Sliced graphene foam films for dual-functional wearable strain sensors and switches†,Nanoscale Horizons

当前位置： X-MOL 学术 › Nanoscale Horiz. › 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.)

Sliced graphene foam films for dual-functional wearable strain sensors and switches†
Nanoscale Horizons ( IF 8.0 ) Pub Date : 2017-10-30 00:00:00 , DOI: 10.1039/c7nh00147a
Qingbin Zheng _{1,

2,

3,

4,

5} , Xu Liu _{1,

2,

3,

4,

5} , Hongru Xu _{1,

2,

3,

4,

5} , Ming-Shu Cheung _{1,

2,

3,

4,

5} , Yuk-Wa Choi _{1,

2,

3,

4,

5} , Hsing-Chih Huang _{1,

2,

3,

4,

5} , Ho-Yin Lei _{1,

2,

3,

4,

5} , Xi Shen _{1,

2,

3,

4,

5} , Zhenyu Wang _{1,

2,

3,

4,

5} , Ying Wu _{1,

2,

3,

4,

5} , Soo Young Kim _{6,

7,

8,

9} , Jang-Kyo Kim _{1,

2,

3,

4,

5}

Affiliation

The demand for wearable sensors is growing in many emerging fields, such as health monitoring, human-machine interfaces, robotics and personalized medicine. Here, we report the integration of skin-mountable, flexible, stretchable, dual-functional sensors and switches together with silicon-based electronics to create a novel healthcare system. We employ a facile approach to design highly stretchable graphene foam (GF)/PDMS composite films with tunable sensitivities and switching capabilities by simply controlling the thickness of GF. The GF/PDMS composite films deliver a high gauge factor of 24 at a 10% strain, tunable stretchability up to 70% and an excellent on/off switching ratio on the order of 1000. The highly reversible switching capability of the composite films is realized by identifying abnormal resistance changes at strains beyond a threshold value. To bridge the gap between signal transmission, wireless communication and post-processing in wearable devices, the sensors are combined with electronics, allowing data transmission to a smartphone using a custom-developed application consisting of a user-friendly interface. The novel approaches reported here offer a wide range of practical applications, including medical diagnosis, health monitoring and patient healthcare.

中文翻译：

切片石墨烯泡沫薄膜，用于双功能可穿戴应变传感器和开关†

在许多新兴领域，例如健康监测，人机界面，机器人技术和个性化医疗，对可穿戴式传感器的需求正在增长。在这里，我们报告了可皮肤贴装，灵活，可拉伸，双重功能的传感器和开关与基于硅的电子设备的集成，从而创建了一个新颖的医疗保健系统。我们采用一种简便的方法来设计高度可拉伸的石墨烯泡沫（GF）/ PDMS复合薄膜，其具有可调节的灵敏度和转换能力，只需控制GF的厚度即可。GF / PDMS复合膜在10％的应变下可提供24的高规格系数，高达70％的可调拉伸性以及1000量级的出色开/关切换比。通过识别应变超过阈值时的异常电阻变化，可以实现复合膜的高度可逆的开关能力。为了弥合可穿戴设备中信号传输，无线通信和后处理之间的差距，传感器与电子设备结合使用，允许使用包含用户友好界面的定制开发应用程序将数据传输到智能手机。本文报道的新颖方法提供了广泛的实际应用，包括医学诊断，健康监测和患者保健。允许使用包含用户友好界面的自定义开发的应用程序将数据传输到智能手机。本文报道的新颖方法提供了广泛的实际应用，包括医学诊断，健康监测和患者保健。允许使用包含用户友好界面的自定义开发的应用程序将数据传输到智能手机。本文报道的新颖方法提供了广泛的实际应用，包括医学诊断，健康监测和患者保健。

更新日期：2017-10-30

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