Self-assembly of organic semiconductor nanostructures via organic solid-solid wetting deposition. Organic Semiconductor Group Dr. Frank Trixler
Organic Semiconductor
          Group Dr. Trixler
Graphene Doping via OSWD

 
Optical microscopy image of a photolithographically contacted graphene sheet (faint gray horizontal line between the contacts) © F. Trixler.

Graphene is a one-atom thick carbon sheet with exceptional properties. Tuning its electronic structure is important for carbon based electronics.

Organic Solid-Solid Wetting Deposition (OSWD) enables to adsorb insoluble organic semiconductors and pigments on various substrates. The list of suitable substrates include graphene and carbon nanotubes. We thus investigate possible OSWD-induced chemical doping effects of single-layer graphene.

According to our results, based on different spectroscopic methods, OSWD enables surface-transfer doping of graphene. The results open up a very easily applicable, low-cost, and eco-friendly way for bandgap engineering of graphene via commercially available organic pigments.


Publication:

Doping graphene via organic solid-solid wetting deposition.
A. Eberle, A. Greiner, N. P. Ivleva, B. Arumugam, R. Niessner and F. Trixler.
Carbon 125, 84-92 (2017),
DOI: 10.1016/j.carbon.2017.09.043



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