the compound represented by the formula (1).
  • the organic electric element includes a first electrode; Second electrode; And an organic material layer disposed between the first electrode and the second electrode.
  • the organic material layer may include a compound represented by Chemical Formula 1, and Chemical Formula 1 may include a hole injection layer, a hole transport layer, and an emission auxiliary layer of the organic material layer. Or it may be contained in at least one layer of the light emitting layer. That is, the compound represented by Formula 1 may be used as a material of a hole injection layer, a hole transport layer, a light emitting auxiliary layer or a light emitting layer.
  • an organic electroluminescent device comprising one of the compounds represented by the formula (2) or (3) in the organic material layer
  • the present invention is an organic electroluminescent device comprising a compound represented by the individual formula in the organic material layer To provide.
  • the present invention provides a light efficiency improving layer formed on at least one side of the one side of the first electrode opposite to the organic material layer or one side of the second electrode opposite to the organic material layer. It provides an organic electric element further comprising.
  • Compound (Final Product) according to the present invention is prepared by reacting Sub 1 and Sub 2 as shown in Scheme 1, but is not limited thereto.
  • Sub 1 of Scheme 1 may be synthesized by the reaction route of Scheme 2, but is not limited thereto.
  • Sub 1-3 (1 equiv) was dissolved in anhydrous Ether, the reaction temperature was lowered to -78 ° C, n-BuLi (2.5M in hexane) (1.1 equiv) was slowly added dropwise, and the reaction was stirred for 30 minutes. I was. Then the temperature of the reaction was lowered to -78 °C and Triisopropylborate (1.5 equiv) was added dropwise. After stirring at room temperature, dilute with water and add 2N HCl. After the reaction was completed, the mixture was extracted with ethyl acetate and water, the organic layer was dried over MgSO 4 and concentrated, and the resulting organic substance was purified by silicagel column and recrystallized to obtain Sub 1-4.
  • Sub 1-4 (1 equivalent) was added to the round bottom flask, Sub 1-5 (1 equivalent), Pd (PPh 3 ) 4 (0.03 equivalent), NaOH (3 equivalent), THF (3 mL / 1 mmol), water ( 1.5mL / 1mmol). Thereafter, the mixture is heated to reflux at 80 ° C to 90 ° C. When the reaction is complete, distilled water is diluted at room temperature and extracted with methylene chloride and water. The organic layer was dried over MgSO 4 , concentrated, and the resulting compound was subjected to silicagel column and recrystallization to obtain Sub 1-6.
  • Sub 1-1-1 (4.9g, 20mmol), Sub 1-2-1 (4.1g, 20mmol), Pd 2 (dba) 3 (0.9g, 1mmol), PPh 3 (0.5g, 2mmol) ), NaO t -Bu (5.8 g, 60 mmol) and toluene (210 mL) were added and the reaction proceeded at 100 ° C. After the reaction was completed, the mixture was extracted with ether and water, the organic layer was dried over MgSO 4 and concentrated, and the resulting organic material was purified by silicagel column and recrystallization to obtain 5.4g (1-3%) of Sub 1-3-1.
  • Sub 1-3-1 (6.4 g, 20 mmol) is dissolved in anhydrous Ether, the temperature of the reactant is lowered to -78 ° C, and n-BuLi (2.5 M in hexane) (1.4 g, 22 mmol) is slowly added dropwise. The reaction was stirred for 30 minutes. Then the temperature of the reaction was lowered to -78 °C and Triisopropyl borate (5.6g, 30mmol) was added dropwise. After stirring at room temperature, dilute with water and add 2N HCl.
  • Sub 1-4-1 (5.7 g, 20 mmol) was added to the round bottom flask, Sub 1-5-1 (6.3 g, 20 mmol), Pd (PPh 3 ) 4 (0.7 g, 0.6 mmol), NaOH (2.4 g) , 60 mmol), THF (60 mL), water (30 mL). Thereafter, the mixture is heated to reflux at 80 ° C to 90 ° C. When the reaction is complete, distilled water is diluted at room temperature and extracted with methylene chloride and water. The organic layer was dried over MgSO 4 , concentrated, and the resulting compound was purified by silicagel column and recrystallized to obtain 6.8 g of Sub 1-6-1 (yield: 71%).
