Sumitomo Chemical Company, Limited

Agency of Industrial Science and Technology

Hokkaido University

Kansai Technology Licensing Organization Co., Ltd.

New Energy and Industrial Technology Development Organization

Sumitomo Chemical Company, Limtied

Cambridge Display Teclmology Limited

Cambridge Display Technology Limited

Chizu Sekine

Masayoshi Minai

Koichi Fujisawa

Takayuki Higashii

Takeshi Tani

Shoji Toda

Yoshiaki Tsubata

Yukari Fujimoto

Isao Kurimoto

Makoto Kitano

Kazunori Iwakura

Satoshi Mikami

Jun Oguma

Kyoko Yamamoto

Nobuhiko Akino

Tomoya Nakatani

Kayoko Ueda

Akiko Nakazono

Tsutomu Matsumoto

Katsumi Agata

Akihiro Ono

Kyoko Endo

Masato Ueda

Satoshi Kobayashi

Naoyuki Takano

Masamitsu Ishitobi

Takanobu Noguchi

Tomoyuki Suzuki

Martin Humphries

Annette Steudel

Kiran Timothy Kamtekar

Makoto Anryu

Hidenobu Kakimoto

Ruth Pegington

Shigehiro Yamaguchi

Sophie Barbara Heidenhain

Naoto Konya

Takahiro Ueoka

Osamu Goto

Kohei Asada

Kohei Tamao

Noboru Kitamura

Yusuke Ishii

Rei Okamura

Miho Ishikawa

Eri Sakuda

Akitaka Ito

Elena Hojas Garcia

Takeo Hirokawa

Annette Regine Steudel

Taro Tsubomura

Sophie Heidenhain

Martin John Humphries

Yoshihiko Akino

This invention provides a luminescent composition comprising a polymer and at least one phosphorescent compound, characterized in that the electronic conjunction chain coefficient Zof the main repeating minimum unit of the polymer falls within the following range: 0&#x3c;Z&#x2264;2.00 (1) wherein the electronic conjunction chain coefficient Zis defined as a slope obtained by linear approximation of function T=T(1/n) by the least square method wherein nrepresents the number of conjugated electrons contained in repeating minimum units; and Trepresents, for m-mer obtained by bonding repeating minimum units, the lowest triplet excitation energy in each m-mer when the number m is varied from 1 to 3 by one by one. Here in the number of conjugated electrons, only the conjugated electrons present in the main chain of the repeating minimum units are taken into consideration, provided that, when there are a plurality of main repeating minimum units, the minimum Zis used.

Polymer compound, luminescent material, and light emitting device

A polymer compound is provided having constitutional units of formula (1) and formula (2), and a constitutional unit of formula (3) and/or (4'): wherein Arto Ar, Ar, Ar&#x2032; and Arrepresent arylene groups or the like; Arto Arrepresent aryl groups or the like; Arrepresents (2+p)-valent aromatic hydrocarbon group or the like; Arrepresents (2+n)-valent aromatic hydrocarbon group or the like; Rrepresents alkyl group or the like; L, L, Land Lrepresent alkylene groups or the like; Land Lrepresent oxygen atoms or the like; Qrepresents monovalent crosslinkable group; Q&#x2032; to Q&#x2032; represent monovalent crosslinkable groups or the like; x, y, c, nA and nD represent 0 or 1; p represents integer of 1 or greater; na and ng represent integer of 0 to 3; nb and nh represent integer of 0 to 12; and n represents integer of 1 to 4.

Polymer compound and light emitting element using same

This invention provides a luminescent composition comprising a polymer and at least one phosphorescent compound, characterized in that the electronic conjunction chain coefficient Zof the main repeating minimum unit of the polymer falls within the following range: 0&#x3c;Z&#x2266;2.00 (1) wherein the electronic conjunction chain coefficient Zis defined as a slope obtained by linear approximation of function T=T(1/n) by the least square method wherein nrepresents the number of conjugated electrons contained in repeating minimum units; and Trepresents, for m-mer obtained by bonding repeating minimum units, the lowest triplet excitation energy in each m-mer when the number m is varied from 1 to 3 by one by one. Here in the number of conjugated electrons, only the conjugated electrons present in the main chain of the repeating minimum units are taken into consideration, provided that, when there are a plurality of main repeating minimum units, the minimum Zis used.

