Title :
Low temperature growth of ZnO rods by EDTA-assisted hydrothermal synthesis
Author :
Guangmei Zhai ; Gong, Hua ; Wang, Minqiang ; Lin, Zhonghai ; Liu, Kaiping ; Zhang, Daoli
Author_Institution :
Sch. of Mater. Sci. & Eng., Chang´´an Univ., Xi´´an
Abstract :
One-dimensional ZnO rods about 40 mum long are prepared by low temperature disodium ethylene diamine tetraacetate (EDTA)-assisted hydrothermal method. The prepared ZnO crystals are characterized by X-ray power diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It is found that EDTA plays an important role to crystal habit of ZnO crystal and ZnO rods can not be obtained without EDTA. Based on the supersaturation-nucleation-growth conventional crystal growth mechanism in solution together with Anion Coordination Polyhedron Growth Unity Theory, possible effect mechanism of EDTA to crystal habit of ZnO is discussed.
Keywords :
II-VI semiconductors; X-ray diffraction; crystal growth from solution; crystal morphology; nucleation; rods (structures); scanning electron microscopy; semiconductor growth; transmission electron microscopy; wide band gap semiconductors; zinc compounds; EDTA-assisted hydrothermal synthesis; X-ray power diffraction; ZnO; crystal habit; crystal morphology; disodium ethylene diamine tetraacetate; scanning electron microscopy; supersaturation-nucleation-growth conventional crystal growth; transmission electron microscopy; zinc oxide rods; Crystalline materials; Crystals; Materials science and technology; Powders; Scanning electron microscopy; Temperature; Transmission electron microscopy; X-ray diffraction; X-ray scattering; Zinc oxide; EDTA; ZnO rods; crystal morphology; hydrothermal synthesis;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009. 4th IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4629-2
Electronic_ISBN :
978-1-4244-4630-8
DOI :
10.1109/NEMS.2009.5068762