  • Sub 1-6-1 (9.5g, 20mmol) was added to the round bottom flask, Sub 1-7-1 (5.7g, 20mmol), Pd (PPh 3 ) 4 (0.7g, 0.6mmol), NaOH (2.4g , 60 mmol), THF (60 mL), water (30 mL). Thereafter, the mixture is heated to reflux at 80 ° C to 90 ° C. When the reaction is complete, distilled water is diluted at room temperature and extracted with methylene chloride and water. The organic layer was dried over MgSO 4 , concentrated, and the resulting compound was purified by silicagel column and recrystallized to obtain 8.7 g (Yield: 68%) of Sub 1 (1).
  • Sub 1-6-1 (9.5g, 20mmol) was added to the round bottom flask, Sub 1-7-2 (7.9g, 20mmol), Pd (PPh 3 ) 4 (0.7g, 0.6mmol), NaOH (2.4g) , 60 mmol), THF (60 mL), water (30 mL). Thereafter, the mixture is heated to reflux at 80 ° C to 90 ° C. When the reaction is complete, distilled water is diluted at room temperature and extracted with methylene chloride and water. The organic layer was dried over MgSO 4 , concentrated, and the resulting compound was recrystallized from a silicagel column to obtain 9.8 g (yield: 66%) of Sub 1 (7).
  • Sub 1-6-1 (9.5g, 20mmol) was added to the round bottom flask, Sub 1-7-3 (6.7g, 20mmol), Pd (PPh 3 ) 4 (0.7g, 0.6mmol), NaOH (2.4g) , 60 mmol), THF (60 mL), water (30 mL). Thereafter, the mixture is heated to reflux at 80 ° C to 90 ° C. When the reaction is complete, distilled water is diluted at room temperature and extracted with methylene chloride and water. The organic layer was dried over MgSO 4 , concentrated, and the resulting compound was purified by silicagel column and recrystallized to obtain 9.0 g (Yield: 65%) of Sub 1 (10).
  • Sub 2 of Scheme 1 may be synthesized by the reaction route of Scheme 3, but is not limited thereto.
  • An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a hole transport layer material.
  • -phenylbenzene-1,4-diamine hereinafter abbreviated as "2-TNATA” was vacuum deposited to a thickness of 60 nm to form a hole injection layer, and then the compound 1-1 of the present invention was 60 nm thick on the hole injection layer. Vacuum deposition to form a hole transport layer.
  • CBP 4,4'-N, N'-dicarbazole-biphenyl
  • Ir (ppy) 3 tris (2-phenylpyridine) -iridium
  • BAlq (1,1'bisphenyl) -4-oleito) bis (2-methyl-8-quinoline oleito) aluminum
  • a blocking layer was formed, and tris (8-quinolinol) aluminum (hereinafter abbreviated as "Alq 3 ”) was vacuum deposited to a thickness of 40 nm on the hole blocking layer to form an electron transport layer. Thereafter, LiF, an alkali metal halide, was deposited to a thickness of 0.2 nm to form an electron injection layer, and then an Al was deposited to a thickness of 150 nm to form a cathode, thereby manufacturing an organic electroluminescent device.
  • Alq 3 tris (8-quinolinol) aluminum
  • An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound A was used instead of Compound 1-1 of the present invention as a hole transport layer material.
  • An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound B was used instead of Compound 1-1 of the present invention as a hole transport layer material.
  • An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound C was used instead of Compound 1-1 of the present invention as a hole transport layer material.
  • Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared by Examples 1 to 14 and Comparative Examples 1 to 3 of the present invention The T95 lifetime was measured using a life measurement instrument manufactured by McScience Inc. at a luminance of 5000 cd / m 2. The measurement results are shown in Table 4 below.
  • the organic electroluminescent device using the compound of the present invention as the material of the hole transport layer compared to the organic electroluminescent device using the comparative compounds A to C as the material of the hole transport layer, the driving voltage, luminous efficiency and The service life is significantly improved.
  • Comparative Compound A which is NPB
  • Comparative Compound B in which one carbazole is connected
  • Comparative Device C in which two carbazoles are connected
  • a device using the compound of the present invention as the hole transport layer material
  • the results were excellent in terms of driving voltage, efficiency and lifetime.
