Self-directed growth of contiguous perpendicular molecular lines on H-Si(100) surfaces.
Future nanoscale integrated circuits will require the realization of interconnections using molecular-scale nanostructures; a practical fabrication scheme would need to be largely self-assembling and operate on a large number of like structures in parallel. The self-directed growth of organic molecules on hydrogen-terminated silicon(100) [H-Si(100)] offers a simple method of realizing one-dimensional molecular lines. In this work, we introduce the ability to change the growth direction and form more complex, contiguous shapes. Numerous styrene and trimethylene sulfide L shapes were grown on a H-Si(100)-3x1 surface in parallel with no intermediate surface lithography steps, and similar shapes were also grown using allyl mercaptan and benzaldehyde on H-Si(100)-2x1. Registered scanning tunneling microscopy (STM) images and high-resolution electron energy loss spectroscopy (HREELS) were used to investigate the growth process.
Zikovsky
Janik
J
Department of Physics, University of Alberta, Edmonton, Alberta T6G 2G7, Canada.
Dogel
Stanislav A
SA
Haider
M Baseer
MB
DiLabio
Gino A
GA
Wolkow
Robert A
RA