TY - GEN
T1 - Growth of TiO 2 thin films on Si(001) and SiO 2 by reactive high power impulse magnetron sputtering
AU - Magnus, F.
AU - Agnarsson, B.
AU - Ingason, A. S.
AU - Leosson, K.
AU - Olafsson, S.
AU - Gudmundsson, J. T.
N1 - Funding Information: This work was partially supported by the University of Iceland Research Fund, the Icelandic Research Fund grant no 072105003 and the Icelandic Research Fund Excellence Grant no 100019011.
PY - 2012
Y1 - 2012
N2 - Thin TiO 2 films were grown on Si(001) and SiO 2 substrates by reactive dc magnetron sputtering (dcMS) and high power impulse magnetron sputtering (HiPIMS) at temperatures ranging from 300 to 700°C. Both dcMS and HiPIMS produce polycrystalline rutile TiO 2 grains, embedded in an amorphous matrix, despite no postannealing taking place. HiPIMS results in significantly larger grains, approaching 50% of the film thickness at 700°C. In addition, the surface roughness of HiPIMS-grown films is below 1 nm rms in the temperature range 300-500°C which is an order of magnitude lower than that of dcMS-grown films. The results show that smooth, rutile TiO 2 films can be obtained by HiPIMS at relatively low growth temperatures, without postannealing.
AB - Thin TiO 2 films were grown on Si(001) and SiO 2 substrates by reactive dc magnetron sputtering (dcMS) and high power impulse magnetron sputtering (HiPIMS) at temperatures ranging from 300 to 700°C. Both dcMS and HiPIMS produce polycrystalline rutile TiO 2 grains, embedded in an amorphous matrix, despite no postannealing taking place. HiPIMS results in significantly larger grains, approaching 50% of the film thickness at 700°C. In addition, the surface roughness of HiPIMS-grown films is below 1 nm rms in the temperature range 300-500°C which is an order of magnitude lower than that of dcMS-grown films. The results show that smooth, rutile TiO 2 films can be obtained by HiPIMS at relatively low growth temperatures, without postannealing.
UR - https://www.scopus.com/pages/publications/84455183113
U2 - 10.1557/opl.2011.1010
DO - 10.1557/opl.2011.1010
M3 - Conference contribution
SN - 9781605113296
T3 - Materials Research Society Symposium Proceedings
SP - 39
EP - 44
BT - Titanium Dioxide Nanomaterials
T2 - 2011 MRS Spring Meeting
Y2 - 25 April 2011 through 29 April 2011
ER -