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An ambipolar peryleneamidine monoimide-fused polythiophene with narrow band gap

Raúl Blanco1, Rafael Gómez, Carlos Seoane

  • 1Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.

Organic Letters
|May 8, 2007
PubMed

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P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...