Nano/Micro-Structured ZnO Rods Synthesized by Thermal Chemical Vapor Deposition with Perpendicular Configuration

• Published in: Nanomaterials (Basel, Switzerland) Vol. 11; no. 10; p. 2518
• Main Authors: Choi, Seok Cheol, Lee, Do Kyung, Sohn, Sang Ho
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 27.09.2021; MDPI
• Subjects: Catalysis; Catalysts; Chemical synthesis; Chemical vapor deposition; Contact angle; Crystal structure; Crystallography; Diffraction patterns; Lasers; Morphology; nano/micro-structured ZnO rods; one-dimensional ZnO hierarchical nanostructures; one-step process; perpendicular configuration; Photoluminescence; Photons; Photovoltaic cells; Raman spectra; Rods; Silicon substrates; Size effects; Spectrum analysis; thermal chemical vapor deposition; Vapors; Wurtzite; X-ray diffraction; Zinc oxide; ZnO double-structured rods; United States > US; Japan
• ISSN: 2079-4991; 2079-4991
• DOI: 10.3390/nano11102518

Under a one-step process, catalyst-free growth of one-dimensional (1D) ZnO hierarchical nanostructures was performed on ZnO-seeded Si substrate by thermal chemical vapor deposition with a perpendicular setup. The morphological and crystallographic properties of the nano/micro-structured ZnO rods were investigated with varying growth temperature and growth time. X-ray diffraction patterns of 1D ZnO double-structured rods showed the hexagonal wurtzite structure. The morphology and crystal structure of the ZnO double-structured rods were sensitive to the growth temperature and growth time. From Raman scattering and photoluminescence spectra, the orientation and size effects of the ZnO double-structured rods were discussed in relation to growth temperatures and growth times.