明亮而稳定的防伪设备具有独立的随机过程,覆盖多个长度尺度
Junfang Zhang1,2,3, Adam Creamer1,2,3, Kai Xie1,2,3
1Department of Materials, Department of Bioengineering, Institute of Biomedical Engineering Imperial College London, London, UK.
Nature communications
|January 8, 2025
概括
新的物理非克隆功能 (PUF) 使用半导体聚合物纳米粒子 (SPN) 提高安全性. 这些多尺度PUF为下一代设备提供了强大的,可访问的防伪解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 安全工程安全工程.
背景情况:
- 物理非克隆功能 (PUF) 对防伪至关重要,但当前的单流程设备存在局限性.
- 现有的PUF可能具有比理论预测更低的实际编码能力,并且可能是脆弱的.
- 全球都认识到需要更强大,更可靠的防伪技术.
研究的目的:
- 开发具有增强安全功能的新型随机PUF设备.
- 通过结合多尺度设计原则,克服当前PUF技术的局限性.
- 创建可访问和高度弹性的反假冒解决方案.
主要方法:
- 将半导体聚合物纳米颗粒 (SPN) 作为光标记剂纳入PUF设备中.
- 具有纳米,微观和宏观特征的PUF的设计.
- 在光电阻体内嵌入SPN,以创建多个尺度的物理不可克隆的功能.
- 使用深度学习模型进行PUF分析和绩效评估.
主要成果:
- 开发了具有跨多个长度尺度 (纳米,微,宏) 的特征的PUF.
- SPNs表现出高亮度,光稳定性和紫外线弹性,表现优于现有的标签.
- 通过深度学习分析的多尺度PUF显示出近乎理想的性能.
- 为一般终端用户实现了高安全性和可访问性.
结论:
- 结合SPN的新型多尺度PUF设备在防伪技术方面取得了重大进展.
- 这些PUF为下一代安全应用提供了强大,高性能和可访问的解决方案.
- 集成先进材料和深度学习为未来的安全创新提供了一个有希望的战略.
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