共查询到20条相似文献,搜索用时 0 毫秒
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Pierrick Clment Xinzhao Xu Craig T. Stoppiello Graham A. Rance Antonio Attanzio James N. O'Shea Robert H. Temperton Andrei N. Khlobystov Kevin R. J. Lovelock Jake M. Seymour Richard M. Fogarty Alastair Baker Richard A. Bourne Brendan Hall Thomas W. Chamberlain Matteo Palma 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(29):10033-10037
We present the synthesis of metal nanowires in a multiplexed device configuration using single‐walled carbon nanotubes (SWNTs) as nanoscale vector templates. The SWNT templates control the dimensionality of the wires, allowing precise control of their size, shape, and orientation; moreover, a solution‐processable approach enables their linear deposition between specific electrode pairs in electronic devices. Electrical characterization demonstrated the successful fabrication of metal nanowire electronic devices, while multiscale characterization of the different fabrication steps revealed details of the structure and charge transfer between the material encapsulated and the carbon nanotube. Overall the strategy presented allows facile, low‐cost, and direct synthesis of multiplexed metal nanowire devices for nanoelectronic applications. 相似文献
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《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2017,129(28):8256-8260
Elemental phosphorus displays an impressive number of allotropes with highly diverse chemical and physical properties. White phosphorus has now been filled into single‐wall carbon nanotubes (SWCNTs) from the liquid and thereby stabilized against the highly exothermic reaction with atmospheric oxygen. The encapsulated tetraphosphorus molecules were visualized with transmission electron microscopy, but found to convert readily into chain structures inside the SWCNT “nanoreactors”. The energies of the possible chain structures were determined computationally, highlighting a delicate balance between the extent of polymerization and the SWCNT diameter. Experimentally, a single‐stranded zig‐zag chain of phosphorus atoms was observed, which is the lowest energy structure at small confinement diameters. These one‐dimensional chains provide a glimpse into the very first steps of the transformation from white to red phosphorus. 相似文献
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Mitchell R. Silk Biswaranjan Mohanty Joanne B. Sampson Martin J. Scanlon Philip E. Thompson David K. Chalmers 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(2):606-611
Cyclic d / l peptides (CPs) assemble spontaneously via backbone H‐bonding to form extended nanostructures. These modular materials have great potential as versatile bionanomaterials. However, the useful development of CP nanomaterials requires practical methods to direct and control their assembly. In this work, we present novel, heterogeneous, covalently linked CP tetramers that achieve local control over the CP subunit order and composition through coupling of amino acid side‐chains using copper‐activated azide–alkyne cycloaddition and disulfide bond formation. Cryo‐transmission electron microscopy revealed the formation of highly ordered, fibrous nanostructures, while NMR studies showed that these systems have strong intramolecular H‐bonding in solution. The introduction of inter‐CP tethers is expected to enable the development of complex nanomaterials with controllable chemical properties, facilitating the development of precisely functionalized or “decorated” peptide nanostructures. 相似文献