作者: Sabyasachi Chakrabortty , Asim Guchhait , Xuanwei Ong , Nimai Mishra , Wen-Ya Wu
DOI: 10.1021/ACS.NANOLETT.6B02875
关键词: Materials science 、 Nanorod 、 Nanostructure 、 Nanoparticle 、 Nanotechnology 、 Chemical engineering 、 Nanocrystal 、 Solvent 、 Stoichiometry 、 Ligand 、 Fabrication
摘要: Nonclassical growth mechanisms such as self-assembly and oriented attachment are effective ways to build complex nanostructures from simpler ones. In the latter case, nanoparticle components electronically coupled; however, control over between nanoparticles is highly challenging generally requires a delicate balance dipole-, ligand-, solvent-based interactions. To this end, we perform incomplete cation exchange with Ag+ (Cu+) on CdSe-seeded CdS nanorods tetrapods exclusively convert their tips into small Ag2S (Cu2S) domains. Selective removal of ligands these inorganic domains results in spontaneous, site-specific bridging nanoparticles. Using method, demonstrate fabrication polymer-like linear branched enhanced electrical properties, well stoichiometric formation homo- heterodimers tetramers. We show that linked structures can then be completely exchanged Pb2+...