A graphene force sensor with pressure-amplifying structure
- Authors
- Chun, Sungwoo; Kim, Youngjun; Jin, Hyeongki; Choi, Eunsuk; Lee, Seung-Beck; Park, Wanjun
- Issue Date
- Nov-2014
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- CARBON, v.78, pp.601 - 608
- Indexed
- SCIE
SCOPUS
- Journal Title
- CARBON
- Volume
- 78
- Start Page
- 601
- End Page
- 608
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158693
- DOI
- 10.1016/j.carbon.2014.07.051
- ISSN
- 0008-6223
- Abstract
- We present a sensor of vertical forces based on single-layer graphene, with a working range that corresponds to the pressure of a gentle touch that can be perceived by humans. Polydimethylsiloxane (PDMS) is employed for the supporting material of the graphene layer and also works as a force absorber of the sensor. In spite of the low gauge factor that arises from the intrinsic electromechanical character of single-layer graphene, we achieve a resistance variation of about 17 +/- 7% in response to an applied vertical pressure of 10 kPa by introducing a pressure-amplifying structure of patterned lines that induces additional structural deformation of the graphene layer for the applied vertical force. In addition, we demonstrate a method to enhance the sensitivity of the sensor by applying resistive single-layer graphene.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 융합전자공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158693)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.