摘要:
The present invention relates to systems for photoenergy up-conversion comprising polymers and sensitisers, where the triplet level of the polymer is lower than the triplet level of the sensitiser. These systems exhibit higher efficiency in up-conversion and are therefore more suitable for use in devices for up-conversion than polymers as used in accordance with the prior art.
摘要:
The present invention relates to organic semiconductors which contain structural units L=X and in addition structural units which emit light from the triplet state. The materials according to the invention are more soluble and easier to synthesise and are therefore more suitable for use in organic light-emitting diodes than comparative materials in accordance with the prior art.
摘要:
The present invention relates to polymers which contain certain triarylamine units of the Formula (1) The materials according to the invention exhibit a longer lifetime than materials in accordance with the prior art and therefore more suitable for use in polymeric organic light-emitting diodes.
摘要:
The invention relates to copolymers that comprise the structural units according to formula (1) and iridium complexes as triplet emissives. The inventive polymers are better suited to the use in organic light-emitting diodes than comparable prior art materials.
摘要:
The present invention relates to polymers which contain novel structural units of the formula (I). The materials according to the invention exhibit improved efficiency and a longer lifetime on use in a polymeric organic light-emitting diode.
摘要:
White-emitting copolymers, their preparation and use The present invention relates to white-emitting copolymers which are obtained by a combination of blue-, green- and red-emitting repeating units. The copolymers of the invention display better film formation and an improved efficiency when used in polymeric organic light-emitting diodes compared to materials according to the prior art.
摘要:
The present invention relates to conjugated polymers comprising specific carbazole structural units. The materials according to the invention display steeper current-voltage curves and are therefore better suited to use in organic light-emitting diodes than are comparative polymers which do not contain these units.
摘要:
The present invention relates to conjugated polymers comprising specific carbazole structural units. The materials according to the invention display steeper current-voltage curves and are therefore better suited to use in organic light-emitting diodes than are comparative polymers which do not contain these units.
摘要:
The present invention relates to mixtures and to conjugated polymers which contain bridged carbazole structural units and structural units which emit light from the triplet state. The inventive mixtures exhibit improved efficiencies and reduced operating voltages and are therefore better suited to use in organic light-emitting diodes than comparative materials which do not comprise these units.
摘要:
The present invention relates to 4,4′-substituted spirobifluorenes which are suitable, owing to excellent properties, as functional materials in organic electroluminescent devices. In addition, the present invention relates to a process for the preparation of 4,4′-substituted spirobifluorenes and to the use of these compounds in organic electroluminescent devices.