|About this Abstract
||2011 TMS Annual Meeting & Exhibition
||Surfaces and Heterostructures at Nano- or Micro-Scale and Their Characterization, Properties, and Applications
||Novel Architectures of Hierarchical Heterostructures: Non-Catalytic Growth of ZnO Nanowires and Their Multifunctional Heterostructures with Gold Nanoparticles
||Wenwu Shi, Austin Starnes, Nitin Chopra
|On-Site Speaker (Planned)
Multi-functional heterostructures comprised of semiconducting nanowires and metal nanoparticles are of significance for optoelectronics and energy applications. Herein, for the first time, we report a simple and non-catalytic CVD process that produced branched ZnO nanowires (BZN). As a next step, gold nanoparticles were nucleated on the surface of BZN in a surfactant-free approach resulting in novel nanowire-nanoparticle heterostructures. Fundamental understanding of the heterostructures and their crystal structures, phases, interfaces, chemical functionality, composition, and thermal stability was developed using SEM, HR-TEM, XRD, DTA-TGA, FT-IR. The kinetics of heterostructure formation and their unique optical properties were studied in real-time. The growth mechanisms of BZN and their unique branched configuration have also been discussed here.
||Planned: A CD-only volume