Berlin 2005 – wissenschaftliches Programm
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O: Oberflächenphysik
O 36: Postersitzung (Elektronische Struktur, Grenzfl
äche fest-flüssig, Halbleiteroberfl
ächen und -grenzfl
ächen, Nanostrukturen, Oberfl
ächenreaktionen, Teilchen und Cluster, Struktur und Dynamik reiner Oberfl
ächen)
O 36.45: Poster
Montag, 7. März 2005, 15:00–18:00, Poster TU F
Thin layers of donor and acceptor mixture as studied by STM, STS and AFM — •Min Ai1, Frank Jäckel1, Peng Wu1, Wei Zhuang1, Jishan Wu2, Klaus Müllen2, and Jürgen P. Rabe1 — 1Humboldt University Berlin, Department of Physics, Newtonstr. 15, 12489 Berlin — 2Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128 Mainz
A new No-dqstarNo-dq type derivative of hexa-peri-hexabenzocoronene (HBC) with rigid arms was investigated as neat system at the interface between its solution in 1,2,4-trichlorobenzene and the basal plane of graphite. STM revealed double layers, where the structure of the first layer was determined by the interaction with the substrate. The second layer exhibits the same lattice parameters as the first layer, but different structure within the unit cell. Structure and electronic properties of layers of the new HBC derivative mixed with an electron acceptor (coronenebis(dicarboximide)) were characterised by STM, STS and AFM.