Abstract:
The present invention provides compounds of formula (I) wherein X is O, S or NR 10 , wherein R 10 is H, C 1-30 -alkyl, substituted C 1-30 -alkyl, C 2-30 -alkenyl, substituted C 2-30 -alkenyl, C 2-30 -alkynyl, substituted C 2-30 -alkynyl or C(0)-OR 11 , R 1 and R 11 are independently from each other selected from the group consisting of C 1-30 -alkyl, substituted C 1-30 -alkyl, C 2-30 -alkenyl, substituted C 2-30 -alkenyl, C 2-30 -alkynyl, substituted C 2-30 -alkynyl, C 5-8 -cycloalkyl, substituted C 5-8 -cycloalkyl, C 5-8 -cycloalkenyl, and substituted C 5-8 -cycloalkenyl, and an electronic device comprising the compounds as semiconducting material.
Abstract:
Disclosed are a novel semiconductor composition comprising at least one organic semiconductor in a liquid medium and the use thereof the production of organic semiconductor devices, in particular organic field effect transistors, organic solar cells, light- emitting diodes and sensors.
Abstract:
Provided is a process for preparing a composition comprising semiconducting single-walled carbon nanotubes, a semiconducting polymer and solvent A (composition A), which process comprises the step of separating composition A from a composition comprising semiconducting and metallic single-walled carbon nanotubes, the semiconducting polymer and solvent B(composition B), wherein the semiconducting polymer has a band gap in the range of 0.5 to 1.8 eV and solvent A and B comprise an aromatic or a heteroaromatic solvent, composition A itself, a process for forming an electronic device, which process comprises the step of forming a layer by applying composition A to a precursor of the electronic device, as well as the electronic device obtainable by this process.
Abstract:
Compounds of Formula (I) used as semiconductors, in particular as semiconductors in organic electronics and organic photovoltaics are disclosed, wherein X 1 , X 2 are O or C(CN) 2 , A is selected Formula (II1), Formula (II2), Formula (II3) from Formula (II4), Formula (II5), Formula (II6), if present, X 3 , X 4 are O or C(CN) 2 and m, R 4a , R 4b , R 5a , R 5b , R 6a , R 6b , R 6c , R 6d , R 7a , R 7b , R 8a , R 8b , R 9 , R 10a , R 10b , R m1 , R m2 , R m3 and R m4 are as defined in the claims and description.
Abstract:
The present invention relates to a process for purifying graphene nanoribbons, which comprises: - bringing into contact a composition comprising graphene nanoribbons GNR1 and one or more contaminants with a liquid medium comprising a dispersant, and dispersing the graphene nanoribbons GNR1 in the liquid medium so as to obtain a liquid dispersion of the graphene nanoribbons GNR1, - subjecting the liquid dispersion of the graphene nanoribbons GNR1 to a separation treatment so as to at least partly remove the one or more contaminants, thereby obtaining a liquid dispersion of purified graphene nanoribbons GNR1.