人工晶体学报2025，Vol.54Issue(5)：825-831,7.DOI:10.16553/j.cnki.issn1000-985x.2024.0291
二维BC6N/BN横向异质结的电学输运性质研究
Electrical Transport Properties of Two-Dimensional BC6N/BN Lateral Heterostructure
摘要
Abstract
The two-dimensional heterostructures have outstanding physical and chemical properties that make them promising applications in nanoelectronic devices.A novel BC6N/BN lateral heterostructure was constructed,and the structural stability,electronic structure,conductivity and volt-ampere characteristics of BC6N/BN lateral heterostructure were investigated by the first-principles combined with the non-equilibrium Green's function.The BC6N/BN lateral heterostructure not only exhibits dynamic stability but also possesses a direct bandgap of 2.01 eV,static potential difference generated at heterojunction interface,electrons and holes form an electrical barrier at the interface.Compared to the BC6N and BN monolayers,the conductivity of BC6N/BN lateral heterostructure is significantly reduced and exhibits strong anisotropy.The volt-ampere characteristics of the BC6N/BN lateral heterostructure show that almost no current is generated in the voltage range of 0 to 2.5 V.After the forward voltage exceeds 3 V,the current shows a linear increase trend;during the process of increasing the reverse voltage from 3 V to 5.5 V,there is only a weak current.When the reverse voltage exceeds 5.5 V,the current increases nonlinearly.Therefore,the BC6N/BN lateral heterostructure has anisotropic conductivity and unidirectional conductivity characteristics,which can provide the important theoretical basis for the design and preparation of nanoelectronics devices.关键词
横向异质结/BC6N/BN/电学输运性质/电子结构/第一性原理Key words
lateral heterostructure/BC6N/BN/electrical transport property/electronic structure/first-principle分类
物理学引用本文复制引用
解忧,肖潇飒,姜宁宁,张涛..二维BC6N/BN横向异质结的电学输运性质研究[J].人工晶体学报,2025,54(5):825-831,7.基金项目
国家自然科学基金(52474252,12474468) （52474252,12474468）
陕西省自然科学基金(2023JCYB014,2025JC-YBMS-065) （2023JCYB014,2025JC-YBMS-065）
