کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5367904 | 1388376 | 2008 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Atomic layer deposition of Cr2O3 thin films: Effect of crystallization on growth and properties Atomic layer deposition of Cr2O3 thin films: Effect of crystallization on growth and properties](/preview/png/5367904.png)
Atomic layer deposition of Cr2O3 thin films from CrO2Cl2 and CH3OH on amorphous SiO2 and crystalline Si(1 0 0) and α-Al2O3(11¯02) substrates was investigated, and properties of the films were ascertained. Self-limited growth with a rate of 0.05-0.1 nm/cycle was obtained at substrate temperatures of 330-420 °C. In this temperature range epitaxial eskolaite was formed on the α-Al2O3(11¯02) substrates. The predominant crystallographic orientation in the epitaxial films depended, however, on the growth temperature and film thickness. Sufficiently thick films grown on the SiO2 and Si(1 0 0) substrates contained also the eskolaite phase, but thinner films deposited at 330-375 °C on these substrates were amorphous. The growth rate data of films with different phase composition allowed a conclusion that the crystalline phase grew markedly faster than the amorphous phase did. The amorphous, polycrystalline and epitaxial films had densities of 4.9, 5.1 and 5.1-5.3 g/cm3, respectively.
Journal: Applied Surface Science - Volume 254, Issue 16, 15 June 2008, Pages 5149-5156