Molecular bond selective x-ray scattering for nanoscale analysisof soft matter

Journal Article · Thu May 26 00:00:00 EDT 2005 · Science

OSTI ID:888756

Mitchell, G E; Koprinarov, I; Landes, B G; Lyons, J; Kern, B J; Devon, M J; Gullikson, E M; Kortright, J B

We introduce a new technique using resonant soft x-ray scattering for characterizing heterogeneous chemical structure at nanometer length scales in polymers, biological material, and other soft matter. Resonant enhancements bring new contrast mechanisms and increased sensitivity to bridge a gap between bond-specific contrast in chemical sensitive imaging and the higher spatial resolution of traditional small-angle scattering techniques. We illustrate sensitivity to chemical bonding with the resonant scattering near the carbon K edge from latex spheres of differing chemistry and sizes. By tuning to x-ray absorption resonances associated with particular carbon-carbon or carbon-oxygen bonds we can isolate the scattering from different phases in a 2-phase mixture. We then illustrate this increased scattering contrast with a study of the templating process to form nanometer scale pores in 100 nm thick polymer films.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Basic EnergySciences
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 888756
• Report Number(s): LBNL-57717; SCEHDK; R&D Project: 504103; BnR: KC0202020; TRN: US200622%%125
• Journal Information: Science, Vol. 89; Related Information: Journal Publication Date: 2006; ISSN 0193-4511
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
BIOLOGICAL MATERIALS
BONDING
CARBON
CHEMISTRY
LATEX
POLYMERS
SCATTERING
SENSITIVITY
SPATIAL RESOLUTION
TUNING
resonant x-ray scattering molecular bonding polymerfilms