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題名 True nanocable assemblies with insulating BN nanotube sheaths and conducting Cu nanowire cores.
作者 楊志開
Zhou,Z1; Zhao,J; Chen,Z; Gao,Xl Lu,JP; von Ragué Schleyer P;Yang,Chih-Kai
貢獻者 應物所
日期 2006.02
上傳時間 23-Sep-2014 10:28:07 (UTC+8)
摘要 Nanocable models comprised of BN nanotubes filled with close-packed Cu nanowires were investigated by gradient-corrected density functional theory (DFT) computations. The optimal distance between the sidewall of BN nanotubes and the atoms in a copper nanowire is about 0.35 nm, with a weak insertion energy (ca. -0.04 eV per Cu atom). Hence, such nanocables are assembled by weaker van der Waals (vdW) forces, rather than by chemical bonding interactions. The electronic band structures of the BN/Cu hybrid systems are superposition of those of the separate components, the BN nanotubes, and the Cu nanowires. Since charge density analyses show that the conduction electrons are distributed only on the copper atoms, charge transport will occur only in these inner nanowires, which are effectively insulated by the outer BN nanotubes. On the basis of these computational results, BN/Cu hybrid structures should be ideal nanocables.
關聯 The Journal of Physical Chemistry B,110,2529-2532
資料類型 article
dc.contributor 應物所en_US
dc.creator (作者) 楊志開zh_TW
dc.creator (作者) Zhou,Z1; Zhao,J; Chen,Z; Gao,Xl Lu,JP; von Ragué Schleyer P;Yang,Chih-Kaien_US
dc.date (日期) 2006.02en_US
dc.date.accessioned 23-Sep-2014 10:28:07 (UTC+8)-
dc.date.available 23-Sep-2014 10:28:07 (UTC+8)-
dc.date.issued (上傳時間) 23-Sep-2014 10:28:07 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/70084-
dc.description.abstract (摘要) Nanocable models comprised of BN nanotubes filled with close-packed Cu nanowires were investigated by gradient-corrected density functional theory (DFT) computations. The optimal distance between the sidewall of BN nanotubes and the atoms in a copper nanowire is about 0.35 nm, with a weak insertion energy (ca. -0.04 eV per Cu atom). Hence, such nanocables are assembled by weaker van der Waals (vdW) forces, rather than by chemical bonding interactions. The electronic band structures of the BN/Cu hybrid systems are superposition of those of the separate components, the BN nanotubes, and the Cu nanowires. Since charge density analyses show that the conduction electrons are distributed only on the copper atoms, charge transport will occur only in these inner nanowires, which are effectively insulated by the outer BN nanotubes. On the basis of these computational results, BN/Cu hybrid structures should be ideal nanocables.en_US
dc.format.extent 109 bytes-
dc.format.mimetype text/html-
dc.language.iso en_US-
dc.relation (關聯) The Journal of Physical Chemistry B,110,2529-2532en_US
dc.title (題名) True nanocable assemblies with insulating BN nanotube sheaths and conducting Cu nanowire cores.en_US
dc.type (資料類型) articleen