Image of the Month

November 2007

PTCDA

institution

Microscope:
RHK UHV7500 AFM/STM

Controls:
RHK Technology SPM 1000 featuring XPMProTM and the PLLPro AFM Controller

Description:
Molecular resolution of a monolayer of the organic molecule PTCDA (perylene-tetracarboxylic-dianhydride) obtained in non-contact mode using a frequency shift of -32 Hz for the setpoint. The cantilever oscillation amplitude was 34 nm and the data was obtained at room temperature.

Courtesy of:
Tino Roll, AG Schleberger, Universität Duisburg-Essen