Highly Stretchable and Sensitive Strain Sensor Based on Silver Nanowire–Elastomer Nanocomposite

Morteza Amjadi, Aekachan Pichitpajongkit, Sangjun Lee, Seunghwa Ryu, Inkyu Park

Research output: Contribution to journalArticlepeer-review

1161 Citations (Scopus)

Abstract

The demand for flexible and wearable electronic devices is increasing due to their facile interaction with human body. Flexible, stretchable and wearable sensors can be easily mounted on clothing or directly attached onto the body. Especially, highly stretchable and sensitive strain sensors are needed for the human motion detection. Here, we report highly flexible, stretchable and sensitive strain sensors based on the nanocomposite of silver nanowire (AgNW) network and PDMS elastomer in the form of the sandwich structure (i.e., AgNW thin film embedded between two layers of PDMS). The AgNW network-elastomer nanocomposite based strain sensors show strong piezoresistivity with tunable gauge factors in the ranges of 2 to 14 and a high stretchability up to 70%. We demonstrate the applicability of our high performance strain sensors by fabricating a glove integrated with five strain sensors for the motion detection of fingers and control of an avatar in the virtual environment.

Original languageEnglish
Pages (from-to)5154-5163
Number of pages10
JournalACS Nano
Volume8
Issue number5
DOIs
Publication statusPublished - 27 May 2014

Keywords

  • flexible sensor
  • human motion detection
  • nanocomposite
  • piezoresistivity
  • silver nanowire
  • strain sensor
  • stretchable sensor

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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