Biopolymer-assisted self-assembly of ZnO nanoarchitectures from nanorods
Abbreviated Journal Title
ZnO nanorod; self-assembly; nanofabrication; cathodeluminescence; ZINC-OXIDE; RAMAN-SCATTERING; VAPOR-DEPOSITION; DOPED ZNO; MICROSPHERES; GROWTH; FABRICATION; NANOSTRUCTURES; ARRAYS; NANOCOMPOSITES; Physics, Condensed Matter
We have investigated three-dimensional (3-D) architectures - microspheres and radial structures - based on biopolymer-assisted self-assembly from one-dimcnsional ZnO nanorods. The developed method is simple, rapid and cost-effective and can be used for self-assembly of different complex superstructures. A possible model of 3-D architectures self-assembled with biopolymer assistance is presented using minimum energy considerations. Scanning electron microscopy, X-ray diffraction, energy dispersive Xray spectroscopy, transmission electron microscopy, micro-Raman spectroscopy and cathode luminescence investigations show that the novel 3-D architectures are built from high-purity ZnO nanorods with a wurtzite structure. The resulting radial structures show an intense ultraviolet (UV) cathode luminescence emission suggesting applications as UV light emitting diodes or lasers. Their structural characteristics endow them with a broad area of applications and offer a possibility to be used as fundamental low-dimensional building units. These building units open opportunities for the self-assembly of multifunctional nanostructured systems with applications in bioscience and nanomedicine, electronics and photonics. (c) 2007 Elsevier Ltd. All fights reserved.
Superlattices and Microstructures
"Biopolymer-assisted self-assembly of ZnO nanoarchitectures from nanorods" (2008). Faculty Bibliography 2000s. 667.