Wang Zhang et al 2006 Nanotechnology 17 840 doi:10.1088/0957-4484/17/3/038
Wang Zhang1, Di Zhang1,3, Tongxiang Fan1, Jian Ding1, Qixin Guo2 and Hiroshi Ogawa2
Show affiliationsZnO microtubes with adjustable arrayed nanopores on the walls are prepared by using butterfly wing scales as natural biotemplates. Flat butterfly wing scales used as templates rolled into tubes during the calcinations; all the windows on the scales were reserved and formed porous walls. Furthermore the density of the pores on the walls is partially determined by experimental conditions, such as temperature and time of treatment. The nano/microstructures obtained have been investigated by means of x-ray diffraction and field emission scanning electron microscopy. The room temperature (T = 300 K) cathodoluminescence of these unique ZnO microtubes is also studied. The spectrum shows a sharp near band edge emission and a broad deep level emission, which are similar to those for other previously synthesized ZnO microtubes.
81.07.-b Nanoscale materials and structures: fabrication and characterization
78.60.Hk Cathodoluminescence, ionoluminescence
68.37.Hk Scanning electron microscopy (SEM) (including EBIC)
Condensed matter: electrical, magnetic and optical
Surfaces, interfaces and thin films
Issue 3 (14 February 2006)
Received 16 November 2005
Published 16 January 2006
Wang Zhang et al 2006 Nanotechnology 17 840
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