Disclosed is an device having high light-emitting efficiency. A metal complex represented by the following formula (1).  In the formula (1), n represents an integer of 1 to 3. Land Leach independently represent the moiety of a group bonded to an iridium atom, except for coordinating atoms. When n is 3, a metal complex represented by the following formula (1-3): 

Metal complex and device using the metal complex

Disclosed is a composition containing a metal complex and an organic compound, wherein the difference between the absolute value of the energy level of the lowest unoccupied molecular orbit of said metal complex and the absolute value of the lowest unoccupied molecular orbit of said organic compound, as calculated with a computational technique, is less than 0.40 eV.

Composition containing a metal complex and organic compound, and light-emitting element using said compound

A copolymer having two or more repeating units selected from the group consisting of arylene groups, divalent heterocyclic groups and divalent aromatic amine groups wherein the copolymer has, on at least one of molecular chain ends, a monovalent heterocyclic group, a monovalent group derived from a heterocyclic group coordinated metal complex, and an aromatic end group selected from aryl groups having a formula weight of 90 or more, and the copolymer shows fluorescence in the solid state and has a polystyrene-reduced weight-average molecular weight of 10to 10.

Copolymer and polymer light emitting device using the same

A polymer compound comprising at least one repeating unit selected from the group of repeating units shown by formula (1) or formula (2),  

Polymer compound and polymer light-emitting device using the same

A polymer material comprising a composition containing a fluorescent conjugated polymer (A) and a phosphorescent compound (B) or comprising a polymer having the structure of (A) and the structure of (B) in the same molecule, wherein the following conditions (1), (2) and (3) are satisfied:

Polymer material and device using the same

A polymer light emitting material which contains a polymer compound comprising a repeating unit of the following formula (1) or (2) and having a polystyrene-reduced number-average molecular weight of 10to 10, and which exhibits light emission from the triplet excited state. [wherein Arand Areach independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group. Xand Xeach independently represent O, S, C(&#x2550;O), S(&#x2550;O), SO, C(R)(R), Si(R)(R), N(R), B(R), P(R) or P(&#x2550;O)(R). Xand Arbond to adjacent carbon atoms in the aromatic ring of Ar; and Xand Arbond to adjacent carbon atoms in the aromatic ring of Ar]; [wherein Arand Areach independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group. Xand Xeach independently represent N, B, P, C(R) or Si(R). Xand Arbond to adjacent carbon atoms in the aromatic ring of Ar; and Xand Arbond to adjacent carbon atoms in the aromatic ring of Ar].

Polymer light-emitting material comprising a conjugated polymer and compound exhibiting light emission from the triplet excited state and polymer light-emitting device using the same

The present invention relates to a polymer film comprising a polymer having liquid crystallinity, having a number-average molecular weight in terms of polystyrene of 10to 10and having an electron mobility or hole mobility of 10cm/Vs or more, and having a film thickness in the range from 1 nm to 100 &#x3bc;m. This polymer film can be used for various polymer film devices such as an organic transistor, organic solar battery, optical sensor, electrophotographic photoreceptor, spatial light modulator, photorefractive device and the like.

Polymer film and polymer film device using the same

Polymer film and polymer film device using same

Provided is a polymer compound having a polystyrene reduced number average molecular weight of 10-10, and comprising a repeating unit represented by the below formula (1-1) or (1-2),wherein Ring A, Ring B, Ring C, or Ring D each independently represent an aromatic ring, and X represents S or O. The compound is usable as a light-emitting material, a charge transporting material, etc.

Polymer compound and polymer light emitting device using the same

A polymer characterized by comprising repeating units represented by the following formula (1) and having a number-average molecular weight, in terms of polystyrene, of 10to 10. (In the formula, Rrepresents hydrogen, alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, silyloxy, substituted silyloxy, monovalent heterocyclic group, or halogeno; and rings D and E each represents an optionally substituted aromatic ring.)

Polymer and polymeric luminescent element comprising the same

Growing community of inventors

Tsukuba, Japan

Chizu Sekine