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1.发明公开
公开(公告)号：EP4317134A1
公开(公告)日：2024-02-07
申请号：EP22780657.7
申请日：2022-03-25
发明人： SAKURAI Atsushi , HASHIMOTO Maki , OHKURA Yuya , TAKAHASHI Hideaki , SATO Hiroshi , ITO Toshiaki
IPC分类号： C07D209/86 , H01L51/46
摘要： Provided are a compound represented by the following Formula (1) useful as a hole transport material for a photoelectric conversion element, and a photoelectric conversion element using the compound in a hole transport layer.
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2.发明公开
公开(公告)号：EP4279481A1
公开(公告)日：2023-11-22
申请号：EP22739369.1
申请日：2022-01-11
发明人： OHKURA, Yuya , TAKAHASHI, Hideaki , SATO, Hiroshi
IPC分类号： C07C225/22 , C07C229/44 , C07C255/42 , C07D279/22 , C07D333/22 , C07D333/24 , C07D409/14 , H01L51/46 , C07D209/88 , C07D265/38 , C07D239/66
摘要： An object of the present invention is to provide a compound that is useful as a hole transport material for providing a device for converting light into electricity that is capable of extracting current with high efficiency, and a device for converting light into electricity and a solar cell that include the compound in a hole transport layer and have favorable light/electricity conversion characteristics. The present invention provides a compound represented by the general formula (1) below. In the formula, R 1 to R 20 each represent a hydrogen atom, an alkoxy group having 1 to 20 carbon atoms, or the like, and Y represents an oxygen atom or CR 21 R 22 , where R 21 and R 22 each represent a nitrile group, an acyl group having 1 to 10 carbon atoms, or the like.
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公开(公告)号：EP4257585A1
公开(公告)日：2023-10-11
申请号：EP21900661.6
申请日：2021-12-02
IPC分类号： C07D401/14 , C07D403/10 , C07D405/04 , C07D405/10 , C07D409/10 , C07D409/14 , C07D413/10 , C07D417/10 , C07D471/04 , C09K11/06 , C07D213/16 , C07D519/00 , C07D239/26 , H01L51/50 , H05B33/22
摘要： An object of the present invention is to provide a compound with a high refractive index at a wavelength in range of 450 nm to 750 nm in a capping layer to improve light extraction efficiency of an organic EL device.
The present invention was achieved by focusing on the fact that a heterocyclic compound has excellent thin film stability and durability and is able improve the refractive index by adjusting the molecular structures, and planning molecule, and an organic EL device having excellent luminous efficiency was obtained by using this compound as a material for constituting a capping layer.-
公开(公告)号：EP4243105A1
公开(公告)日：2023-09-13
申请号：EP21889127.3
申请日：2021-10-29
发明人： SURUGA Kazuyuki , KO Sang-Won , LEE Bong-Hyang , RYU Jung-Ho , YAMAMOTO Takeshi , IZUMIDA Junichi , CHA Soon-Wook , JOO Sung-Hoon , YANG Byung-Sun , KIM Ji-Hwan , SHIN Bong-Ki
摘要： The present invention provides an organic electroluminescent element which sequentially comprises at least a positive electrode, a first hole transport layer, a second hole transport layer, a blue light emitting layer, an electron transport layer and a negative electrode in this order, wherein the second hole transport layer contains an arylamine compound that is represented by general formula (1).
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公开(公告)号：EP4230615A1
公开(公告)日：2023-08-23
申请号：EP21880225.4
申请日：2021-10-15
发明人： KASE, Kouki , IZUMIDA, Junichi , HAYASHI, Shuichi
IPC分类号： C07C211/54 , H01L51/50
摘要： It is an object of the present invention to provide, as a material for a highly efficient and highly durable organic EL device, an organic compound with excellent properties including excellent hole-injecting/transporting performance, electron-blocking capability, and high stability in the form of a film. It is another object thereof to provide a highly efficient and highly durable organic EL device by using this compound. The present invention is directed to an arylamine compound represented by a general formula (1) below:
where Ar 1 and Ar 2 represent a substituted or unsubstituted aromatic hydrocarbon group or the like, Ar 3 and Ar 4 represent a substituted or unsubstituted phenyl group or the like, L represents a substituted or unsubstituted divalent aromatic hydrocarbon group or the like, Ri to R 3 represent a hydrogen atom, for example, and n is an integer of 1 to 2.-
公开(公告)号：EP4195304A1
公开(公告)日：2023-06-14
申请号：EP21853832.0
申请日：2021-08-02
发明人： HIRAYAMA, Yuta , YAMAMOTO, Takeshi , KASE, Kouki , HAYASHI, Shuichi , CHA Soon-Wook , JOO Sung-Hoon , YANG Byung-Sun , KIM Ji-Hwan
IPC分类号： H01L51/50
摘要： An objective of the present invention is to provide an organic EL device having high efficiency, low driving voltage and long lifetime by using a material for organic EL devices offering excellent hole injectability and transportability, electron blockability, stability in a thin-film state, and durability, and also by employing, in combination, the aforementioned material and various other materials for organic EL devices offering excellent hole/electron injectability and transportability, electron blockability, stability in a thin-film state, and durability, in a manner that the properties of each material can be brought out effectively. The present invention relates to an organic electroluminescence device having, between an anode and a cathode, at least a hole transport layer, a light-emitting layer, and an electron transport layer in this order from the anode side, wherein the hole transport layer contains a triarylamine compound having a specific structure.
