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矿纳米晶体的CsBr触发可逆相变,用于高级信息加密和解密

Qing Xu¹, Tianwei Zhang¹, Mengjia Liu¹

¹State Key Laboratory of Intelligent Manufacturing Equipment and Technology and School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.

ACS applied materials & interfaces

|March 21, 2024

概括

研究人员使用矿纳米晶来开发了一种新的色材料,用于安全的信息加密. 这种材料提供了出色的可逆性和稳定性,克服了先前的色方法在实际应用中的局限性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
光电学是指光电子产品.

背景情况:

矿纳米晶 (NCs) 由于其发光特性,对信息加密具有前景.
现有的基矿NCs受到有限的可逆性和被动水诱导解密的影响,阻碍了实际使用.
对于安全的信息加密和解密,需要坚固和可逆的发光材料.

研究的目的:

为了合成一种具有信息加密的增强可逆性的新型光色材料.
为了研究光发光的可逆相位转换机制.
为了证明材料的可靠性和稳定性,用于实际的加密应用.

主要方法:

通过对CsPbBr₃的HBr预处理合成发光的CsPbBr₃-HBr.
调查发光的CsPbBr₃-HBr和非发光的Cs₄PbBr₆之间的可逆相变.
使用CsBr溶液作为光发光开关的触发器,并评估50个周期的可逆性.

主要成果:

成功合成了一种具有出色可逆性 (50 个周期) 的光色材料.
HBr处理通过减少表面连接物和被动化 Br 空位来增强离子迁移.
鉴定出 CsBr 度是动态离子交换平衡的一个关键因素.
CsPbBr₃-HBr材料证明了可重现,稳定和可靠的光发光度切换.

结论:

开发的CsPbBr₃-HBr材料为信息加密提供了稳定和可逆的光发光开关.
该材料克服了色矿的局限性,可用于安全数据存储的实际应用.
这项工作在用于防伪和信息安全的发光材料领域提出了有前途的进展.

关键词:

光防伪光防伪光防伪信息的加密信息的加密.色的材料是红色的材料.矿的纳米晶体矿的纳米晶体可逆相位过渡的可逆相位过渡.

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