|Conţinutul numărului revistei|
| SM ISO690:2012|
URSAKI, Veacheslav; RUSU, Emil; SARUA, Andrei; KUBALL, Martin; STRATAN, Gheorghe; BURLACU, Alexandru; TIGINYANU, Ion. Optical characterization of hierarchical ZnO structures grown with a simplified vapour transport method. In: Nanotechnology. 2007, nr. 18(21), pp. 1388-1393. ISSN 0957-4484.
|Numărul 18(21) / 2007 / ISSN 0957-4484|
A new ZnO micro/nanostructure morphology in the form of micro-torches was grown in the family of ZnO hierarchical structures by a simplified thermal chemical vapour transport and condensation method using a vertical furnace. It is formed by two basic parts: a three-dimensional (3D) crystal base and one-dimensional (1D) nanorods nucleated from this base. Mechanisms of this micro/nanostructure growth are suggested to be governed by the change of the ZnO vapour supersaturation level during the crystal growth. Micro-Raman analysis demonstrates good crystal lattice quality, independent of the micro/nanostructure morphology. Differences in the luminescence characteristics inherent to the different parts of the micro/nanostructure are expected to be useful for the development of micro/nano-optoelectronic devices.
Condensation, Crystal growth, Optoelectronic devices,
Crystal lattices, Luminescence, morphology, Nucleation, zinc oxide