Basf Se Corporation

Ciba Specialty Chemicals Corporation

Udc Ireland Limited

Ciba Corporation

Junichi Tanabe

Masaki Ohwa

Hisatoshi Kura

Hidetaka Oka

Christian Lennartz

Kazuhiko Kunimoto

Akira Matsumoto

Hiroshi Yamamoto

Jean-Luc Birbaum

Gerhard Wagenblast

Christian Schildknecht

Soichi Watanabe

Nicolle Langer

Kurt Dietliker

Oliver Molt

Korinna Dormann

Evelyn Fuchs

Hitoshi Yamato

Toshikage Asakura

Ryuichi Takahashi

Mamiko Takesue

Shinji Nakamichi

Helmut Reichelt

Robert Send

Heinz Wolleb

Clemens Auschra

Peter Erk

Thomas Gessner

Christian Eickhoff

Flavio Luiz Benedito

Frank Oliver Heinrich Pirrung

Yuichi Nishimae

Rüdiger Sens

Wolfgang Peter

Thomas Geβner

Thomas Geßner

Preetam Ghogale

Carsten Schellenberg

Sudhakar Sundarraj

Sheeja Bahulayan

Ramachandra V Joshi

Sanjoy Lahiri

Dhaval Vashi

The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts of formula which have a sufficiently small energy gap between Sand T(&#x394;E) to enable up-conversion of the triplet exciton from Tto S. The organic light emitting elements show high electroluminescent efficiency.

Fluorescent organic light emitting elements having high efficiency

An organic light-emitting element which emits delayed fluorescence comprising specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives or 1,2,4-thiadiazole derivatives in the light-emitting layer, a light-emitting layer comprising the specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives or 1,2,4-thiadiazole derivatives, specific specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives and 1,2,4-thiadiazole derivatives and an organic light emitting element comprising the specific 1,2,4-azole derivatives as well as a light emitting layer comprising the specific 1,2,4-azole derivatives; the use of the specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives and 1,2,4-thiadiazole derivatives for electrophotographic photoreceptors, photoelectric converters, sensors, dye lasers, solar cell devices and organic light emitting elements, and the use of the specifically substituted 1,2,4-triazole derivatives, 1,2,4-oxadiazole derivatives and 1,2,4-thiadiazole derivatives for generating delayed fluorescence emission.

The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts on basis of benzotriazoles, which have a sufficiently small energy gap between Sand T(&#x394;E) to enable up-conversion of the triplet exciton from Tto S. The organic light emitting elements show high electroluminescent efficiency.

The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts on basis of phthalimide and naphthalimide materials, which have a sufficiently small energy gap between Sand T(&#x394;E) to enable up-conversion of the triplet exciton from Tto S. The organic light emitting elements show high electroluminescent efficiency.

The present invention relates to a photoactive material comprising a donor substance and an acceptor substance, wherein the donor substance comprises or consists of one or more compounds of formula (I) described herein, or the acceptor substance comprises or consists of one or more compounds of formula (I) described herein, or the donor substance comprises or consists of a first compound of formula (I) described herein and the acceptor substance comprises a second compound of formula (I) described herein with the proviso that the first and second compound are not the same, as well as to an organic solar cell comprising said photoactive material. The present invention also relates to a photoelectric conversion device comprising or consisting of two or more organic solar cells comprising said photoactive material and to compounds of formula (I) as described herein for use as donor substance or as acceptor substance in a photoactive material, Further, the present invention relates to the use of a compound of formula (III) as described herein in the synthesis of a compound of formula (I)as described herein.

Compounds with terminal heteroarylcyanovinylene groups and their use in organic solar cells

The present invention provides an organic electronic device including a first electrode, a second electrode, and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises an organic metal complex of formula and a compound of formula  The organic electronic device, especially an organic light emitting device can show superior life time, power efficiency, quantum efficiency and/or a low operating voltage.

Organic electronic devices comprising a layer of a dibenzofurane compound and a 8-hydroxypquinolinolato earth alkaline metal, or alkali metal complex

The present invention relates to an organic electronic device including a first electrode, a second electrode and a first organic layer interposed between the first electrode and the second electrode, wherein the first organic layer comprises at least one metal organic compound and at least one metal oxide. The present invention further relates to an apparatus comprising the organic electronic device according to the present invention.

Organic electronic devices comprising a layer comprising at least one metal organic compound and at least one metal oxide

The present invention relates to electroluminescent devices that comprise organic layers that contain triazole compounds of the formula (I), or formula (II). The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens.

Electroluminescent device

Disclosed are electroluminescent devices that comprise organic layers that contain dibenzofuran compounds. The compounds are suitable components of, for example, blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in, for example, mobile phones, televisions and personal computer screens.

Compounds of the formula (I), (II), and wherein R, R, R'and R&#x2032;&#x2033;for example are C-Calkyl; R, R, and Rfor example independently of one another are hydrogen or a defined substituent provided that at least one of R, Ror Ris other than hydrogen or C-Calkyl; R, R, R, R&#x2032;, R&#x2032;, R&#x2032;, R&#x2033;, R&#x2033;, R&#x2032;&#x2033;6 and R&#x2032;&#x2033;7 for example independently of one another have one of the meanings as given for R, R, and R; and Rfor example is C-Calkyl; exhibit an unexpectedly good performance in photopolymerization reactions. 

Oxime ester photoinitiators

Compounds of formula (I), (II), and (III), wherein R, R, R'and R&#x2032;&#x2033;for example are C-Calkyl, provided that at least one of R, R, R&#x2032;and R&#x2032;&#x2033;carries a specified substituent; R, R, and Rfor example independently of one another are hydrogen or a defined substituent provided that at least one of R, Ror Ris other than hydrogen or C-Calkyl; R, R, R, R&#x2032;, RV, R&#x2032;, R&#x2033;, R&#x2033;, R&#x2032;&#x2033;and R&#x2032;&#x2033;for example independently of one another have one of the meanings as given for R, R, and R; and Rfor example is C-Calkyl; exhibit an unexpectedly good performance in photopolymerization reactions. 

The invention relates to a color filter composition comprising a) a photoresist binder, b) a transparent pigment, c) optionally a solvent and/or optionally a photoinitiator or a photolatent catalyst, d) a dispersant which is a polymer or copolymer obtainable by a process comprising the steps of a1) polymerizing in a first step one or more ethylenically unsaturated monomers in the presence of at least one nitroxylether having the structural element wherein X represents a group having at least one carbon atom and is such that the free radical X derived from X is capable of initiating polymerization; or a2) polymerizing in a first step one or more ethylenically unsaturated monomers in the presence of at least one stable free nitroxyl radical and a free radical initiator; wherein at least one monomer used in the steps a1) or a2) is a C-Calkyl or hydroxy C-Calkyl ester of acrylic or methacrylic acid; and a second step b) comprising the modification of the polymer or copolymer prepared under a1) or a2) by a transesterification reaction, an amidation, hydrolysis or anhydride modification or a combination thereof, and optionally in addition by quaternization. 

Color filter composition

The present invention pertains to an electrode layer comprising a porous film made of oxide semiconductor fine particles sensitized with certain methin dyes. Moreover the present invention pertains to a photoelectric conversion device comprising said electrode layer, a dye sensitized solar cell comprising said photoelectric conversion device and to novel methin dyes.

Dye sensitised solar cell

Growing community of inventors

Amagasaki, Japan

Junichi Tanabe