Patents by Inventor Natalia Chebotareva
Natalia Chebotareva has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120168731Abstract: The present invention relates to electroluminescent devices, comprising a compound of the formula (I) as a component of the transporting/injecting and/or electron blocking layer. The compounds of formula (I) may function alone, or in combination with dopants to provide improved efficiency, driving voltage and/or lifetime of electroluminescent devices.Type: ApplicationFiled: June 11, 2010Publication date: July 5, 2012Applicant: BASF SEInventors: Christian Schildknecht, Christian Lennartz, Soichi Watanabe, Gerhard Waganblast, Peter Murer, Thomas Schäfer, Natalia Chebotareva, Andrea Ricci, Kristina Bardon
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Patent number: 8193528Abstract: The present invention relates to electronic devices, especially electroluminescent devices, comprising azapyrenes of formula (I), or formula (III), wherein Y1, Y2, Y3, Y4, X1, X2 and X3 are independently each other N, or CR4, with the proviso that at least one of the groups X1, X2 and X3 is a group CR4, R1 is hydrogen, F, —SiR100R101R102, or an organic substituent, R4 is hydrogen, F, —SiR100R101R102, or an organic substituent, or any of the substituents R1, R1? and R4, which are adjacent to each other, together form an aromatic, or heteroaromatic ring, or ring system, which can optionally be substituted, m is an integer of 1 to 6, and R100, R101 and R102 are independently of each other a C1-C8alkyl group, a C6-C24aryl group, or a C7-C12aralkyl group, which may optionally be substituted, and Q is a linking group; with the proviso that in the compound of formula (III) at least one of the substituents R1, or R4 is a group Q; especially as host for phosphorescent emitters, electron transporting materials, or emitType: GrantFiled: June 23, 2009Date of Patent: June 5, 2012Assignee: BASF SEInventors: Thomas Schäfer, Thomas Eichenberger, Kristina Bardon, Andrea Ricci, Natalia Chebotareva
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Publication number: 20120097935Abstract: The present invention relates to novel compounds of the formula (I) wherein R1 and R1? independently of each other are H or a substituent, halogen or SiR6R4R5; R2 and R2? may be the same or different and are selected from C1-C25alkyl, C3-C12-cycloalkyl, C2-C25alkenyl, C2-C25alkynyl, C4-C25aryl, C5-C25alkylaryl or C5-C25aralkyl, each of which is unsubstituted or substituted, and under conditions as defined in claim 1, R2 and/or R2? may also be halogen or hydrogen; X is a divalent linking group selected from formula (Ia) and formula (Ib); Y and Y? independently are selected from formula (Ic), formula (Id), formula (Ie), formula (If), formula (Ig); n and p independently range from 0 to 6; where further symbols are as defined in claim 1, and to corresponding oligomers and (co)polymers. The compounds according to the invention are useful as semiconductors and have excellent solubility in organic solvents and excellent film-forming properties.Type: ApplicationFiled: May 21, 2010Publication date: April 26, 2012Applicant: BASF SEInventors: Hans Jürg Kirner, Natalia Chebotareva, Olivier Frédéric Aebischer
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Publication number: 20120095236Abstract: The present invention relates to compounds of the formula (I) wherein the substituents are as defined in claim 1, and their use as organic semiconductor in organic devices, like diodes, organic field effect transistors and/or solar cells. The compounds of the formula I have excellent solubility in organic solvents. High efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when said compounds are used in semiconductor devices or organic photovoltaic (PV) devices (solar cells).Type: ApplicationFiled: March 30, 2010Publication date: April 19, 2012Applicant: BASF SEInventors: Pascal Hayoz, Olivier Frederic Aebischer, Mathias Dueggeli, Mathieu G.R. Turbiez, Marta Fonrodona Turon, Natalia Chebotareva
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Publication number: 20120071617Abstract: The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula A polymer, comprising (repeating) unit(s) of the formula (1) and (2), wherein A is a repeating unit of the formula (I), and —COM1- is a repeating unit of formula (3), or (4), and their use as organic semiconductor in organic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.Type: ApplicationFiled: May 18, 2010Publication date: March 22, 2012Applicant: BASF SEInventors: Mathias Dueggeli, Olivier Frederic Aebischer, Pascal Hayoz, Marta Fonrodona Turon, Mathieu G.R. Turbiez, Jean-Charles Flores, Hans Juerg Kirner, Peter Murer, Natalia Chebotareva, Thomas Schaefer
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Patent number: 8138303Abstract: The present invention relates to novel polymers comprising a repeating unit of the formula (I) and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high stability of the emission color can be observed, if the polymers according to the invention are used in organic light emitting diodes (OLEDs).Type: GrantFiled: January 31, 2007Date of Patent: March 20, 2012Assignee: BASF SEInventors: Natalia Chebotareva, Roger Prétôt, Paul Adriaan Van der Schaaf, Thomas Schäfer, Beat Schmidhalter, Peter Murer
