Transparent, low-power pressure sensor matrix based on coplanar-gate graphene transistors

Qijun Sun, Do Hwan Kim, Sang Sik Park, Nae Yoon Lee, Yu Zhang, Jung Heon Lee, Kilwon Cho, Jeong Ho Cho

Research output: Contribution to journalArticle

119 Scopus citations

Abstract

A novel device architecture for preparing a transparent and low-voltage graphene pressure-sensor matrix on plastic and rubber substrates is demonstrated. The coplanar gate configuration of the graphene transistor enables a simplified procedure. The resulting devices exhibit excellent device performance, including a high transparency of ca. 80% in the visible range, a low operating voltage less than 2 V, a high pressure sensitivity of 0.12 kPa-1, and excellent mechanical durability over 2500 cycles.

Original languageEnglish
Pages (from-to)4735-4740
Number of pages6
JournalAdvanced Materials
Volume26
Issue number27
DOIs
StatePublished - 2014 Jul 16

Keywords

  • coplanar gate graphene transistor
  • electronic skin
  • low power
  • pressure sensors active matrix
  • transparency

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    Sun, Q., Kim, D. H., Park, S. S., Lee, N. Y., Zhang, Y., Lee, J. H., Cho, K., & Cho, J. H. (2014). Transparent, low-power pressure sensor matrix based on coplanar-gate graphene transistors. Advanced Materials, 26(27), 4735-4740. https://doi.org/10.1002/adma.201400918