Provider: Ingenta Connect Database: Ingenta Connect Content: application/x-research-info-systems TY - ABST AU - Yan, Xaodong AU - Zou, Chongwen AU - Chen, Ray AU - Li, Sean AU - Yang, Jack AU - Alyamani, Ahmed AU - Bian, Jiming AU - Haemmerle, Eric AU - Gao, Wei TI - Conversion Process of ZnO Nano-/Micro-Rods into Nano-/Micro-Tubes and Cathodoluminescence Characterization JO - Journal of Nanoscience and Nanotechnology PY - 2011-04-01T00:00:00/// VL - 11 IS - 4 SP - 3711 EP - 3715 KW - CATHODOLUMINESCENCE KW - ZNO KW - NANOTUBE N2 - A simple two-steps method has been successfully developed to synthesize ZnO nanotubes. The alkaline etching process was investigated in detail using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The formation of ZnO nanotube structures was due to the preferential dissolution of the defect-rich top (polar) faces. Cathodoluminescence (CL) was performed on both top and side surfaces of the ZnO tubes. Only the near-band-edge UV emission was observed, implying that the as-grown ZnO nanotubes have a very low concentration of defects. This CL result also provides evidence for explanation of ZnO tubular structure growth. UR - https://www.ingentaconnect.com/content/asp/jnn/2011/00000011/00000004/art00131 M3 - doi:10.1166/jnn.2011.3717 UR - https://doi.org/10.1166/jnn.2011.3717 ER -