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Advanced In-Situ Studies of Soft Matter Interfaces at NSLS-II

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gerard
1 diapositives · 159 Views · Jul 27, 2014

The proposal outlines state-of-the-art capabilities for in-situ studies of soft matter interfaces utilizing specialized surface-sensitive x-ray scattering techniques at NSLS-II. Two dedicated endstations will enable investigations across various interfaces such as solid/vapor, solid/liquid, and liquid/liquid, leveraging new tender energy capabilities. High-brightness sources will facilitate microbeam modes and time-resolved measurements essential for critical applications in energy materials, environmental studies, and biomolecular materials. Instrumentation innovations promise improved data resolution and visualization.

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Advanced In-Situ Studies of Soft Matter Interfaces at NSLS-II
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  1. S S S S S S S SOFT MATTER INTERFACES (SMI) Group Leader: Elaine DiMasi1 Proposal Team: E. DiMasi1, A. Fluerasu1, M. Fukuto1, O. Gang1, B. Hsiao2, J. Kline3, T. Koga2, I. Kuzmenko4, B. Ocko1, R. Pindak1, M. Schlossman4, H. Strey2, D. Vaknin5, L. Wiegart1, T. Xu6, K. Yager1, L. Yang1, J. Zhang4 1Brookhaven National Laboratory, 2Stony Brook University, 3NIST, 4Argonne National Laboratory, 5University of Illinois, 6Ames Laboratory, 7University of California, Berkeley 18 nm 19.8 nm Ca2+ TECHNIQUES AND CAPABILITIES • Enables in-situ studies of soft-matter interface structures using specialized surface sensitive x-ray scattering techniques. • Two dedicated endstations will allow studies to be carried out at the solid/vapor, solid/liquid, liquid/vapor, liquid/solid and liquid/liquid interfaces, with new tender energy capabilities. • The high brightness of NSLS-II will enable microbeam modes, high q resolution, time resolved measurements, and a wide q range for simultaneous data acquisition. • Simultaneous GISAXS / GIWAXS / GIXD • Diffuse scattering, bragg rods • Fast x-ray reflectivity from liquid interfaces • Predicting 1015 ph/s from undulator source • Energy range 2 to 24 keV • Energy tunability for resonant studies • Beam size 5-500 µm × 2-100 µm (h×v) • Configurable horizontal & vertical focusing APPLICATIONS in ENERGY, ENVIRONMENT, and BIOMOLECULAR MATERIALS ENERGY Microphase behavior and molecular orientations in thin film organic photovoltaic devices and organic LEDs, promising new classes of energy materials; gas hydrate formation at the gas-water interface; structure-function relation in device materials ENVIRONMENT Extractant-mediated transfer of metal ions from aqueous to immiscible organic phase; carbonate mineralization for carbon sequestration BIOMOLECULAR MATERIALS Fundamental understanding of self-assembly to create new functional bio, nano, hybrid, and hierarchical materials INSTRUMENTATION ADVANCES • Windowless path 2-4 keV for resonance from P, S, Cl, K, and Ca for biomolecules • Simultaneous small and wide angle scattering with > 200Hz time resolution and new data visualization • New capabilities for Liquids with tender x-rays and fast reflectivity Poster created by Lutz Wiegart, Interim Project Leader, 2011. Updated by SMI Beamline Development Group, Elaine DiMasi, Warren Halbig, and Amanda King, 2012.