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公开(公告)号：EP4089156A1
公开(公告)日：2022-11-16
申请号：EP20912722.4
申请日：2020-12-21
摘要： [Object]
The present invention provides an organic electroluminescent device having a capping layer comprising a material having a high absorption coefficient in the wavelength range of 400 nm to 410 nm, a high refractive index, good thin-film stability, excellent durability and lightfastness, and no absorption in the respective wavelength ranges of blue, green and red in order to prevent the light in the 400 nm to 410 nm wavelength of sunlight from being absorbed and affecting the materials inside the device and to improve the light extraction efficiency.
[Means of Realizing the Object]
Since the arylamine compound having a specific structure in the present invention is excellent in the stability and durability of the thin film, an organic EL device obtained by selecting amine compounds with high absorbance in the absorption spectrum at concentration 10 -5 mol/L at wavelengths of 400 nm to 410 nm, from amine compounds having a specific benzoazole ring structure with a high refractive index as a material of a capping layer, exhibits good characteristics.-
公开(公告)号：EP4050083A1
公开(公告)日：2022-08-31
申请号：EP20878630.1
申请日：2020-10-20
发明人： SURUGA, Kazuyuki , KASE, Kouki , YAMAMOTO, Takeshi , HAYASHI, Shuichi , CHA, Soon-wook , JOO, Sung-hoon , YANG, Byung-sun , KIM, Ji-hwan
摘要： [Object]
An object of the present invention is to provide a material for an organic EL device that is excellent in hole injection and transport abilities, electron blocking ability, thin film stability, and durability, as a material for an organic EL device with high efficiency and high durability, and also to provide an organic EL device having a high efficiency, a low driving voltage, and a long lifetime by combining the material with various materials for an organic EL device that is excellent in hole and electron injection and transport abilities, electron blocking ability, thin film stability, and durability, in such a manner that the characteristics of the materials can be effectively exhibited.
[Means of Realizing the Object]
The present inventors have focused the fact that an arylamine material having a specific structure is excellent in hole injection / transport ability, thin film stability and durability. The arylamine compound of the above can be selected as a material for the hole transport layer, holes injected from the anode side can be efficiently transported. Furthermore, various organic EL devices combining electron transport materials having a specific structure and the like were manufactured, and the characteristics of the devices were evaluated diligently.-
9.发明公开
公开(公告)号：EP4043512A1
公开(公告)日：2022-08-17
申请号：EP20873565.4
申请日：2020-10-07
发明人： TOGASHI, Kazunori , SHINODA, Mika , IZUMIDA, Junichi , MOCHIZUKI, Shunji , HIRAI, Hiroki , SAEGUSA, Yuta
摘要： It is an object of the present invention to provide a polymer organic EL element that has a low driving voltage, high light emission efficiency, and a long lifespan. The present invention provides an organic electroluminescence element having a pair of electrodes and at least one organic layer between the electrodes, wherein the organic layer is constituted by two or more high molecular weight compounds including at least high molecular weight compounds α and β, and the high molecular weight compound α has a substituted triarylamine structural unit represented by a general formula (1) below and has a weight average molecular weight of 10,000 or more and less than 1,000,000 in terms of polystyrene. For the symbols in the formula, see the Description.
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公开(公告)号：EP3819325A1
公开(公告)日：2021-05-12
申请号：EP19830414.9
申请日：2019-07-01
摘要： It is an object of the present invention to provide a high molecular weight compound that has excellent hole injection and transport performance, is capable of blocking electrons, and is highly stable as a thin film. It is another object of the present invention to provide an organic EL element that includes an organic layer (thin film) made of the above-described high molecular weight compound, wherein the organic EL element has high light emission efficiency and a long lifespan. The high molecular weight compound according to the present invention includes a repeating unit represented by a general formula (3), that is constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight of 10,000 or more and less than 1,000,000 on a polystyrene basis.
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