Self-organization and tunable characteristic lengths of twodimensional hexagonal superlattices of nanowires directly grown on substrates
作者机构：Universitéde ToulouseLaboratoire de Physique et Chimie des Nano-ObjetsUMR 5215 INSACNRSUPS135 Avenue de RangueilF-31077 Toulousecedex 4France CEMESUniversitéde ToulouseCNRS29 Rue Jeanne MarvigBP 94347F-31055 ToulouseFrance Laboratoire de Génie ChimiqueUniversitéde ToulouseCNRSINPUPS ToulouseFrance
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第1期
页 面：1606-1613页
核心收录：
学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
主 题：metallic nanowire array self-assembly self-organized growth Co nanowire anisotropic growth solution epitaxial growth
摘 要：The organization of nano-objects on macroscopic surfaces is a key challenge for the technological improvement and implementation of *** achieving operational functions,it is required to assemble nano-objects as controllable building blocks in highly ordered ***,we demonstrate the growth and self-organization of metallic nanowires on surfaces into hexagonal superlattices with tunable characteristic lengths depending of the stabilizing surfactants *** from a reacting mixture containing a Pt(111)substrate,a Co organometallic precursor,an amine,and an acid dissolved in a solvent,we quantify the structural evolution of superlattices of vertical single-crystalline Co nanowires on Pt,using a combined analysis of small angle neutron scattering,transmission,and scanning electron *** show the concerted steps of a spontaneous growth and self-organization of the nanowires into two-dimensional(2D)hexagonal lattice on Pt,at intervals starting from a few hours of reaction to a highly ordered superlattice at longer ***,it is shown that apart from long-chain acid and long-chain aliphatic amine pairs used as stabilizers,the combination of a long-chain aliphatic and a short-chain aromatic ligand in the synthesis can also be employed for the nanowire superlattices ***,the possibility to employ different pairs allows quantitative modulation of the nanowire arrays,such as the interwire distance and the packing fraction.
维普期刊数据库