基于单层Be2C的高性能和低功率p频道晶体管
Xinwei Guo1, Xuemin Hu2, Shuyu Zhang1
1MIIT Key Laboratory of Advanced Display Materials and Devices, College of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China.
ACS applied materials & interfaces
|November 8, 2023
概括
研究人员探索了2D碳化物 (Be2C) 的高性能,低功耗晶体管. 这种新型材料具有出色的电子性能,为下一代电子设备铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术纳米技术
背景情况:
- 二维 (2D) 材料为场效应晶体管 (FET) 中的短通道效应和功耗消耗提供了解决方案.
- 开发用于互补集成电路的高性能 (HP) 和低功耗 (LP) p通道晶体管仍然是一个重大挑战.
研究的目的:
- 为了研究单层白碳化物 (Be2C) 的电子和弹道运输特性.
- 评估Be2C作为下一代HP和LP电子产品材料的潜力.
主要方法:
- 利用不平衡格林函数与密度函数理论相结合.
- 分析了Be2C中准平面六坐标碳的电子带结构和传输特性.
主要成果:
- 单层Be2C呈现平面反常规键和1.53 eV的直接带隙.
- 在p型Be2CHPFET中实现了2767μAμm-1的显著的电流 (离子).
- 2D Be2C FET 的设备性能超过了"国际设备和系统路线图"的要求.
结论:
- 作为具有高孔流动性的二维p轨道材料,Be2C显示出极好的潜力.
- 这些发现强调了Be2C适用于未来高性能和低功耗电子应用的适用性.
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