Basf Se Corporation

Hans Juerg Kirner

Mathieu G R Turbiez

Natalia Chebotareva

Mathias Dueggeli

Thomas Schaefer

Olivier Frederic Aebischer

Rene Albert Johan Janssen

Martinus Maria Wienk

Pascal Hayoz

Peter Murer

Jean-Charles Flores

Marta Fonrodona Turon

A polymer includes repeating unit(s) of the formula (I). a, b, c, d, e and f are 0, 1, 2, or 3. Arand Arare independently of each other a group of formula (AR1). Ar, Ar, Ar, Ar, Arand Arare independently of each other a group of formula (AR2). The polymer is preferably a co-polymer. 

Diketopyrrolopyrrole polymers as organic semiconductors

The present invention relates to polymers comprising a repeating unit of the formula (I) and their use as organic semiconductor in organic devices, especially a diode, an organic field effect transistor and/or a solar cell, or a device containing a diode and/or an organic field effect transistor, and/or a solar cell. 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 semiconductor devices or organic photovoltaic (PV) devices (solar cells). 

The present invention relates to novel compounds, 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 a repeating unit of the formula (I), and compounds of formula (VIII), or (IX), wherein Y, Y, Yand Yare independently of each other a group of formula (I), and their use as organic semiconductor in organic electronic devices, especially in organic photovoltaics and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers and compounds 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 and compounds according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes. 

Dithienobenzofuran polymers and small molecules for electronic application

This invention relates to a polymer containing a unit of formula -[A]-, a unit of formula -[COM]-, and a unit of formula -[COM]-, wherein A is a repeating unit of formula (I): COMis a repeating unit of formula: andCOM- is a second repeating unit -COM-, which is different from the first repeating unit -COM-, a second repeating unit -A-, which is different from the first repeating unit -A-, or a repeating unit of formula: The invention also relates to articles and devices containing the polymer above, as well as processes for preparing the polymer and the articles and devices containing the polymer.

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Basel, Switzerland

Hans Juerg Kirner