在一个具有高耐久性的二维氧化物装置中进行Subattojoule电气切换
Jiahao Shen1, Feiyu Tang1, Changying Xiong1
1Wuhan National Laboratory for Optoelectronics, School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074, China.
Nano letters
|January 30, 2025
概括
本研究引入了一个新的2D TaSe2氧化物值开关用于神经形态计算,实现低压操作和超低能耗. 该设备克服了用于先进AI应用的2D材料的耐久性限制.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 计算机科学 计算机科学
背景情况:
- 人工智能和物联网推动了对低功耗微电子的需求.
- 二维 (2D) 电气开关材料对于神经形态计算至关重要.
- 现有的2D设备存在高泄漏电流和低耐久性,限制了它们的应用.
研究的目的:
- 开发一种新的垂直横杆结构导电桥值开关装置.
- 为了解决2D材料中高泄漏电流和低耐久性的局限性.
- 为了提高神经形态计算应用的性能.
主要方法:
- 制造具有垂直横杆结构的2D TaSe2 氧化物装置.
- 利用自然空气氧化,创建一个TaSeO功能层.
- 使用传输电子显微镜 (TEM) 进行表征,以了解切换机制.
主要成果:
- 在低工作电压 (<0.8V) 的情况下,实现了稳定的电开关行为.
- 显示了一个的开启斜率 (<9.4 mV十年-1).
- 呈现出非常低的能耗 (0.142 aJ) 和高耐久性 (>10^8).
结论:
- 开发的TaSe2氧化物装置克服了2D材料的耐久性问题.
- 该设备显示了下一代神经形态计算的重大前景.
- Ag2Se纳米晶岛在导电丝的形成和设备增强中发挥着关键作用.
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