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arXiv 2004.04434cond-mat.mes-hall
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用于超规模场效应晶体管的2-D材料:从头算显微镜下的数百种候选材料

2-D materials for ultra-scaled field-effect transistors: hundred candidates under the ab initio microscope

Cedric Klinkert, Áron Szabó, Christian Stieger, Davide Campi, Nicola Marzari, Mathieu Luisier

摘要:

由于其独特的性能,单层2-D材料似乎是将摩尔比例定律扩展到目前制造的硅FinFET之外的优秀候选者。然而,已知的2-D半导体组件,基本上是过渡金属二硫属化物,仍然远远不能提供预期的性能。基于最近的一项理论研究,预测存在超过1,800种可剥离的2-D材料,我们在这里调查了100种最有前途的逻辑应用竞争者。从第一性原理出发,结合密度泛函理论和先进的量子输运计算,模拟了它们的“电流与电压”特性。n型和p型配置被认为是,栅极长度范围从15到5纳米。从这一前所未有的电子材料集合中,我们确定了13种化合物,其电子和空穴电流可能远高于未来的Si FinFET。由此产生的数据库广泛扩展了2-D晶体管的设计空间,并为材料和器件工程界提供了原始指南。

英文摘要:

Thanks to their unique properties single-layer 2-D materials appear as excellent candidates to extend Moore's scaling law beyond the currently manufactured silicon FinFETs. However, the known 2-D semiconducting components, essentially transition metal dichalcogenides, are still far from delivering the expected performance. Based on a recent theoretical study that predicts the existence of more than 1,800 exfoliable 2-D materials, we investigate here the 100 most promising contenders for logic applications. Their "current vs. voltage" characteristics are simulated from first-principles, combining density-functional theory and advanced quantum transport calculations. Both n- and p-type configurations are considered, with gate lengths ranging from 15 down to 5 nm. From this unprecedented collection of electronic materials, we identify 13 compounds with electron and hole currents potentially much higher than in future Si FinFETs. The resulting database widely expands the design space of 2-D transistors and provides original guidelines to the materials and device engineering community.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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