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Material approaches to stretchable strain sensors.
Chemphyschem. 2015 Apr 27; 16(6):1155-63.C

Abstract

With the recent progress made in wearable electronics, devices now require high flexibility and stretchability up to large strain levels (typically larger than 30 % strain). Wearable strain sensors or deformable strain sensors have been gaining increasing research interest because of the rapid development of electronic skins and robotics and because of their biomedical applications. Conventional brittle strain sensors made of metals and piezoresistors are not applicable for such stretchable sensors. This Review summarizes recent advances in stretchable sensors and focuses on material aspects for high stretchability and sensitivity. It begins with a brief introduction to the Wheatstone bridge circuit of conventional resistive strain sensors. Then, studies on the manipulation of materials are reviewed, including waved structural approaches for making metals and semiconductors stretchable, the use of liquid metals, and conductive filler/elastomer composites by using percolation among the fillers. For capacitive strain sensors, the constant conductivity of the electrode is a key factor in obtaining reliable sensors. Possible approaches to developing capacitive strain sensors are presented. This Review concludes with a discussion on the major challenges and perspectives related to stretchable strain sensors.

Authors+Show Affiliations

Department of Material and Science, Yonsei University, 134 Shinchon-dong, Seoul (Korea).No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25641620

Citation

Park, Jaeyoon, et al. "Material Approaches to Stretchable Strain Sensors." Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry, vol. 16, no. 6, 2015, pp. 1155-63.
Park J, You I, Shin S, et al. Material approaches to stretchable strain sensors. Chemphyschem. 2015;16(6):1155-63.
Park, J., You, I., Shin, S., & Jeong, U. (2015). Material approaches to stretchable strain sensors. Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry, 16(6), 1155-63. https://doi.org/10.1002/cphc.201402810
Park J, et al. Material Approaches to Stretchable Strain Sensors. Chemphyschem. 2015 Apr 27;16(6):1155-63. PubMed PMID: 25641620.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Material approaches to stretchable strain sensors. AU - Park,Jaeyoon, AU - You,Insang, AU - Shin,Sangbaie, AU - Jeong,Unyong, Y1 - 2015/01/13/ PY - 2014/11/13/received PY - 2015/2/3/entrez PY - 2015/2/3/pubmed PY - 2015/2/3/medline KW - conducting materials KW - electronic skins KW - sensors KW - stretchable electronics KW - wearable devices SP - 1155 EP - 63 JF - Chemphyschem : a European journal of chemical physics and physical chemistry JO - Chemphyschem VL - 16 IS - 6 N2 - With the recent progress made in wearable electronics, devices now require high flexibility and stretchability up to large strain levels (typically larger than 30 % strain). Wearable strain sensors or deformable strain sensors have been gaining increasing research interest because of the rapid development of electronic skins and robotics and because of their biomedical applications. Conventional brittle strain sensors made of metals and piezoresistors are not applicable for such stretchable sensors. This Review summarizes recent advances in stretchable sensors and focuses on material aspects for high stretchability and sensitivity. It begins with a brief introduction to the Wheatstone bridge circuit of conventional resistive strain sensors. Then, studies on the manipulation of materials are reviewed, including waved structural approaches for making metals and semiconductors stretchable, the use of liquid metals, and conductive filler/elastomer composites by using percolation among the fillers. For capacitive strain sensors, the constant conductivity of the electrode is a key factor in obtaining reliable sensors. Possible approaches to developing capacitive strain sensors are presented. This Review concludes with a discussion on the major challenges and perspectives related to stretchable strain sensors. SN - 1439-7641 UR - https://www.unboundmedicine.com/medline/citation/25641620/Material_approaches_to_stretchable_strain_sensors_ L2 - https://doi.org/10.1002/cphc.201402810 DB - PRIME DP - Unbound Medicine ER -
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