Study of Alkanethiol Self-Assembled Structure Grown on Silver
ORAL
Abstract
Alkanethiol self-assembled structures grown on surface-supported Ag clusters (3D) are studied by measuring heat capacity with nanocalorimeter at high scanning rate (40,000 K/s), and compared with the self-assembled monolayer (SAMs) grown on planar Ag surface (2D). There is more amount of alkanethiol assembled on 3D Ag clusters compared with 2D SAMs, and the melting transition occurs at a higher temperature with sharper melting peak. This is due to the formation of layered Ag-alkanethiolate structure demonstrated by X-ray diffraction. IR spectrum indicates this self-assembled structure has a high degree of conformational order.
*This work is supported by NSF-DMR 0735286.
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Authors
Liang Hu
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
Zishu Zhang
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
Mikhail Yu. Efremov
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
Eric A. Olson
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
Ming Zhang
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
Lito de la Rama
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
Leslie H. Allen
Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign
