Infineon Technologies Ag

Efstratios Terzoglu

Marcus Halik

Hagen Klauk

Ute Zschieschang

Günter Schmid

Guenter Schmid

A semiconductor device includes a semiconductor path, the semiconductor path including an organic semiconductor material, a first contact to inject charge carriers into the semiconductor path, a second contact to extract charge carriers from the semiconductor path, and a layer including phosphine arranged between the first contact and the semiconductor path and/or between the second contact and the semiconductor path. The phosphine in the layer acts as a charge transfer molecule which makes it easier to transfer charge carriers between contact and organic semiconductor material. As a result, the contact resistance between contact and organic semiconductor material can be reduced considerably.

Reduction of the contact resistance in organic field-effect transistors with palladium contacts by using phosphines and metal-containing phosphines

A semiconductor device includes a semiconductor section formed from an organic semiconductor material, a first contact for injecting charge carriers into the semiconductor section and a second contact for extracting charge carriers from the semiconductor section, wherein a layer of a nitrile or of an isonitrile is arranged between the first contact and the semiconductor section and/or between the second contact and the semiconductor section. The nitrile or isonitrile acts as a charge transfer molecule facilitating the transfer of charge carriers between contact and organic semiconductor material. This allows the contact resistance between contact and organic semiconductor material to be significantly reduced.

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Erlangen, Germany

Efstratios Terzoglu