一个完全二维的Fe-FET视网形传感器,基于新的介电门In2Se3-O
Xuhong Li1,2, Xiaoqing Chen2, Wenjie Deng2
1School of Physics, Beihang University, Beijing 100191, China. fmliu@buaa.edu.cn.
Nanoscale
|June 15, 2023
概括
研究人员开发了一种新的二维介电材料,用于二维铁电场效应晶体管 (Fe-FET). 这一突破使得高性能,全2D光探测器能够实现人工神经网络的集成计算能力.
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) 铁电场效应晶体管 (Fe-FETs) 对存储器和神经形态计算等先进电子技术具有前景.
- 当前的二维铁电材料 (例如,α-In2Se3) 需要与3D介电材料集成,导致设备兼容性问题.
- 需要与半导体制造相兼容的纯二维门介电材料.
研究的目的:
- 为所有2DFe-FET开发一种新的2D介电材料.
- 为了解决现有的二维铁电半导体的局限性.
- 创建一个具有集成功能的高性能光电探测器.
主要方法:
- 利用氧气等离子处理合成了一种新的2D门介电材料.
- 使用新的介电和α-In2Se3.3.制造了一种全2D Fe-FET 光探测器.
- 描述了介电性质 (等效氧化物厚度,泄漏电流) 和设备性能 (开/关比,检测能力).
主要成果:
- 新的2D介电器具有相当的氧化物厚度<0.15 nm和低泄漏电流 (<2 × 10^-5 A cm^-2 在1 V).
- 制造的全二维Fe-FET光探测器实现了高开/关比约10^5和检测能力>10^13斯.
- 该设备展示了集成的感知,记忆和计算特征.
结论:
- 开发的二维介电材料与补充的金属氧化物半导体工艺兼容.
- 全2D Fe-FET 光探测器显示出卓越的性能和多功能功能.
- 这项技术有可能用于用于视觉识别的人工神经网络的应用.
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