Relative conductances of alkaneselenolate and alkanethiolate monolayers on Au{111}

Article Abstract:

The electronic properties of alkanethiolates and alkaneselenolates self-assembled monolayers on Au{111} were quantitatively compared. Simultaneously acquired apparent tunneling barrier height (ATBH) and scanning tunneling microscopy (STM) images reveal that alkanethiolates molecules have a lower barrier to tunneling, and therefore a higher conductance than alkaneselenolates of the same alkyl chain length.

All Other Basic Organic Chemical Manufacturing, All Other Basic Inorganic Chemical Manufacturing, Industrial Organic Chemicals, Industrial inorganic chemicals, not elsewhere classified, Mercaptans, Gold Compounds, Selenium Compounds, Design and construction, Monomolecular films, Alkanes, Thiols

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Ordered local domain structures of decaneselenolate and dodecaneselenolate monolayers on Au{111}

Article Abstract:

The packing and arrangement of decaneselenolate and dodecaneselenolate monolayers on Au{111} is demonstrated through scanning tunneling microscopy (STM) imaging and structural modeling. The two phases of these monolayers consists of a densely packed distorted hexagonal lattice incommensurate to the underlying gold substrate, and a commensurate linear missing-row structure.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Gold, Usage, Crystals, Crystal structure, Scanning tunneling microscopy

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Phase separation within a binary self-assembled monolayer on Au {111} driven by an amide-containing alkanethiol

Article Abstract:

Control and manipulation of the molecular-scale structures of SAMs that enroot to the rational design of new and functional devices are described. SAM formation is a complex interplay between kinetics and thermodynamics that is the observation of short-range phase separation is evidence that enthalpic interactions are important in determining film structure.

Semiconductors and related devices, Semiconductor and Related Device Manufacturing, Digital Array Processors, Molecular structure, Enthalpy, Array processors

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