  • two carbazoles are connected via the linker at positions 2, 3, or 2 and 2, respectively, compared to a device using the comparative compound C as the hole transport layer material, in which two carbazoles are connected via the linking group at the 3rd position, respectively.
  • the device using the compound of the present invention as a material for the hole transport layer has a lower driving voltage with similar efficiency and lifetime. This suggests that the properties of the compounds vary significantly depending on the number of linkages, the linkage positions, or the types of other substituents of the carbazole, and that the properties of the devices to which these compounds are applied may also vary significantly.
  • An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a light emitting auxiliary layer material.
  • a hole injection layer is formed by vacuum depositing 2-TNATA with a thickness of 60 nm on an ITO layer (anode) formed on an organic substrate, and then 4,4-bis [N- (1-naphthyl) on the hole injection layer. ) -N-phenylamino] biphenyl (abbreviated as "NPD”) was vacuum deposited to a thickness of 60 nm to form a hole transport layer.
  • compound 1-1 of the present invention was vacuum-deposited on the hole transport layer to form a light emitting auxiliary layer by vacuum deposition at a thickness of 20 nm, and CBP as a host on the light emitting auxiliary layer, and bis- (1-phenylisoquinolyl) iridium (III) Doped with acetylacetonate (hereinafter abbreviated as "(piq) 2 Ir (acac)”) as a dopant in a weight ratio of 95: 5 to form a light emitting layer by vacuum deposition to a thickness of 30nm.
  • acetylacetonate hereinafter abbreviated as "(piq) 2 Ir (acac)
  • a hole blocking layer was formed by vacuum depositing BAlq to a thickness of 10 nm on the light emitting layer, and an electron transport layer was formed by vacuum depositing Alq 3 to a thickness of 40 nm on the hole blocking layer.
  • LiF an alkali metal halide
  • Al was deposited to a thickness of 150 nm to form a cathode, thereby manufacturing an organic electroluminescent device.
  • An organic electroluminescent device was manufactured in the same manner as in Example 15, except that an emission auxiliary layer was not formed.
  • An organic electroluminescent device was manufactured in the same manner as in Example 15, except that Comparative Compound A was used instead of Compound 1-1 of the present invention.
  • An organic electroluminescent device was manufactured in the same manner as in Example 15, except that Comparative Compound B was used instead of Compound 1-1 of the present invention.
  • An organic electroluminescent device was manufactured in the same manner as in Example 15, except that Comparative Compound C was used instead of Compound 1-1 of the present invention.
  • Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared in Examples 15 to 150 and Comparative Examples 4 to 7 of the present invention The T95 lifetime was measured using a lifespan measuring instrument manufactured by McScience Inc. at 2500 cd / m 2 reference luminance. The measurement results are shown in Table 5 below.
  • An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a light emitting auxiliary layer material.
  • a hole injection layer was formed by vacuum depositing 2-TNATA with a thickness of 60 nm on an ITO layer (anode) formed on an organic substrate, and then a NPD was vacuum deposited with a thickness of 60 nm on the hole injection layer to form a hole transport layer.
  • Compound 1-1 of the present invention was vacuum-deposited on the hole transport layer to form a light emitting auxiliary layer by vacuum deposition at a thickness of 20 nm, and CBP was used as a host and Ir (ppy) 3 was used as a dopant on the light emitting auxiliary layer.
  • a hole blocking layer was formed by vacuum depositing BAlq to a thickness of 10 nm on the light emitting layer, and an electron transport layer was formed by vacuum depositing Alq 3 to a thickness of 40 nm on the hole blocking layer.
  • LiF an alkali metal halide
  • Al was deposited to a thickness of 150 nm to form a cathode, thereby manufacturing an organic electroluminescent device.
  • Example 151 Except for using the compound 1-2-1 of the present invention compounds 1-2-1 to 68, 2-1 to 2-68 shown in Table 6 instead of the compound 1-1 of the present invention as a light emitting auxiliary layer material and the same as in Example 151 An organic electroluminescent device was manufactured by the method.
  • An organic electroluminescent device was manufactured in the same manner as in Example 151, except that an emission auxiliary layer was not formed.
  • An organic electroluminescent device was manufactured in the same manner as in Example 151, except that Comparative Compound A was used instead of Compound 1-1 of the present invention as a light emitting auxiliary layer material.
  • An organic electroluminescent device was manufactured in the same manner as in Example 151, except that Comparative Compound B was used instead of Compound 1-1 of the present invention as a light emitting auxiliary layer material.
  • An organic electroluminescent device was manufactured in the same manner as in Example 151, except that Comparative Compound C was used instead of Compound 1-1 of the present invention as a light emitting auxiliary layer material.
  • Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared in Examples 151 to 286 and Comparative Examples 8 to 11 of the present invention The T95 lifetime was measured using a life measurement instrument manufactured by McScience Inc. at a luminance of 5000 cd / m 2. The measurement results are shown in Table 6 below.
  • Example 287 Blue organic electroluminescent device (light emitting auxiliary layer)
  • An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a light emitting auxiliary layer material.
  • a hole injection layer was formed by vacuum depositing 2-TNATA with a thickness of 60 nm on an ITO layer (anode) formed on an organic substrate, and then a NPD was vacuum deposited with a thickness of 60 nm on the hole injection layer to form a hole transport layer.
  • compound 1-1 of the present invention was vacuum-deposited on the hole transport layer to form a light emitting auxiliary layer by vacuum deposition at a thickness of 20 nm, and 9,10-di (naphthalen-2-yl) anthracene was used as a host on the light emitting auxiliary layer.
  • BD-052X manufactured by Idemitsukosan as a dopant
  • BD-052X was doped at a weight ratio of 93: 7, and was vacuum deposited to a thickness of 30 nm to form a light emitting layer.
  • a hole blocking layer was formed by vacuum depositing BAlq to a thickness of 10 nm on the light emitting layer, and an electron transport layer was formed by vacuum depositing Alq 3 to a thickness of 40 nm on the hole blocking layer.
  • LiF an alkali metal halide
  • Example 287 Same as Example 287 except for the use of the compounds 1-2-1 to 68, 2-1 to 2-68 of the present invention shown in Table 7 instead of the compound 1-1 of the present invention as a light emitting auxiliary layer material
  • An organic electroluminescent device was manufactured by the method.
  • An organic electroluminescent device was manufactured in the same manner as in Example 287, except that an emission auxiliary layer was not formed.
  • An organic electroluminescent device was manufactured in the same manner as in Example 287, except that Comparative Compound A was used instead of Compound 1-1 of the present invention as a light emitting auxiliary layer material.
  • An organic electroluminescent device was manufactured in the same manner as in Example 287, except that Comparative Compound B was used instead of Compound 1-1 of the present invention.
  • An organic electroluminescent device was manufactured in the same manner as in Example 287, except that Comparative Compound C was used instead of Compound 1-1 of the present invention as a light emitting auxiliary layer material.
  • Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared in Examples 287 to 422 and Comparative Examples 12 to 15 of the present invention The T95 lifetime was measured using a life measurement instrument manufactured by McScience Inc. at a luminance of 500 cd / m 2. The measurement results are shown in Table 7 below.
  • the organic electroluminescent device using the compound of the present invention as a material of the light emitting auxiliary layer is an organic electroluminescent device that does not form a light emitting auxiliary layer and Comparative Compounds A to C
  • the driving voltage, luminous efficiency and lifespan are remarkably improved as compared to the organic electroluminescent device using the as an auxiliary light emitting layer.

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  • Chemical & Material Sciences (AREA)
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Abstract

L'invention porte sur un composé représenté par la formule chimique 1. De plus, l'invention porte sur un élément électrique organique comprenant une première électrode, une seconde électrode et une couche de matériau organique entre la première électrode et la seconde électrode, la couche de matériau organique comprenant un composé représenté par la formule chimique 1. Si le composé représenté par la formule chimique 1 est inclus dans la couche de matériau organique, l'efficience lumineuse, la stabilité, la durée de vie, etc. de l'élément électrique organique peuvent être améliorées.
