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一个单晶反三氧化物介电器用于2D场效应晶体管

Dainan Wang¹, Weikang Dong¹, Ping Wang¹

¹Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, 100081, China.

Small (Weinheim an der Bergstrasse, Germany)

|November 6, 2024

概括

研究人员开发了新的二维介电材料,特别是α-三氧化物 (α-Sb2O3) 纳米片,用于先进的场效应晶体管. 这些材料可以在下一代微电子产品中实现更高的性能.

科学领域:

材料科学材料科学材料科学
纳米科学是一个纳米科学.
微电子工程微电子工程

背景情况:

二维 (2D) 材料对于在半导体技术中维持摩尔定律至关重要.
场效应晶体管 (FET) 广泛使用二维半导体作为通道材料.
下一代集成设备需要带宽隙和更高的介电常数等增强性质的门介电.

研究的目的:

合成和描述新型绝缘α-Sb2O3单晶纳米板,用于作为门介电材料.
研究这些二维介电与二维半导体通道的集成,例如MoS2.2.
制造和评估结合新介电材料的双门FET的性能.

主要方法:

一步化学蒸汽沉积 (CVD) 用于合成α-Sb2O3单晶纳米片.
介电性质的表征,包括介电常数和带隙.
使用α-Sb2O3纳米板作为MoS2通道上的顶端门介电体制造双门FET.
制造FET的性能测试,重点是切换比率.

主要成果:

通过单阶段CVD成功合成了绝缘α-Sb2O3单晶纳米板.
α-Sb2O3具有很高的介电常数 (11.8) 和宽带间隙 (3.78 eV).
在α-Sb2O3和MoS2之间实现了原子光滑的接口.
制造的双门FET显示了超过108.8的切换比率.
使用二维介电材料成功操纵FET.

结论:

α-Sb2O3单晶纳米板是先进电子设备的有希望的二维介电材料.
这些二维介电物的集成显著提高了FET的性能.
这项工作为优化二维设备和创新微电子技术提供了一条途径.

关键词:

2D场效应晶体管的二维效应.两维材料是二维材料.化学蒸气沉积化学蒸气沉积电介介介质的电压电路.α-Sb2O3 的时间.

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