摘要:
A composition comprising a phosphorescent compound, and a compound having a structure containing three or more repeating units having a dipole moment dimension of 1.0 Debye or more connected in series, wherein, based on the total number of dimer structures composed of any two repeating units connected in series contained in the above-described structure, the proportion of the number of dimer structures in which the dimension D 2 of the dipole moment of the dimer structure, the dimension D 1a of the dipole moment of the first repeating unit constituting the dimer structure and the dimension D 1b of the dipole moment of the second repeating unit constituting the dimer structure satisfy a relation represented by the following formula (A): D 1 �¢ a
摘要:
PROBLEM TO BE SOLVED: To provide a high molecular compound which gives enough luminance even at a low driving voltage when the compound is applied to a light-emitting element.SOLUTION: The high molecular compound in a suitable embodiment includes a block (A) including a plurality of first groups and also including a structure in which the first groups are linked to each other by a second group represented by formula (0-0), and has at least either group represented by formula (0-1) or formula (0-2) as the first group. In formulas (0-1) and (0-2), X-Xand X-Xrepresent a carbon atom or nitrogen atom.
摘要:
PROBLEM TO BE SOLVED: To provide a material which yields a long-life element when used for making an organic electroluminescent element, etc.SOLUTION: The polymer compound contains repeating units represented by formula (1) and substituted fluorene repeating units. The composition contains the polymer compound and at least one kind of material selected from the group consisting of a positive hole transport material, an electron transport material and a light-emitting material.
摘要:
PROBLEM TO BE SOLVED: To provide a light emitting material with excellent light emission efficiency. SOLUTION: The composition includes a compound having a residual group of one kind or more of nitrogen-containing compound selected from the group consisting of nitrogen-containing compounds represented by formulae (1-1), (1-2), (1-3) and (1-4) [wherein R represents a hydrogen atom or a substituent and a plurality of existing R's can be the same or different] and a residual group of one kind or more of nitrogen-containing polycyclic compound selected from the group consisting of the nitrogen-containing polycyclic compound, and a phosphorous photo-luminescent compound. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a light-emitting material capable of preparing a light-emitting element with excellent light emission efficiency. SOLUTION: The composition includes a compound having a saturated heterocyclic structure, in which the number of constituents of the ring containing a nitrogen atom such as a compound of formula (C-1) is five or more, and a phosphorous photo-luminescent compound. COPYRIGHT: (C)2010,JPO&INPIT