Highly Sensitive and Flexible Pressure Sensor Prepared by Simple Printing Used for Micro Motion Detection,Advanced Materials Interfaces

当前位置： X-MOL 学术 › Adv. Mater. Interfaces › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Highly Sensitive and Flexible Pressure Sensor Prepared by Simple Printing Used for Micro Motion Detection
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2019-12-17 , DOI: 10.1002/admi.201901704
Zhihua Ma ₁ , Wei Wang ₁ , Dan Yu _{1,

2}

Affiliation

Smart wearable flexible sensors with high sensitivity and stability are still challenging nowadays when used for human motion detection, personal health monitoring, or artificial electronic skins. Here, a sensor assembled in a face‐to‐face manner based on fabric is proposed, firstly polyaniline (PANI)/nanonickel (Ni NPs)/COOH‐functionalized MWCNTs (COOH‐MWCNTs) conductive paste is prepared and printed on the cotton fabric. Then the printed fabric is assembled to be a flexible sensor which has double conductive layers. According to the analysis of the scanning electron microscopy, energy‐dispersive spectroscopy, X‐ray diffraction, and Fourier transform infrared spectroscopy, the synergistic performance of PANI, Ni NPs, and COOH‐MWCNTs is demonstrated. When the pressure is 0–0.1 kPa, gauge factor (GF) is 12.96 kPa⁻¹, and when the pressure is 0.1–1 kPa, the GF is 1.33 kPa⁻¹, indicating superior sensitivity of the sensor compared to traditional textile‐based sensors. It also displays quick response time of 0.2 s and recovery time of 0.3 s. The as‐prepared sensor can effectively monitor human micro motions like face, eye, and fingers movements, and it can also transmit electrical signals agilely by indirect contact. Moreover, a large‐area sensor spatial array is fabricated, and the test indicates the sensor can recognize spatial response.

中文翻译：

通过简单印刷制备的高灵敏度和灵活的压力传感器，用于微动检测

如今，具有高灵敏度和稳定性的智能可穿戴柔性传感器在用于人体运动检测，个人健康监测或人造电子皮肤时仍面临挑战。在此，提出了一种基于织物的面对面组装的传感器，首先准备了聚苯胺（PANI）/纳诺克尔（Ni NPs）/ COOH功能化的MWCNTs（COOH-MWCNTs）导电胶并将其印刷在棉织物上。然后，将印刷的织物组装成具有双导电层的柔性传感器。根据对扫描电子显微镜，能量色散光谱，X射线衍射和傅里叶变换红外光谱的分析，证明了PANI，Ni NP和COOH-MWCNT的协同性能。当压力为0–0.1 kPa时，表压系数（GF）为12.96 kPa ^-1，并且当压力为0.1–1 kPa时，GF为1.33 kPa ^-1，这表明该传感器与传统的基于纺织品的传感器相比具有更高的灵敏度。它还显示0.2 s的快速响应时间和0.3 s的恢复时间。所准备的传感器可以有效地监视人的微动，例如面部，眼睛和手指的运动，并且还可以通过间接接触灵活地传输电信号。此外，制造了一个大面积的传感器空间阵列，测试表明该传感器可以识别空间响应。

更新日期：2019-12-17

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11