Presentation Information
[2F08]Fast scan of the chemical structure of PTCDA
*Yuuki Yasui1, Yoshiaki Sugimoto1 (1. Graduate School of Frontier Sciences, The University of Tokyo)
We demonstrate fast scans of the chemical structure of molecules by using an optical interferometry technique with Si cantilevers. We used 3,4,9,10-perylene tetracarboxylic dianhydride (PTCDA) molecules deposited onto Au(111) substrates as an example of a molecule. The constant-height scans were measured with the second flexural oscillation of a Si cantilever. We then successfully observed the chemical structure of PTCDA molecules at a scan speed of up to around 100 nm/s. The present technique prompts a subsequent examination of fast events such as reactions and diffusions on surfaces.