Zn/Sn 调节可变电阻切换和高级神经形态函数的凯斯特化突触记忆器
Fengxia Yang1, Hao Sun1, Xiang Zhang1
1Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China.
The journal of physical chemistry letters
|October 15, 2025
概括
在铜锡硫化 (CZTSSe) 记忆器中优化 Zn/Sn 比率显著提高了神经形态计算能力. 这一进步使光电子设备中的大脑启发的功能更有效.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 神经形态计算是一种神经形态计算.
背景情况:
- 对材料属性的精确调制对于下一代神经形态计算系统至关重要.
- 在光电子设备中开发先进的脑启发功能仍然是一个挑战.
研究的目的:
- 调查Zn/Sn比在铜锡硫化 (CZTSSe) 光电子记忆器中的作用.
- 探索这种比率对电阻切换,突触功能模拟和类似大脑的应用的影响.
主要方法:
- 用不同的Zn/Sn比率制造和表征CZTSSe记忆器.
- 在电气和光刺激下对电阻切换行为的评估.
- 评估突触可塑性仿真和先进的应用,如信号加密和图像消噪.
主要成果:
- 1.1的Zn/Sn比率大大提高了开/关比率到1027,并降低了设置/重置电压.
- 该设备有效模拟了各种生物突触行为 (LTP/LTD,STM/LTM,SIDP,SDDP,SRDP) 和学习过程.
- 高安全的信号加密/解密和图像消噪是通过利用NIR调制的导电量和Zn/Sn依赖特征来实现的.
结论:
- Zn/Sn比率是调节CZTSSe记忆器中电阻切换和突触功能的关键因素.
- CZTSSe材料显示出开发高性能神经形光电子突触器件的巨大潜力.
- 这项研究为先进的大脑启发的计算应用铺平了道路.
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