Sumitomo Chemical Company, Limited

Nagasaki University

Sumitomo Chemical Company, Limtied

Cambridge Display Teclmology Limited

Cambridge Display Technology Limited

Satoshi Mikami

Satoshi Kobayashi

Chizu Sekine

Tomoya Nakatani

Shuji Doi

Nobuhiko Akino

Martin Humphries

Annette Steudel

Kiran Timothy Kamtekar

Makoto Anryu

Hidenobu Kakimoto

Ruth Pegington

Sophie Barbara Heidenhain

Noboru Kitamura

Shoji Ishizaka

Keisuke Umakoshi

Masayoshi Onishi

Kazutoyo Kimura

Elena Hojas Garcia

Annette Regine Steudel

Sophie Heidenhain

Martin John Humphries

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.

A metal complex which has a metal complex structure showing light emission from triplet excited state, and has a monovalent group derived from carbazole, and a light-emitting device using said metal complex.

Metal complex and organic electroluminescent device

An aromatic compound of the following formula (1), (2), (5) or (6), 

Aromatic compound

An aromatic compound of the following formula (1), (2), (5) or (6), wherein, Arand Arrepresent a tetra-valent aromatic hydrocarbon group or a tetra-valent heterocyclic group, and Ar, Ar, Ar, Arand Arrepresent a tri-valent aromatic hydrocarbon group or a tri-valent heterocyclic group, Arepresents &#x2014;Z&#x2014;, &#x2014;Z-Z&#x2014; or &#x2014;Z&#x2550;Z&#x2014;, wherein Z, Zand Zrepresent O, S or the like and Zand Zrepresent N, B, P or the like, X, X, X, X, X, X, X, and Xrepresent a halogen atom or the like.

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

Disclosed is a metal complex containing a composition represented by the following formula (a). [(Pd)(M)(X)(L)(L')] (In the formula (a), Mrepresents Ag, Auor Cu; X represents Cl, Br or I; L represents a group represented by formula (1); L&#x2032; represents a group represented by formula (2); two Ms may be the same as or different from each other; four Ls may be the same as or different from each other; and two L's may be the same as or different from each other.) (In the formulae (1) and (2), R, Rand Rindependently represent a hydrogen atom, a halogen atom, a hydroxy group, an optionally substituted alkyl group, an optionally substituted aryl group or an optionally substituted monovalent heterocyclic group.) 

Palladium metal complex

An aromatic compound of the following formula (1), (2), (5) or (6), wherein, Arand Arrepresent a tetra-valent aromatic hydrocarbon group or a tetra-valent heterocyclic group, and Ar, Ar, Ar, Arand Arrepresent a tri-valent aromatic hydrocarbon group or a tri-valent heterocyclic group, Arepresents &#x2014;Z&#x2014;, &#x2014;Z&#x2014;Z&#x2014; or &#x2014;Z&#x2550;Z&#x2014;, wherein Z, Zand Zrepresent O, S or the like and Zand Zrepresent N, B, P or the like, X, X, X, X, X, X, X, and Xrepresent a halogen atom or the like.

Growing community of inventors

Tsukuba, Japan

Satoshi Mikami