• 文献标题:   Enhanced Sensitivity of Patterned Graphene Strain Sensors Used for Monitoring Subtle Human Body Motions
  • 文献类型:   Article
  • 作  者:   LEE SW, PARK JJ, PARK BH, MUN SC, PARK YT, LIAO K, SEO TS, HYUN WJ, PARK OO
  • 作者关键词:   stretchable electronic, strain sensor, graphene pattern, layerbylayer assembly, human motion monitoring
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244
  • 通讯作者地址:   Korea Adv Inst Sci Technol
  • 被引频次:   28
  • DOI:   10.1021/acsami.7b01551
  • 出版年:   2017

▎ 摘  要

With the growth of the wearable electronics industry, structural modifications of sensing materials have been widely attempted to improve the sensitivity of sensors. Herein, we demonstrate patterned graphene strain sensors, which can monitor small-scale motions by using the simple, scalable, and solutionprocessable method. The electrical properties of the sensors are easily tuned via repetition of the layer-by-layer assembly, leading to increment of thickness of the conducting layers. In contrast to nonpatterned sensors, the patterned sensors show enhanced sensitivity and the ability to distinguish subtle motions, such as similar phonations and 81 beats per minute of pulse rate.