tailieunhanh - Báo cáo hóa học: "Fabrication of nanostructure via self-assembly of nanowires within the AAO template"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Fabrication of nanostructure via self-assembly of nanowires within the AAO template | Nanoscale Res Lett 2007 2 34-39 DOI S11671-006-9026-4 NANO EXPRESS Fabrication of nanostructure via self-assembly of nanowires within the AAO template Zhen Wang Mathias Brust Published online 17 November 2006 to the authors 2006 Abstract The novel nanostructures are fabricated by the spatial chemical modification of nanowires within the anodic aluminum oxide AAO template. To make the nanowires better dispersion in the aqueous solution the copper is first deposited to fill the dendrite structure at the bottom of template. During the process of self-assembly the dithiol compound was used as the connector between the nanowires and nanoparticles by a self-assembly method. The nanostructures of the nano cigars and structure which is containing particles junction are characterized by transmission electron microscopy TEM . These kinds of novel nanostructure will be the building blocks for nanoelectronic and nanophotonic devices. Keywords Self-assembly AAO template Nanostruture TEM PACS Introduction Nanoscale electronics promise to deliver ultra high-density memory and logic circuits that can be realized with dimensions well below the scaling limits of Z. Wang El Center for Advanced Material Biotechnology Research Institute of Tsinghua University in Shenzhen Shenzhen 518057 . China e-mail wangzhen919@ Z. Wang M. Brust Department of Chemistry The University of Liverpool Liverpool L69 7ZD UK conventional microfabrication techniques. To realize this aim considerable attention has been devoted to developing molecular-level devices that function as nonlinear circuit elements and nanowires that interconnect these circuit elements. Nanowires have attracted extensive interest because of their interesting electronic and optic properties and because of their potential applications as building blocks for nanoelec-tronic and nanophotonic devices 1 . These metal nanowires are synthesized in the different ways. In one method they are .