ABSTRACT

Vacancy defects and size variations are inevitable in the preparation of arsenene nanosheets, and the effect of size and random distribution of vacancy defects on the buckling properties of arsenene nanosheets is not negligible. Previous research methods, such as molecular dynamics, have limitations in terms of computational cost when investigating this aspect. In this paper, a model of arsenene nanosheets is developed based on the finite element method and the buckling properties of arsenene nanosheets are investigated under various operating conditions such as different sizes, different orientations and the presence of vacancy defects. The results show that the buckling performance of arsenene nanosheets is enhanced by smaller size. In contrast, the presence of vacancy defects leads to the destruction of the original structure of arsenene nanosheets, resulting in a decrease in their buckling properties. This study provides an important contribution to the investigation of the buckling properties of arsenene nanosheets.

摘要

砷烯纳米片的制备过程中不可避免地存在空位缺陷和尺寸变化，空位缺陷的尺寸和随机分布对砷烯纳米片屈曲性能的影响不可忽略。以前的研究方法，如分子动力学，在研究这方面时在计算成本方面存在局限性。在本文中，基于有限元方法开发了砷烯纳米片模型，并研究了砷烯纳米片在不同尺寸、不同取向和存在空位缺陷等各种操作条件下的屈曲特性。结果表明，砷烯纳米片的屈曲性能因较小的尺寸而增强。相比之下，空位缺陷的存在导致砷烯纳米片原有结构的破坏，导致其屈曲性能下降。该研究为研究砷烯纳米片的屈曲特性做出了重要贡献。