Armchair-edged C<sub>3</sub>B Nanoribbons:Structural Stability, Electronic Properties and Physical Modulation Effects
نویسندگان
چکیده
C<sub>3</sub>B monolayer is a typical graphene-like two-dimensional material, which has been successfully prepared experimentally. Here, we use the density functional theory to study structural stability, electronic properties and physical regulation effects of its armchair-edged nanoribbons. The results show that for bare-edged nanoribbons, if ribbon edges are composed C atoms completely(AA-type), their phase semiconductor; when both ribbons consist B (BB-type)jointly, metal; one edge other comprised (AB-type), also metal. This suggests atom located at plays an important role in determining whether nanoribbons metal or semiconductor. While H-terminated they all direct indirect band-gap semiconductors. carrier mobility generally lower than nanoribbon, closely related larger effective mass higher deformation potential values. Meanwhile, it found semiconducting very sensitive regulation, especially under applied compressive strain external electric field, band gap becomes smaller, favorable absorption light energy development novel optical devices.
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2023
ISSN: ['1000-3290']
DOI: https://doi.org/10.7498/aps.72.20222434