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.

The present disclosure provides an organic semiconductor compound, which has superior charge mobility, low band gap, wide light absorption area and adequate molecular energy level. The conductive organic semiconductor compound of the present disclosure can be used as a material for various organic optoelectric devices such as an organic photodiode (OPD), an organic light-emitting diode (OLED), an organic thin-film transistor (OTFT), an organic solar cell, etc. In addition, it can be prepared into a thin film via a solution process, can be advantageously used to fabricate large-area devices and can reduce the cost of device fabrication.

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.

The present teachings relate to new semiconducting compounds including one or more moieties represented by formula (I): ##STR00001##
wherein X is a chalcogen; and one or more linear conjugated moieties and/or one or more cyclic conjugated moieties other than the moieties represented by formula (I). The present compounds can be used to prepare thin film semiconductor components which can be incorporated into various electronic, optical, and optoelectronic devices.

In one aspect, electrically conductive conjugated polymeric compositions are described herein demonstrating compatibility with aqueous solvents and/or phases. The ability to provide aqueous compatible compositions from previously water insoluble conjugated polymeric systems, in some embodiments, can facilitate use of such systems in a variety of aqueous applications, including biological applications.

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.

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.

The present teachings relate to new semiconducting compounds including one or more moieties represented by formula (I):

##STR00001##

wherein X is a chalcogen; and one or more linear conjugated moieties and/or one or more cyclic conjugated moieties other than the moieties represented by formula (I). The present compounds can be used to prepare thin film semiconductor components which can be incorporated into various electronic, optical, and optoelectronic devices.

Provided are: a macromolecular compound for providing an organic semiconductor material exhibiting excellent conversion efficiency; a starting-material compound having high material design freedom; and methods for producing the same.

The macromolecular compound according to the present invention comprising a benzobisthiazole structural unit represented by the formula (1):

##STR00001## [in the formula (1), T.sup.1 and T.sup.2 each independently represent an alkoxy group, a thioalkoxy group, a thiophene ring optionally substituted by a hydrocarbon group or an organosilyl group, a thiazole ring optionally substituted by a hydrocarbon group or an organosilyl group, or a phenyl group optionally substituted by a hydrocarbon group, an alkoxy group, a thioalkoxy group, an organosilyl group, a halogen atom or a trifluoromethyl group; and B.sup.1 and B.sup.2 each represent a thiophene ring optionally substituted by a hydrocarbon group, a thiazole ring optionally substituted by a hydrocarbon group, or an ethynylene group].

The invention relates to a process for the production of an organic layer comprising regions with different electronic properties. The process is based on the use of dihydroanthracene, dihydrobenzene, benzol or fluorene precursors functionalised with at least one substituted propargyl alcohol. By subjecting these precursors to a reduction/re-aromatisation reaction and/or to a retro-Favorskii reaction one obtains small organic molecules or polymers having different electronic properties, due to the specific chemical composition generated by the different chemical reactions in which the precursors are involved. Therefore, starting from the same precursor and subjecting it alternatively to the two specified reactions, one obtains products with different electronic properties. i.e. molecules characterised by high energy levels of the highest occupied molecular orbital (HOMO), which have at least one aromatic ring substituted with at least one ethynyl group, and molecules characterised by lower energy levels of the lowest unoccupied molecular orbital (LUMO), which have at least one carbonyl functionality, preferably at least one quinone ring or at least one phenyl with at least one carbonyl functionality. The reactions are carried out in such a way that the final products are incorporated into a single organic layer.