Effects of different atomic passivation on conductive and dielectric properties of silicon carbide nanowires

被引：33

作者：

Ma, Yun ^{[1
]}

Yan, Han ^{[1
]}

Yu, Xiao-Xia ^{[2
]}

Gong, Pei ^{[3
]}

Li, Ya-Lin ^{[1
]}

Ma, Wan-Duo ^{[1
]}

Fang, Xiao-Yong ^{[1
]}

机构：

[1] Yanshan Univ, Sch Sci, Key Lab Microstruct Mat Phys Hebei Prov, Qinhuangdao 066004, Peoples R China

[2] Yanshan Univ, Sch Mech Engn, Qinhuangdao 066004, Peoples R China

[3] Nanyang Inst Technol, Sch Math & Phys, Nanyang 473001, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2024年 / 135卷 / 05期

基金：

中国国家自然科学基金;

关键词：

TRANSPORT-PROPERTIES; ELECTRONIC DEVICES; DANGLING BONDS; SEMICONDUCTOR; MICROWAVE; MATRICES; FILMS;

D O I：

10.1063/5.0187116

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Based on the transport and polarization relaxation theories, the effects of hydrogen, fluorine, and chlorine atom passivation on the conductivity and dielectric properties of silicon carbide nanowires (SiCNWs) were numerically simulated. The results show that passivation can decrease the dark conductivity of SiCNWs and increase its ultraviolet photoconductivity. Among them, the photoconductivity of univalent (H) passivated SiCNWs is better than that of seven-valent (Cl, F) passivated SiCNWs. In terms of dielectric properties, the passivated SiCNWs exhibit a strong dielectric response in both deep ultraviolet and microwave regions. Hydrogen passivation SiCNWs produce the strongest dielectric response in deep ultraviolet, while fluorine passivation SiCNWs produce the strongest dielectric relaxation in the microwave band, which indicates that atomic passivation SiCNWs have a wide range of applications in ultraviolet optoelectronic devices and microwave absorption and shielding.

引用

页数：10

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