Title :
Growth of titanium oxide nanorods
Author :
Plugaru, R. ; Cremades, A. ; Piqueras, J.
Author_Institution :
Nat. Inst. for R&D, Microtechnol. IMT, Bucharest, Romania
Abstract :
Nanorods of titanium oxide (TiO2) were obtained by thermally activated growth process carried out on pellets of nanocrystalline powder with mixed anatase and rutile structures. The nanostructured array consists of nanorods with length between 300 nm and I μm and hexagonal cross section of 100-200 nm diameter. Herein it is shown that one can obtain information on the nanostructure growth from cathodoluminescence emission spectra. The growth process of the rods is mainly associated with the presence of the anatase phase. The key role of characteristic defects in semiconductor oxides, namely oxygen vacancies and Tin+ ions is discussed.
Keywords :
cathodoluminescence; nanostructured materials; semiconductor growth; semiconductor materials; titanium compounds; vacancies (crystal); 100 to 200 nm; 300 nm to 1 micron; TiO2; anatase structure; cathodoluminescence emission spectra; nanocrystalline powder; nanorods; nanostructured array; rutile structure; thermally activated growth process; vacancies; Annealing; Argon; Nanotubes; Optical microscopy; Optical sensors; Photovoltaic cells; Powders; Scanning electron microscopy; Temperature; Titanium;
Conference_Titel :
Semiconductor Conference, 2005. CAS 2005 Proceedings. 2005 International
Print_ISBN :
0-7803-9214-0
DOI :
10.1109/SMICND.2005.1558707
