TY - JOUR
T1 - Synthesis and characterization of wires-like ZnO structures grown on a graphite support by microwave irradiation
AU - Mora-Hernández, J. M.
AU - Arce-Estrada, E. M.
AU - Zarazúa-Villalobos, L.
AU - Estrada-Flores, M.
AU - Medina-Flores, J.
AU - Reza-San Germán, C.
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/6/29
Y1 - 2015/6/29
N2 - Wires-like ZnO structures supported on graphite plates were synthesized by a microwave-assisted method using zinc oxide as precursor which was previously obtained from a chemical oxidation of zinc nitrate hexahydrate. Characterization was made by X-ray diffraction, scanning and high resolution transmission electron microscopy. X-ray diffraction results revealed that homemade ZnO showed the same diffraction peaks as its commercial counterpart, all reflections corresponds to a ZnO wurtzite hexagonal phase. After an irradiation process done at 2.45 GHz and an output power of 1200 W for 7 min, homemade ZnO showed a morphological transformation which can be appreciated in SEM micrographs resulting in the formation of the wires-like ZnO structures; these ones present a broadness between 150 to 200 nm and a variable length from 0.4 to 5 μm. Moreover, energy dispersive spectroscopy reveals that these structures present an entirely elemental zinc oxide composition. Wires-like ZnO structures use carbon plates as a support medium to perform their oriented growing. Finally, high resolution transmission electron microscopy showed that wires-like ZnO structures presents a crystalline arrangement with an interplanar distance of 2.4 Å corresponding to a preferential crystallographic orientation (101).
AB - Wires-like ZnO structures supported on graphite plates were synthesized by a microwave-assisted method using zinc oxide as precursor which was previously obtained from a chemical oxidation of zinc nitrate hexahydrate. Characterization was made by X-ray diffraction, scanning and high resolution transmission electron microscopy. X-ray diffraction results revealed that homemade ZnO showed the same diffraction peaks as its commercial counterpart, all reflections corresponds to a ZnO wurtzite hexagonal phase. After an irradiation process done at 2.45 GHz and an output power of 1200 W for 7 min, homemade ZnO showed a morphological transformation which can be appreciated in SEM micrographs resulting in the formation of the wires-like ZnO structures; these ones present a broadness between 150 to 200 nm and a variable length from 0.4 to 5 μm. Moreover, energy dispersive spectroscopy reveals that these structures present an entirely elemental zinc oxide composition. Wires-like ZnO structures use carbon plates as a support medium to perform their oriented growing. Finally, high resolution transmission electron microscopy showed that wires-like ZnO structures presents a crystalline arrangement with an interplanar distance of 2.4 Å corresponding to a preferential crystallographic orientation (101).
KW - A1. Morphological stability
KW - A1. Recrystallization
KW - A1. Substrates
KW - B2. Semiconducting II-VI materials
UR - http://www.scopus.com/inward/record.url?scp=84933507290&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2015.06.006
DO - 10.1016/j.jcrysgro.2015.06.006
M3 - Artículo
SN - 0022-0248
VL - 426
SP - 141
EP - 146
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
ER -