Growth of TiO 2 thin films on Si(001) and SiO 2 by reactive high power impulse magnetron sputtering

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Abstract

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.

Original languageEnglish
Title of host publicationTitanium Dioxide Nanomaterials
Pages39-44
Number of pages6
DOIs
Publication statusPublished - 2012
Event2011 MRS Spring Meeting - San Francisco, CA, United States
Duration: 25 Apr 201129 Apr 2011

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1352

Conference

Conference2011 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period25/04/1129/04/11

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