可穿戴室温气体传感器用固有柔性Sn1-xSbxO2固溶体纳米纤维驱动等离子体激元。

IF 9.1 1区 化学 Q1 CHEMISTRY, ANALYTICAL
Rui Tang,Xiaowei Li,Yu Liu,Wanying Cheng,Haipeng Dong,Mengjie Guan,Haoqian Luo,Tong Liu,Xinghua Li,Changlu Shao,Yichun Liu
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引用次数: 0

摘要

物联网技术的快速发展推动了对可穿戴和便携式气体传感器的巨大需求。然而,无机阻性金属氧化物半导体(MOSs)固有的脆性和刚性限制了其在可穿戴传感器应用中的灵活性。在这里,我们首次提出了一种新的方法,通过使用静电纺Sn1-xSbxO2固溶体纳米纤维开发固有柔性气体传感器来解决这些限制。自支撑纳米纤维膜表现出显著的固有柔韧性,这可归因于其超细的晶粒尺寸和杂化非晶结构,有效地减轻了Sn1-xSbxO2纳米纤维内部宏观裂纹的形成。此外,这些Sn1-xSbxO2固溶体纳米纤维在可见光光谱中表现出明显的表面等离子体共振吸收,使可见光驱动的室温检测二氧化氮(NO2)达到十亿分之一(ppb)的水平,这增强了它们在可穿戴设备中的适用性。此外,独特的纳米纤维网络结构显著提高了透气性,从而促进了气敏反应,同时提高了用户的舒适度。这些发现为可穿戴实时气体监测技术的发展铺平了道路,解决了气体传感领域的关键挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Inherently Flexible Sn1-xSbxO2 Solid Solution Nanofibers with Light-Driven Plasmon for Wearable Room-Temperature Gas Sensors.
The rapid advancement of the Internet of Things technology has driven a significant demand for wearable and portable gas sensors. However, the inherent brittleness and rigidity of inorganic resistive metal oxide semiconductors (MOSs) limit their flexibility in wearable sensor applications. Herein, for the first time, we present a novel approach to address these limitations by developing inherently flexible gas sensors using electrospun Sn1-xSbxO2 solid solution nanofibers. The self-supported nanofiber membranes exhibit remarkable inherent flexibility, which can be attributed to their ultrafine grain size and hybrid amorphous-crystalline structure that effectively mitigates the formation of macroscopic cracks within the Sn1-xSbxO2 nanofibers. Furthermore, these Sn1-xSbxO2 solid solution nanofibers demonstrate pronounced surface plasmon resonance absorption in the visible-light spectrum, enabling visible-light-driven room-temperature detection of nitrogen dioxide (NO2) at parts-per-billion (ppb) levels, which enhances their applicability for wearable devices. Additionally, the unique nanofiber network structure significantly improves air permeability, thereby facilitating gas sensing reactions while enhancing user comfort. These findings pave the way for the development of wearable real-time gas monitoring technologies, addressing critical challenges within the gas sensing field.
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来源期刊
ACS Sensors
ACS Sensors Chemical Engineering-Bioengineering
CiteScore
14.50
自引率
3.40%
发文量
372
期刊介绍: ACS Sensors is a peer-reviewed research journal that focuses on the dissemination of new and original knowledge in the field of sensor science, particularly those that selectively sense chemical or biological species or processes. The journal covers a broad range of topics, including but not limited to biosensors, chemical sensors, gas sensors, intracellular sensors, single molecule sensors, cell chips, and microfluidic devices. It aims to publish articles that address conceptual advances in sensing technology applicable to various types of analytes or application papers that report on the use of existing sensing concepts in new ways or for new analytes.
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