基于2D InSe/h-BN/GaSe异构的可调节的非易失性记忆,以实现潜在的多功能性
Xiang Gong1, Yueying Zhou1, Jiangnan Xia1
1Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, P.R. China. ytian@hnu.edu.cn.
Nanoscale
|August 24, 2023
概括
这项研究证明了使用2D InSe/h-BN/GaSe异构结构的高性能,大气稳定的浮式门内存. 这种新型设备提供了可调节的存储容量和集成2D内存应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 电子 电子 电子 电子 电子 电子 电子
背景情况:
- 二维 (2D) 范德瓦尔斯 (vdW) 异构结构对于下一代信息技术至关重要.
- 浮式门内存提供非易失性数据存储能力.
- 由于材料质量和接口挑战,2D InSe/h-BN/GaSe异构结构在可调节的非挥发性内存应用中未得到充分探索.
研究的目的:
- 为了证明基于2D InSe/h-BN/GaSe异构结构的高性能,大气稳定的浮式门内存.
- 通过优化h-BN层厚度来研究内存性能的可调性.
- 探索使用这些二维存储器设备模拟生物突触行为的潜力.
主要方法:
- 使用2D InSe/h-BN/GaSe异构结构制造一个浮式门内存设备.
- 设备的电气特性,包括开/关电流比和灭火比.
- 优化绝缘h-BN层厚度以调整存储性能.
- 探索不同的设备配置,以验证工作机制.
- 在原型设备上模拟生物突触行为.
主要成果:
- 实现了大约10^5的大型开/关电流比率和大约10^3.3的灭火比率.
- 估计最大存储容量为5.1 × 10^12厘米^-2.
- 证明了通过调整h-BN层厚度来调整存储性能.
- 在同一个设备上成功模拟了生物突触行为.
- 呈现出极好的大气稳定性.
结论:
- 开发的2D InSe/h-BN/GaSe浮式门内存表现出高性能和大气稳定性.
- 通过控制h-BN介电层厚度,可以有效调整设备的存储特性.
- 这项工作为具有潜在多功能性的集成二维内存设备铺平了道路,包括神经形态计算应用程序.
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