期刊
SILICON
卷 -, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1007/s12633-023-02604-2
关键词
Silicon nitride; Reactive sputtering; Nanostructures; Thin films
Silicon nitride thin films were prepared using different type of conductivity (n-type and p-type) silicon targets and gas mixtures with varying ratios (50:50 and 70:30) through dc reactive magnetron sputtering technique. The structural and hardness properties of the films were investigated, showing that the type of conductivity and gas mixing ratio affected the film characteristics. Lower nitrogen content in the gas mixture resulted in silicon nitride nanostructures with residual unbounded silicon atoms and larger particle size. Films prepared from n-type silicon target exhibited higher homogeneity, while films prepared from p-type silicon target exhibited higher hardness.
In this work, silicon nitride thin films were prepared by dc reactive magnetron sputtering technique using silicon targets with different type of conductivity (n-type and p-type) as well as different gas mixture (50:50 and 70:30). The structural and hardness characteristics of the prepared films were determined as functions of type of conductivity and gas mixing ratio. The obtained results showed that using gas mixture with lower content of nitrogen lead to prepare silicon nitride nanostructures with residual unbounded silicon atoms. Also, larger particles were produced when using gas mixture with lower nitrogen content. As well, preparation of silicon nitride nanostructures from n-type silicon target resulted in higher homogeneity than those prepared from p-type silicon target. Silicon nitride films prepared from p-type silicon target showed higher tendency to distribute uniformly over the substrate's surface. On the other hand, silicon nitride films prepared from p-type silicon target showed higher hardness.
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