Flexible, Cuttable, and Self-Waterproof Bending Strain Sensors Using Microcracked Gold [email protected] Substrate,ACS Applied Materials & Interfaces

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Flexible, Cuttable, and Self-Waterproof Bending Strain Sensors Using Microcracked Gold [email protected] Substrate
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-01-20 00:00:00 , DOI: 10.1021/acsami.6b12991
Xinqin Liao ₁ , Zheng Zhang ₁ , Qijie Liang ₁ , Qingliang Liao ₁ , Yue Zhang _{1,

2}

Affiliation

Rapid advances in functional sensing electronics place tremendous demands on innovation toward creative uses of versatile advanced materials and effective designs of device structures. Here, we first report a feasible and effective fabrication strategy to integrate commercial abrasive papers with microcracked gold (Au) nanofilms to construct cuttable and self-waterproof crack-based resistive bending strain sensors. Via introducing surface microstructures, the sensitivities of the bending strain sensors are greatly enhanced by 27 times than that of the sensors without surface microstructures, putting forward an alternative suggestion for other flexible electronics to improve their performances. Besides, the bending strain sensors also endow rapid response and relaxation time of 20 ms and ultrahigh stability of >18 000 strain loading–unloading cycles in conjunction with flexibility and robustness. In addition, the concepts of cuttability and self-waterproofness (attain and even surpass IPX-7) of the bending strain sensors have been demonstrated. Because of the distinctive sensing properties, flexibility, cuttability, and self-waterproofness, the bending strain sensors are attractive and promising for wearable electronic devices and smart health monitoring system.

中文翻译：

使用微裂纹金的柔性，可切割且自防水的弯曲应变传感器[受电子邮件保护]基板

功能感测电子学的飞速发展对创新地使用多功能先进材料和有效设计设备结构提出了巨大的要求。在这里，我们首先报告一种可行且有效的制造策略，以将商业砂纸与微裂纹金（Au）纳米膜集成在一起，以构建可切割且自防水的基于裂纹的电阻弯曲应变传感器。通过引入表面微结构，弯曲应变传感器的灵敏度比不具有表面微结构的传感器的灵敏度大大提高了27倍，从而为其他柔性电子器件提出了改善其性能的替代建议。此外，弯曲应变传感器还具有20 ms的快速响应和松弛时间以及>>的超高稳定性。18 000个应变加载-卸载循环以及灵活性和坚固性。此外，还演示了弯曲应变传感器的可切割性和自防水性（达到甚至超过IPX-7）的概念。由于其独特的感测特性，柔韧性，可切割性和自防水性，弯曲应变传感器对于可穿戴电子设备和智能健康监控系统具有吸引力，并很有前景。

更新日期：2017-01-20

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