Effects of thermal annealing temperature and duration on hydrothermally grown ZnO nanorod arrays

• Published in: Applied surface science 2009-03, Vol.255 (11), p.5861-5865
• Main Authors: Zhao, X.Q., Kim, C.R., Lee, J.Y., Shin, C.M., Heo, J.H., Leem, J.Y., Ryu, H., Chang, J.H., Lee, H.C., Son, C.S., Shin, B.C., Lee, W.J., Jung, W.G., Tan, S.T., Zhao, J.L., Sun, X.W.
• Format: Article
• Language: English
• Subjects: Annealing treatment; Clusters, nanoparticles, and nanocrystalline materials; Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization; Cold working, work hardening; annealing, quenching, tempering, recovery, and recrystallization; textures; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Hydrothermal synthesis; Ii-vi semiconductors; Materials science; Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; Optical properties of nanoscale materials and structures; Photoluminescence; Physics; Structure of solids and liquids; crystallography; Treatment of materials and its effects on microstructure and properties; ZnO
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2009.01.022

In this study, the effects of thermal annealing temperature and duration on ZnO nanorod arrays fabricated by hydrothermal method were investigated. The annealed ZnO/Si(1 1 1) substrate was used for ZnO nanorod array growth. The effects of annealing treatment on the structural and optical properties were investigated by scanning electron microscopy, X-ray diffraction, and room-temperature photoluminescence measurements. With the annealing temperature of 750 °C and the annealing duration of 10 min, both the structural and optical properties of the ZnO nanorod arrays improved significantly, as indicated in the X-ray diffraction and photoluminescence measurement.