کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1690605 | 1011268 | 2012 | 5 صفحه PDF | دانلود رایگان |

Hafnium-Zirconium-Oxide-Nitride (Hf1−xZrxO1−yNy) films are prepared by ion beam assisted deposition on p–Si and quartz substrates with a composite target of sintered high-purity HfO2 and ZrO2. The thermal stability and microstructure characteristics for Hf1−xZrxO1−yNy films have been investigated. EDS results confirmed that nitrogen was successfully incorporated into the Hf1−xZrxO2 films. XRD and Raman analyses showed that the Hf1−xZrxO1−yNy films remain amorphous after 1100 °C under vacuum ambient, and monoclinic HfO2 and ZrO2 crystals separate from Hf1−xZrxO1−yNy films with a increase of the annealing temperature up to 1300 °C. Meanwhile, the Hf1−xZrxO1−yNy films can also effectively suppress oxygen diffusion during high temperature annealing. AFM measurements demonstrated that surface roughness of the Hf1−xZrxO1−yNy films increase slightly. Then the optical properties of the samples were observed in the ultraviolet–visible range at room temperature. The variation in Eg from 5.64 to 6.09 eV as a function of annealing temperature has also been discussed briefly.
► Hf1−xZrxO1−yNy films have been grown by using ion beam assisting deposition.
► The Crystallization temperature of the films is more than 1100 °C.
► Nitrogen reduces diffusion rate for the initial phase separation.
► The highest Eg of 6.09 eV was obtained after annealing at 900 °C.
Journal: Vacuum - Volume 86, Issue 8, 29 February 2012, Pages 1078–1082