Well-ordered ZnO nanowires with controllable inclination on semipolar ZnO surfaces by chemical bath deposition
| Autor: | Estelle Appert, Jean-Michel Chauveau, Vincent Consonni, Hervé Roussel, Thomas Cossuet, Odette Chaix-Pluchery, Jean-Luc Thomassin |
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| Přispěvatelé: | Laboratoire des matériaux et du génie physique [?-2019] (LMGP [?-2019]), Institut polytechnique de Grenoble - Grenoble Institute of Technology [2007-2019] (Grenoble INP [2007-2019])-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG), Laboratoire des matériaux et du génie physique (LMGP ), Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Nice Sophia Antipolis - Faculté des Sciences (UNS UFR Sciences), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA) |
| Rok vydání: | 2018 |
| Předmět: |
Nanostructure
Materials science Nanowire Nucleation Nanoparticle Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences symbols.namesake General Materials Science Electrical and Electronic Engineering ComputingMilieux_MISCELLANEOUS business.industry Mechanical Engineering [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Mechanics of Materials symbols Optoelectronics Crystallite 0210 nano-technology Raman spectroscopy business Single crystal Chemical bath deposition |
| Zdroj: | Nanotechnology Nanotechnology, 2018, 29 (47), pp.475601 Nanotechnology, Institute of Physics, 2018, 29 (47), pp.475601 |
| ISSN: | 1361-6528 0957-4484 |
| Popis: | Controlling the formation of ZnO nanowire (NW) arrays on a wide variety of substrates is crucial for their efficient integration into nanoscale devices. While their nucleation and growth by chemical bath deposition (CBD) have intensively been investigated on non-polar and polar c-plane ZnO surfaces, their formation on alternatively oriented ZnO surfaces has not been addressed yet. In this work, the standard CBD technique of ZnO is investigated on [Formula: see text] and [Formula: see text] semipolar ZnO single crystal surfaces. A uniform nanostructured layer consisting of tilted ZnO NWs is formed on the [Formula: see text] surface while elongated nanostructures are coalesced into a two-dimensional compact layer on the [Formula: see text] surface. By further combining the CBD with selective area growth (SAG) using electron beam-assisted lithography, highly tilted well-ordered ZnO NWs with high structural uniformity are grown on the [Formula: see text] patterned surface. The structural analysis reveals that ZnO NWs are homoepitaxially grown along the polar c-axis. The occurrence of quasi-transverse and -longitudinal optical phonon modes in Raman spectra is detected and their origin and position are explained in the framework of the Loudon's model. These results highlight the possibility to form ZnO NWs on original semipolar ZnO surfaces. It also opens the way for comprehensively understanding the nucleation and growth of ZnO NW arrays on poorly and highly textured polycrystalline ZnO seed layers composed of nanoparticles with a wide range of non-polar, semipolar, and polar plane orientations. Eventually, the possibility to tune both the inclination and dimensions of well-ordered ZnO NW arrays by using SAG on semipolar surfaces is noteworthy for photonic and optoelectronic nanoscale devices. |
| Databáze: | OpenAIRE |
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