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Publication number: 20110315967Abstract: The present invention provides a semiconductor device, especially an organic field effect transistor, comprising a layer comprising a polymer comprising repeating units having a diketopyrrolopyrrole skeleton (DPP polymer) and an acceptor compound having an electron affinity in vacuum of 4.6 eV, or more. The doping of the DPP polymer with the acceptor compound leads to an organic field effect transistor with improved hole mobility, current on/off ratio and controllable threshold shift.Type: ApplicationFiled: June 22, 2011Publication date: December 29, 2011Applicant: BASF SEInventors: Beat Schmidhalter, Natalia Chebotareva, Pascal Hayoz
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Publication number: 20110284826Abstract: The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula or a polymer of formula and their use as organic semiconductor in organic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.Type: ApplicationFiled: May 17, 2011Publication date: November 24, 2011Applicant: BASF SEInventors: Pascal Hayoz, Mathias Düggeli, Natalia Chebotareva, Olivier Frédéric Aebischer
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Publication number: 20110240973Abstract: Disclosed is an organic semiconductor material, layer or component, comprising a copolymer of the formula wherein v and w each generally are from the range 4 to 1000; A is a benzodithiophene repeating unit of the formula II or III and COM is selected from certain arylene-type repeating units, and combinations thereof, with further symbols as defined in the claims. The present copolymers, as well as composites thereof, may be used as semiconductor in the preparation of electronic devices such as photodiodes, organic field effect transistors and especially organic photovoltaic devices such as solar cells.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Applicant: BASF SEInventors: Mathias Dueggeli, Ralph Reiger, Klaus Muellen, Natalia Chebotareva, Dirk Beckmann
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Publication number: 20110186821Abstract: The present invention relates to electronic devices, especially electroluminescent devices, comprising azapyrenes of formula (I), or formula (III), wherein Y1, Y2, Y3, Y4, X1, X2 and X3 are independently each other N, or CR4, with the proviso that at least one of the groups X1, X2 and X3 is a group CR4, R1 is hydrogen, F, —SiR100R101R102, or an organic substituent, R4 is hydrogen, F, —SiR100R101R102, or an organic substituent, or any of the substituents R1, R1? and R4, which are adjacent to each other, together form an aromatic, or heteroaromatic ring, or ring system, which can optionally be substituted, m is an integer of 1 to 6, and R100, R101 and R102 are independently of each other a C1-C8alkyl group, a C6-C24aryl group, or a C7-C12aralkyl group, which may optionally be substituted, and Q is a linking group; with the proviso that in the compound of formula (III) at least one of the substituents R1, or R4 is a group Q; especially as host for phosphorescent emitters, electron transporting materials, or emitType: ApplicationFiled: June 23, 2009Publication date: August 4, 2011Applicant: BASF SEInventors: Thomas Schäfer, Thomas Eichenberger, Kristina Bardon, Andrea Ricci, Natalia Chebotareva
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Publication number: 20110086454Abstract: Disclosed are electroluminescent materials comprising a homopolymer based on recurring structural units of the formula (I) wherein R9, R9? R9?, R11, R13? R14, R11?, R13?, R14? independently are H or an organic substituent, where at least one of R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? comprises a group R10 of the formula —(Sp)x10-[PG?]< wherein Sp is a divalent organic spacer, PG? is a group derived from a polymerisable group, and x10 is 0 or 1, with substituents and spacer as defined in claim 1. Further disclosed are some novel polymers of this class as well as monomers for their preparation. The homopolymers are advantageously used as a host material in devices further comprising a luminiscent component, which is usually selected from phosphorescent metal complexes and fluorescent dopants.Type: ApplicationFiled: May 19, 2009Publication date: April 14, 2011Applicant: BASF SEInventors: Natalia Chebotareva, Roger Pretot, Paul Adriaan Van Der Schaaf, Annemarie Wolleb, Heinz Wolleb
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Publication number: 20100249349Abstract: The present invention relates to novel polymers comprising a repeating unit of the formula (I) and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high stability of the emission color can be observed, if the polymers according to the invention are used in organic light emitting diodes (OLEDs).Type: ApplicationFiled: January 31, 2007Publication date: September 30, 2010Inventors: Natalia Chebotareva, Roger Prétôt, Paul Adriaan Van Der Schaaf, Thomas Schäfer, Beat Schmidhalter, Peter Murer