Performance Optimization of Ionic Polymer Sensors through Characteristic Regulation of Chemically Prepared Interfacial Electrodes.
Performance Optimization of Ionic Polymer Sensors through Characteristic Regulation of Chemically Prepared Interfacial Electrodes.
复制标题
通过化学制备的界面电极的特性调控实现离子聚合物传感器的性能优化
DOI：
10.1021/acsami.3c14918
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发表时间：
2023-12
影响因子：
9.5
通讯作者：
Gangqiang Tang;Xin Zhao;Y. Ji;Dong Mei;Chun Zhao;Zirong Tang;Jie Ru;Lijie Li;Yanjie Wang
中科院分区：
文献类型：
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作者：
Gangqiang Tang;Xin Zhao;Y. Ji;Dong Mei;Chun Zhao;Zirong Tang;Jie Ru;Lijie Li;Yanjie Wang
离子聚合物传感器在健康监测、环境感知、人机交互等方面具有广阔的应用前景。由于双电层（EDL）面积的差异，采用化学方法制备电极的IPS性能普遍上级采用物理方法制备电极的IPS，但化学方法制备的电极特性对IPS性能的影响尚未得到揭示。因此，本文研究了化学制备电极特性对IPS性能的影响，并通过电极特性调控实现了IPS性能的优化。通过控制基体表面粗糙度、浸渍还原电镀（IRP）周期和电镀（EP）时间，分别研究了不同电极界面粗糙度、电极穿透深度和表面电阻的IPS样品的传感性能。实验结果表明，增加电极界面粗糙度、电极穿透深度和降低表面电阻可以提高IPS的响应电压。此外，我们已经证明，IPS的传感性能是由其固有的电容特性。通过对电极进行粗化、增加IRP循环次数和EP时间等耦合电极特性调控，得到了高性能的IPS，其响应幅度提高了237.8%。所获得的高性能传感器已应用于人体运动检测，具有良好的潜力，开发高稳定性的生理活动监测可穿戴设备。
Ionic polymer sensors (IPSs) have broad application prospects in health monitoring, environmental perception, and human-computer interaction. The performance of IPSs with chemically prepared electrodes is generally superior to that with physically prepared electrodes due to the area difference of the electric double layer (EDL), but the effects of the electrode characteristics prepared by chemical methods on the performance of IPSs have not been revealed. Therefore, in this paper, we studied the impact of the characteristics of chemically prepared electrodes on the performance of IPSs and realized the performance optimization of IPSs through electrode characteristic regulation. By controlling the matrix surface roughening, immersion reduction plating (IRP) cycles, and electroplating (EP) time, the sensing performances of IPS samples with different electrode interface roughnesses, electrode penetration depths, and surface resistances were investigated, respectively. The experimental results indicated that the response voltage of the IPS can be improved by increasing the electrode interface roughness and the electrode penetration depth and reducing the surface resistance. In addition, we have proven that the sensing performance of the IPS is determined by its intrinsic capacitance characteristics. Through coupling electrode characteristic regulations such as roughening and increasing IRP cycles and EP time, a high-performance IPS was obtained, and its response amplitude was improved by 237.8%. The obtained high-performance sensor has been applied in human motion detection, which has good potential to develop wearable devices with high stability for physiological activity monitoring.