Two nanographenes (blue) with bulky substituents (grey) have each attached a PAH (red) to give a quadruple dye stack. (Image: Arbeitsgruppe Würthner / Universität Würzburg)
Two nanographenes ( blue ) with bulky substituents (grey) have each attached a PAH ( red ) to give a quadruple dye stack. (Image: Arbeitsgruppe Würthner / Universität Würzburg) - Several layers of nanographenes stacked on top of each other: such functional elements could one day be used in solar cells. Würzburg chemists have paved the way for this. Graphene is a carbon material that forms extremely thin layers. Because of its unusual properties, it is interesting for many technical applications. This also applies to polycyclic aromatic hydrocarbons (PAHs), which can be regarded as cut-outs of graphene. They are considered promising materials for organic photovoltaics or for field-effect transistors.
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