Trimming of aqueous chemically grown ZnO nanorods into ZnO nanotubes and their comparative optical properties
2009 (English)In: APPLIED PHYSICS LETTERS, ISSN 0003-6951, Vol. 95, no 7, 073114- p.Article in journal (Refereed) Published
Highly oriented ZnO nanotubes were fabricated on a silicon substrate by aqueous chemical growth at low temperature (andlt; 100 degrees C) by trimming of ZnO nanorods. The yield of nanotubes in the sample was 100%. Photoluminescence spectroscopy of the nanotubes reveals an enhanced and broadened ultraviolet (UV) emission peak, compared with the initial nanorods. This effect is attributed to whispering gallery mode resonance. In addition, a redshift of the UV emission peak is also observed. Enhancement in the deep defect band emission in the nanotubes compared to nanorods was also manifested as a result of the increased surface area.
Place, publisher, year, edition, pages
2009. Vol. 95, no 7, 073114- p.
crystal growth from solution, II-VI semiconductors, nanofabrication, red shift, semiconductor growth, semiconductor nanotubes, whispering gallery modes, wide band gap semiconductors, zinc compounds
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-20618DOI: 10.1063/1.3211124OAI: oai:DiVA.org:liu-20618DiVA: diva2:235569