Transparent and Breathable Ion Gel‐Based Sensors toward Multimodal Sensing Ability
Transparent and Breathable Ion Gel‐Based Sensors toward Multimodal Sensing Ability
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DOI：
10.1002/admt.202200209
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发表时间：
2022-06
影响因子：
6.8
通讯作者：
Y. Isano;Hajime Fujita;Koki Murakami;Sijie Ni;Yuta Kurotaki;T. Takano;Yutaka Isoda;R. Matsuda;Fumika Nakamura;Yuuki Nishitai;Nyamjargal Ochirkhuyag;Kota Inoue;Hiroki Kawakami;Yusuke Okubo;K. Ueno;T. Fujie;Hiroki Ota
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文献类型：
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作者：
Y. Isano;Hajime Fujita;Koki Murakami;Sijie Ni;Yuta Kurotaki;T. Takano;Yutaka Isoda;R. Matsuda;Fumika Nakamura;Yuuki Nishitai;Nyamjargal Ochirkhuyag;Kota Inoue;Hiroki Kawakami;Yusuke Okubo;K. Ueno;T. Fujie;Hiroki Ota
聚合物薄膜传感器由于其高度透明、柔性和透气的特性，在各种应用中引起了相当大的关注。然而，基于纳米材料的传统薄膜传感器在传感目标和功能的可扩展性方面的选择性较差。因此，需要一种新的方法来实现具有简单加工性的更高选择性。这项研究提出了使用离子凝胶作为传感材料的高度透明，超柔性和透气的聚合物薄膜传感器;传感器表现出选择性检测的能力。特别是，这项研究证明了温度和湿度的同时和独立的传感作为概念的证明。传感器采用简单的喷涂方法在硅橡胶薄膜（厚度约为25 µm）上制造。由于它们的薄膜形状，传感器表现出超过80%的可见光透射率和比人体经皮水分损失更高的透气性。使用含有两种不同离子液体（IL）的凝胶，温度和湿度分别以15.4% °C-1和2.0%/相对湿度百分比的高灵敏度同时检测。结果表明，离子液体的易修改性质使超柔性和透明传感器的制造成为可能，这些传感器可以使用简单的方法检测各种物体。
Polymer thin‐film sensors have attracted considerable attention in various applications owing to their highly transparent, flexible, and gas‐permeable features. However, conventional thin‐film sensors based on nanomaterials suffer from poor selectivity in sensing targets and scalability of functions. Therefore, a new approach is required for achieving higher selectivity with simple processibility. This study proposes highly transparent, ultra‐flexible, and gas‐permeable polymer thin‐film sensors using ion gels as the sensing material; the sensors demonstrated the capacity for selective detections. Particularly, this study demonstrates simultaneous and independent sensing of temperature and humidity as a proof of concept. The sensors are fabricated using a simple spray coating method on a thin silicone rubber film (≈25 µm thickness). Owing to their thin‐film shape, the sensors exhibit more than 80% visible light transmittance and a higher gas permeability than the human transepidermal water loss. The temperature and humidity are simultaneously detected with a high sensitivity of 15.4% °C–1 and 2.0% per percentage of the relative humidity, respectively, using gels containing two different ionic liquids (ILs). The results suggest that the easily modifiable nature of ILs enables the fabrication of ultra‐flexible and transparent sensors that can detect various objects using a simple method.