Diketopyrrolopyrrole polymers as organic semiconductors

C - Chemistry – Metallurgy – 07 – D

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C07D 487/04 (2006.01) C08G 61/12 (2006.01) C08G 73/06 (2006.01) C09K 11/06 (2006.01) H01L 27/32 (2006.01) H01L 51/00 (2006.01)

Patent

CA 2655076

The present invention relates to polymers comprising a repeating unit of the formula (l) 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).

La présente invention concerne des polymères comprenant une unité de répétition représentée par la formule (1) et leur utilisation comme semiconducteurs organiques dans des dispositifs organiques, notamment une diode, un transistor à effet de champ organique et/ou une cellule solaire, ou un dispositif contenant une diode et/ou un transistor à effet de champ organique et/ou une cellule solaire. Les polymères selon l'invention ont une excellente solubilité dans les solvants organiques et d'excellentes propriétés filmogènes. De plus, un rendement élevé de conversion d'énergie, une excellente mobilité d'effet de champ, de bons rapports de courant marche/arrêt et/ou une excellente stabilité peuvent être observés lorsque les polymères selon l'invention sont utilisés dans des dispositifs à semiconducteurs ou des dispositifs photovoltaïques (PV) organiques (cellules solaires).

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