Abstract:
The present invention relates to polymers comprising a repeating unit of the formula - [Ar3 ]c-[Ar2]b-[Ar1]a-Y(R1 )n1 (R2)n2-[Ar1']a-[Ar2']b´-[Ar3']c´- (I), wherein γ is a bivalent heterocyclic group, or ring system, which may optionally be substituted, Ar1, Ar1' Ar2, Ar2', Ar3 and Ar3' are independently of each other a C6-C24 arylen group, which can optionally be substituted, or a C2-C30 heteroarylen group, which can optionally be, Formula (1), substituted; at least one of R1 and R2 is a group of formula (II); and their use as organic semiconductor in organic devices, especially in organic photovoltaics and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the invention can have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors, organic photovoltaics and photodiodes.
Abstract:
The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
Abstract:
The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula or a polymer of formula and their use as organic semiconductor in organic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.
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:
Disclosed are polymers comprising at least one unit of formula (1), a process for their preparation, intermediates and electronic devices comprising these polymers as semiconducting material.
Abstract:
Compounds of the Formula (I), wherein L1, L'1, L'1, L2, L'2, L'2, L3, L'3, L'3, L4, L'4 and L'4 for example are hydrogen or COT; R, R' and R' for example are hydrogen,C6-C12aryl or C3-C20heteroaryl; X, X' and X' for exampleare O, S, single bond, NRa or NCORa, T is for example hydrogen, C1-C20alkyl, C3-C12cycloalkyl, C2- C20alkenyl, C5-C12cycloalkenyl, C7-C18cycloalkylenaryl, C5-C18cycloalkylenheteroaryl, C6- C14aryl, providedthat at least one of R, R' or R' is unsubstitutedor substituted C3- C20heteroaryl; and Y is an inorganic or organic anion; are suitable as photolatent acid generators.