期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 598, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2022.121925
关键词
Silicon oxynitride; Chemical vapor deposition; Electronic structure; XPS; FTIR; Memristors
资金
- Russian Science Foundation [22-19-00369]
- Ministry of Education and Science of Russia [075-12-2021-697]
The electronic structure and optical properties of SiOxNy:H films enriched with silicon obtained by plasma-enhanced chemical deposition are studied. It is found that the film composition can be effectively varied by changing the gas flow ratio and plasma generator power. Additionally, the p+-Si/SiOxNy:H/Ni structures exhibit properties of memristor bipolar type.
The electronic structure and optical properties of SiOxNy:H films enriched with silicon obtained by plasma -enhanced chemical deposition are studied. It is shown, that with the plasma generator power growth, the content of silicon (amorphous silicon clusters) and oxygen decreases, whereas the nitrogen content increases. Thus, the SiOxNy:H film composition can be effectively varied both by changing the gas flow ratio in the growth chamber and by changing the plasma generator power. The electronic stricture of SiOxNy of various x and y values is calculated from the first principles for the model structures, and the energy diagram, as well as the bandgap dependence on the oxygen content, is obtained. It is found that p+-Si/SiOxNy:H/Ni structures, have the properties of memristor bipolar type: they are reversibly switched between high and low resistance states. These memristors are forming-free: the initial state has a close resistance to the low resistance state.
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