Basf Se Corporation

Clap Co., Ltd.

Olivier Frédéric Aebischer

Pascal Hayoz

Peter Murer

Mathias Düggeli

Hans Jürg Kirner

Marta Fonrodona Turon

Jean-Charles Flores

Mahmoud Zaher Eteish

Beat Schmidhalter

Thomas Schäfer

Natalia Chebotareva

Frank Bienewald

Mathieu G R Turbiez

Margherita Fontana

Jean-Luc Budry

Marian Lanz

Zhimin Hao

Mathieu G R Turbioz

The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula (I) which are characterized in that Arand Arare independently of each other are an annulated (aromatic) heterocyclic ring system, containing at least one thiophene ring, which may be optionally substituted by one, or more groups, 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. 

Diketopyrrolopyrrole polymers for use in organic semiconductor devices

The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula *A-D* (I), or a polymer of formula *A-DB-D* (II), or *A-DB-DA-EB-E(III), 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.

Dyketopyrrolopyrrole polymers for use in organic semiconductor devices

The present invention relates to novel compounds of the formula (I) wherein Rand R' independently of each other are H or a substituent, halogen or SiRRR; Rand Rmay be the same or different and are selected from C-Calkyl, C-C-cycloalkyl, C-Calkenyl, C-Calkynyl, C-Caryl, C-Calkylaryl or C-Caralkyl, each of which is unsubstituted or substituted, and under conditions as defined in claim, R2 and/or R2&#x2032; may also be halogen or hydrogen; X is a divalent linking group selected from formula (Ia) and formula (Ib); Y and Y&#x2032; independently are selected from formula (Ic), formula (Id), formula (Ie), formula (If), formula (Ig); n and p independently range from 0 to 6; where further symbols are as defined in claim, and to corresponding oligomers and (co)polymers. The compounds according to the invention are useful as semiconductors and 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. 

Polycyclic dithiophenes

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.

The present invention relates to polymers comprising one or more (repeating) unit(s) of the formula (I), and at least one (repeating) unit(s) which is selected from repeating units of the formula (II), (III) and (IV); and polymers of the formula III, or IV 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.A-D&#x2003;&#x2003;(I)B-D&#x2003;&#x2003;(II)A-E&#x2003;&#x2003;(III)B-E&#x2003;&#x2003;(IV)

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.

Diketopyrrolopyrrole polymers for use in organic field effect transistors

A process for the preparation of a substituted 2,2'-dithiophene is described, which process comprises the steps (a), (c) and optional steps (b) and (d): a reaction of a compound of the formula: with a suitable lithium organic compound, preferably Li-alkyl or Li-alkylamide; b) optional exchange of lithium against another metal selected from Mg1 Zn and Cu; c) reaction of the metallated intermediate obtained in step (a) or (b) with a suitable electrophil, which is COor an aldehyde (addition reaction), or a compound Y&#x2032;&#x2014;R17 or Y&#x2032;&#x2014;R18-Z (substitution reaction), where R17 and R18 are as defined in claim; and optionally d) modification of the product obtained in step (c), e.g. by introducing one or more conjugating moieties Y ring closure between suitable monovalent residues R17, exchange or extension of functional groups or substituents such as addition to carbonyl or substitution of carbonyl in R17 or R18. The products, including or corresponding polymers, are excellent conducting materials 

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Düdingen, Switzerland

Olivier Frédéric Aebischer