Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
99 0 |
SM ISO690:2012 LUPAN, Oleg, CHOW, Lee, CHAI, Guangyu, SCHULTE, Alfons, PARK, Sang Hoon, LOPATIUK-TIRPAK, Olena, CHERNYAK, Leonid, HEINRICH, Helge H.. Biopolymer-assisted self-assembly of ZnO nanoarchitectures from nanorods. In: Superlattices and Microstructures, 2008, vol. 43, pp. 292-302. ISSN 0749-6036. DOI: https://doi.org/10.1016/j.spmi.2007.12.003 |
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Superlattices and Microstructures | ||||||
Volumul 43 / 2008 / ISSN 0749-6036 | ||||||
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DOI:https://doi.org/10.1016/j.spmi.2007.12.003 | ||||||
Pag. 292-302 | ||||||
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Rezumat | ||||||
We have investigated three-dimensional (3-D) architectures-microspheres and radial structures-based on biopolymer-assisted self-assembly from one-dimensional 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 X-ray 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. |
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Cuvinte-cheie Cathodeluminescence, Nanofabrication, Self-Assembly, ZnO nanorod |
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