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October 3rd, 2007
First organic circuits cast
Abstract:
Organic semiconductors aim to self-assemble complex circuitry by precipitation of thinly spread solutions.
Thin films of organic semiconductors have been cast into n- and p-type transistors separately, but the world's first gate to use both was recently fabricated at the University of Washington (Seattle) and Stanford University (Palo Alto, Calif.).
The complementary organic semiconductor (COS) circuitry was created from nanowires that self-assembled at room temperature from solutions of organic semiconductors. The semiconductor inverter gate that was produced (hexathiapentacene for p-type and perylenetetracarboxyldiimide for n-type) had a gain exceeding of 8, an on/off ratio of 104 and electron mobility on the order of one-hundredth of a square centimeter per volt-second.
Source:
eetimes.com
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