螺旋纳米纤维光电突触装置用于人工视觉神经系统
Longlong Jiang1,2, Lu Yang3, Xiaocheng Wu1,2
1National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Optoelectronic Technology, Hefei University of Technology, Hefei 230009, P. R. China.
Nano letters
|August 14, 2023
概括
研究人员为先进的光电子突触器件开发了螺旋聚合物. 这些新型螺旋式纳米纤维表现出增强的深紫外线 (DUV) 光反应,并记录了突触事件的低能耗.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 纳米技术 纳米技术
背景情况:
- 生物分子启发的螺旋结构提供了独特的功能性质.
- 螺旋型聚合物正在获得先进应用的关注.
- 合成了多3-基基基化 (P3HT-b-PPI) kopo 聚合物.
研究的目的:
- 为了准备具有螺旋式纳米纤维结构的P3HT-b-PPI共聚物.
- 为了研究这些螺旋聚合物的光电子特性和突触装置性能.
- 探索图像加密和有害光线检测中的应用.
主要方法:
- 使用单活聚合法合成P3HT-b-PPI共聚合物.
- 螺旋式纳米纤维结构在P3HT80-b-PPI30膜中进行了表征.
- 测量了光电子特性,载体衰变时间和每次突触事件的能量消耗.
- 图像加密/解密和光感应器神经通路的构建被证明.
主要成果:
- P3HT80-b-PPI30膜呈现出螺旋式纳米纤维结构.
- 这些设备显示了从可见到深紫外线 (DUV) 光的扩大光谱响应.
- 在DUV刺激后,载体衰变时间增加了5倍.
- 在DUV光刺激中,每个突触事件的能量消耗达到1.44fJ,创纪录的低.
- 证明了成功的图像加密/解密以及用于检测有害光线的光感应器神经通路.
结论:
- 该研究提出了一种有效的战略,用于开发使用螺旋聚合物的新型光电子突触器件.
- 合成的螺旋式P3HT-b-PPI共聚物表现出优异的光电子性能和低能耗.
- 这些发现为先进的突触器件铺平了道路,在信息处理和传感方面有应用.
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