用于多功能温度和压力传感的透明纳米晶体玻璃复合纤维

IF 6.2 3区 综合性期刊 Q1 Multidisciplinary
Qinpeng Chen , Qiwen Pan , Shiliang Kang , Zhenlu Cai , Shengda Ye , Puxian Xiong , Zhongmin Yang , Jianrong Qiu , Guoping Dong
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引用次数: 0

摘要

随着人们对紧凑型集成设备的追求,对能够单独或同时对各种物理参数做出快速、准确响应的多功能传感器的需求日益增长。荧光光纤传感器具有稳定性强、重量轻、几何结构紧凑等优点,可通过监测荧光参数实现实时和无创信号检测。尽管荧光传感器取得了长足的进步,但在单根光纤中实现多功能传感仍具有挑战性。为了解决这个问题,在本研究中,我们提出了一种自下而上的策略,通过将具有温度和压力荧光响应的功能纳米晶体纳入透明玻璃基体,设计和制造热拉伸多功能光纤传感器。为了生成所需的纳米晶体玻璃复合材料(NGC)纤维,我们合理地设计了荧光激活剂、掺入的纳米晶体、玻璃芯材料和包层基质。利用荧光强度比技术,展示了一种对温度和压力具有双功能响应的自校准光纤传感器。在温度传感方面,NGC 光纤在高达 573 K 的温度下会发出随温度变化的近红外辐射,最大绝对灵敏度为 0.019 K-1。在可见光谱区,还实现了随压力变化的上转换发射,线性斜率为-0.065。多功能 NGC 纤维传感器的成功展示为多功能传感器的新范例提供了一条有效途径,也为未来具有新型磁性、光学和机械特性组合的混合纤维提供了一种通用策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Transparent nanocrystal-in-glass composite fibers for multifunctional temperature and pressure sensing

Transparent nanocrystal-in-glass composite fibers for multifunctional temperature and pressure sensing

The pursuit of compact and integrated devices has stimulated a growing demand for multifunctional sensors with rapid and accurate responses to various physical parameters, either separately or simultaneously. Fluorescent fiber sensors have the advantages of robust stability, light weight, and compact geometry, enabling real-time and noninvasive signal detection by monitoring the fluorescence parameters. Despite substantial progress in fluorescence sensors, achieving multifunctional sensing in a single optical fiber remains challenging. To solve this problem, in this study, we present a bottom-up strategy to design and fabricate thermally drawn multifunctional fiber sensors by incorporating functional nanocrystals with temperature and pressure fluorescence responses into a transparent glass matrix. To generate the desired nanocrystal-in-glass composite (NGC) fiber, the fluorescent activators, incorporated nanocrystals, glassy core materials, and cladding matrix are rationally designed. Utilizing the fluorescence intensity ratio technique, a self-calibrated fiber sensor is demonstrated, with a bi-functional response to temperature and pressure. For temperature sensing, the NGC fiber exhibits temperature-dependent near-infrared emission at temperatures up to 573 K with a maximum absolute sensitivity of 0.019 K−1. A pressure-dependent upconversion emission is also realized in the visible spectral region, with a linear slope of -0.065. The successful demonstration of multifunctional NGC fiber sensors provides an efficient pathway for new paradigms of multifunctional sensors as well as a versatile strategy for future hybrid fibers with novel combinations of magnetic, optical, and mechanical properties.

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来源期刊
Fundamental Research
Fundamental Research Multidisciplinary-Multidisciplinary
CiteScore
4.00
自引率
1.60%
发文量
294
审稿时长
79 days
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