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Wearable Inorganic Oxide Chemiresistor Based on Flexible Al2O3-Stabilized ZrO2 Ceramic Sponge Substrate for NO2 Sensing
ACS Sensors ( IF 8.2 ) Pub Date : 2024-08-31 , DOI: 10.1021/acssensors.4c01311 Xiaowei Li 1 , Mengjie Guan 1 , Yu Liu 1 , Haipeng Dong 1 , Xinghua Li 1 , Changlu Shao 1 , Dongxiao Lu 2 , Yichun Liu 1
ACS Sensors ( IF 8.2 ) Pub Date : 2024-08-31 , DOI: 10.1021/acssensors.4c01311 Xiaowei Li 1 , Mengjie Guan 1 , Yu Liu 1 , Haipeng Dong 1 , Xinghua Li 1 , Changlu Shao 1 , Dongxiao Lu 2 , Yichun Liu 1
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Wearable gas sensors, possessing the advantages of high sensitivity, excellent flexibility, high permeability, low weight, and workability at ambient conditions, hold great promise for real-time health monitoring and early warnings of poisonous gases. However, obtaining high-performance wearable gas sensors utilizing the current well-developed inorganic semiconductor oxide sensing materials is still very limited due to their fragile and rigid nature. Herein, a newly designed wearable gas sensor based on an all-inorganic ASZ (Al2O3-stabilized ZrO2)/ZnO/SnO2 nanofibers is introduced for the first time. The flexible ASZ ceramic sponge substrate (with a Young’s modulus of 4.15 MPa) and ultrathin ZnO/SnO2 sensing layer endow the wearable gas sensor with promising properties such as super flexibility (with a bending radius of 5 mm), high gas permeability, and low weight. Furthermore, driven by UV light irradiation, this all-inorganic wearable sensor also demonstrates a stable NO2 sensing response under different bending states at room temperature, which enables the gas sensor to be more compatible with wearable sensing applications. This work offers a general method to achieve a high-performance wearable gas sensor based on inorganic materials and provides new insights into their potential in wearable gas-sensing applications.
中文翻译：
基于柔性 Al2O3 稳定 ZrO2 陶瓷海绵基底的可穿戴无机氧化物化学电阻器，用于 NO2 传感
可穿戴气体传感器具有灵敏度高、灵活性好、渗透率高、重量轻、可在环境条件下工作等优点，在实时健康监测和有毒气体预警方面具有广阔的前景。然而，由于其脆弱和刚性的性质，利用当前成熟的无机半导体氧化物传感材料获得高性能可穿戴气体传感器仍然非常有限。在此，首次推出了一种基于全无机ASZ（Al 2 O 3稳定ZrO 2 ）/ZnO/SnO 2纳米纤维的新设计的可穿戴气体传感器。柔性ASZ陶瓷海绵基底（杨氏模量为4.15 MPa）和超薄ZnO/SnO 2传感层赋予可穿戴气体传感器超柔韧性（弯曲半径为5 mm）、高透气性、重量轻。此外，在紫外光照射的驱动下，这种全无机可穿戴传感器还在室温下不同弯曲状态下表现出稳定的NO 2传感响应，这使得气体传感器能够更兼容可穿戴传感应用。这项工作提供了一种实现基于无机材料的高性能可穿戴气体传感器的通用方法，并为其在可穿戴气体传感应用中的潜力提供了新的见解。
更新日期：2024-08-31
中文翻译：
基于柔性 Al2O3 稳定 ZrO2 陶瓷海绵基底的可穿戴无机氧化物化学电阻器，用于 NO2 传感
可穿戴气体传感器具有灵敏度高、灵活性好、渗透率高、重量轻、可在环境条件下工作等优点，在实时健康监测和有毒气体预警方面具有广阔的前景。然而，由于其脆弱和刚性的性质，利用当前成熟的无机半导体氧化物传感材料获得高性能可穿戴气体传感器仍然非常有限。在此，首次推出了一种基于全无机ASZ（Al 2 O 3稳定ZrO 2 ）/ZnO/SnO 2纳米纤维的新设计的可穿戴气体传感器。柔性ASZ陶瓷海绵基底（杨氏模量为4.15 MPa）和超薄ZnO/SnO 2传感层赋予可穿戴气体传感器超柔韧性（弯曲半径为5 mm）、高透气性、重量轻。此外，在紫外光照射的驱动下，这种全无机可穿戴传感器还在室温下不同弯曲状态下表现出稳定的NO 2传感响应，这使得气体传感器能够更兼容可穿戴传感应用。这项工作提供了一种实现基于无机材料的高性能可穿戴气体传感器的通用方法，并为其在可穿戴气体传感应用中的潜力提供了新的见解。
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