PCT/KR2014/010825 2013-11-28 2014-11-12 Composé pour élément électrique organique, élément électrique organique l'utilisant et dispositif électronique correspondant WO2015080404A1 (fr)

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US20160365517A1 (en) * 2014-02-27 2016-12-15 Duk San Neolux Co., Ltd. Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof
CN106674210A (zh) * 2016-12-23 2017-05-17 江苏三月光电科技有限公司 一种以均苯为核心的有机化合物及其在有机电致发光器件上的应用
CN107056807A (zh) * 2016-04-25 2017-08-18 中节能万润股份有限公司 一种以均苯为核心的化合物及其在有机电致发光器件中的应用
EP3392246A4 (fr) * 2015-12-08 2019-10-30 Heesung Material Ltd. Composé hétérocyclique et dispositif électroluminescent organique utilisant ce composé
CN112110895A (zh) * 2019-06-19 2020-12-22 北京鼎材科技有限公司 一种化合物及其应用以及采用该化合物的有机电致发光器件
CN112479978A (zh) * 2019-09-11 2021-03-12 江苏三月光电科技有限公司 一种以咔唑衍生物为核心的有机化合物及其应用
EP4089073A1 (fr) * 2021-05-12 2022-11-16 Samsung Display Co., Ltd. Dispositif luminescent et composé contenant de l'azote pour un dispositif de luminescence

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US20160365517A1 (en) * 2014-02-27 2016-12-15 Duk San Neolux Co., Ltd. Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof
US11469379B2 (en) * 2014-02-27 2022-10-11 Duk San Neolux Co., Ltd. Compound for organic electronic element, organic electronic element using the same, and electronic device thereof
US10396291B2 (en) * 2014-02-27 2019-08-27 Duk San Neolux Co., Ltd. Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof
US10516116B2 (en) 2014-08-05 2019-12-24 Samsung Electronics Co., Ltd. Organic compound, and organic thin film and electronic device
US20160043329A1 (en) * 2014-08-05 2016-02-11 Samsung Electronics Co., Ltd. Organic compound, and organic thin film and electronic device
US9941478B2 (en) * 2014-08-05 2018-04-10 Samsung Electronic Co., Ltd. Organic compound, and organic thin film and electronic device
WO2016064227A1 (fr) * 2014-10-23 2016-04-28 Rohm And Haas Electronic Materials Korea Ltd. Nouveaux composés électroluminescents organiques et dispositif électroluminescent organique les comprenant
US10633583B2 (en) 2014-10-23 2020-04-28 Rohm And Haas Electronic Materials Korea Ltd. Organic electroluminescent compounds and an organic electroluminescent device comprising the same
EP3392246A4 (fr) * 2015-12-08 2019-10-30 Heesung Material Ltd. Composé hétérocyclique et dispositif électroluminescent organique utilisant ce composé
CN107056807A (zh) * 2016-04-25 2017-08-18 中节能万润股份有限公司 一种以均苯为核心的化合物及其在有机电致发光器件中的应用
WO2018113538A1 (fr) * 2016-12-23 2018-06-28 江苏三月光电科技有限公司 Composé organique avec homobenzène en tant que noyau et son utilisation dans un dispositif à électroluminescence organique
CN106674210A (zh) * 2016-12-23 2017-05-17 江苏三月光电科技有限公司 一种以均苯为核心的有机化合物及其在有机电致发光器件上的应用
CN112110895A (zh) * 2019-06-19 2020-12-22 北京鼎材科技有限公司 一种化合物及其应用以及采用该化合物的有机电致发光器件
CN112110895B (zh) * 2019-06-19 2024-05-21 北京鼎材科技有限公司 一种化合物及其应用以及采用该化合物的有机电致发光器件
CN112479978A (zh) * 2019-09-11 2021-03-12 江苏三月光电科技有限公司 一种以咔唑衍生物为核心的有机化合物及其应用
CN112479978B (zh) * 2019-09-11 2023-11-28 江苏三月科技股份有限公司 一种以咔唑衍生物为核心的有机化合物及其应用
EP4089073A1 (fr) * 2021-05-12 2022-11-16 Samsung Display Co., Ltd. Dispositif luminescent et composé contenant de l'azote pour un dispositif de luminescence

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