Fabrication of Thermochromic Photonic Crystal Stickers with Highly Sensitive Response for Non-open Fire Sensing

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2024-11-22 DOI:10.1021/acsami.4c13689

Aqing Tian, Chen Pan, Mingxiong Wu, Hongxi Liu, Qingwen Shi, Jiuxiao Sun, Jingxing Liang, Xiaohong Liu, Haiying Tan, Jing Jin

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Abstract

Giving Timely warnings for fire is very crucial for fire prevention and the protection of people’s lives and property. However, most current fire warning sensors give warnings above 200 °C, which are not conducive to efficient and accurate warnings. Therefore, it is important to develop high-temperature sensors that can give timely, portable warnings at low temperatures (100 to 200 °C). Herein, simple and portable nonopen flame thermochromic photonic crystal (PC) stickers were constructed using ZnS nanoparticles and polyethylene (PE) films as the main components. The structural color of the PC stickers changed due to the chain motion of PE chain, and the changement of the refractive index of the materials when heating. Thus, an early fire warning sensor (EFWS) was designed based on the structural color change of PC stickers. The EFWS can give timely and visible sensing in 0.8 s at 115 °C. The EFWS based on PC stickers can be combined with indoor surveillance cameras for nonopen fire warnings and key place monitoring (e.g., electrical equipment) in households, aircraft, electrical appliances, substations, etc.

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制作具有高灵敏度响应的热致变色光子晶体贴纸，用于非开放式火灾感应

及时发出火灾警报对于预防火灾、保护人们的生命和财产安全至关重要。然而，目前大多数火灾预警传感器发出的预警温度都在 200 °C 以上，不利于发出高效、准确的预警。因此，开发能在低温（100 至 200 °C）条件下及时发出便携式警报的高温传感器就显得尤为重要。本文以 ZnS 纳米粒子和聚乙烯（PE）薄膜为主要成分，构建了简单便携的非明火热致变色光子晶体（PC）贴纸。由于聚乙烯链的链式运动以及加热时材料折射率的变化，PC 贴纸的结构颜色发生了变化。因此，我们根据 PC 贴纸的结构颜色变化设计了一种火灾预警传感器（EFWS）。EFWS 能在 115 °C 温度下的 0.8 秒内及时发出明显的感应。基于 PC 贴纸的 EFWS 可与室内监控摄像头相结合，用于家庭、飞机、电器、变电站等非开放式火灾预警和重点场所（如电气设备）监控。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.