Functional Organic Monolayers
Final rept. 1 Sep 2000-31 Oct 2005
ARIZONA STATE UNIV TEMPE
Pagination or Media Count:
Abstract 1. New electron and X-ray diffraction methods have been developed for the structure analysis of organic sensors and detectors. 2. The structure of an organic colorimetric biosensor has been determined by electron diffraction. 3. A new hard light-element crystal structure has been discovered and its structure determined. 4. A new method of lensless imaging for electrons and X-rays has been discovered. This method replaces lenses with a computer. X-ray diffraction patterns collected at the Lawrence Berkeley Laboratory Advanced Light source synchrotron have been inverted to images of test objects with a resolution of about 30nm. 5. The lensless imaging method has been applied to electron diffraction patterns obtained in a TEM from metal nanoparticles containing defects. Atomic resolution images of these defects at interfaces have been reconstructed from electron microdiffraction patterns. The method makes it possible to reconstruct images from new forms of radiation for which no lenses exist.
- Atomic and Molecular Physics and Spectroscopy