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Parallel Microcracks-based Ultrasensitive and Highly Stretchable Strain Sensors.
ACS Appl Mater Interfaces 2016; 8(8):5618-26AA

Abstract

There is an increasing demand for flexible, skin-attachable, and wearable strain sensors due to their various potential applications. However, achieving strain sensors with both high sensitivity and high stretchability is still a grand challenge. Here, we propose highly sensitive and stretchable strain sensors based on the reversible microcrack formation in composite thin films. Controllable parallel microcracks are generated in graphite thin films coated on elastomer films. Sensors made of graphite thin films with short microcracks possess high gauge factors (maximum value of 522.6) and stretchability (ε ≥ 50%), whereas sensors with long microcracks show ultrahigh sensitivity (maximum value of 11,344) with limited stretchability (ε ≤ 50%). We demonstrate the high performance strain sensing of our sensors in both small and large strain sensing applications such as human physiological activity recognition, human body large motion capturing, vibration detection, pressure sensing, and soft robotics.

Authors+Show Affiliations

Physical Intelligence Department, Max Planck Institute for Intelligent Systems , Heisenberstr. 3, 70569, Stuttgart, Germany.Physical Intelligence Department, Max Planck Institute for Intelligent Systems , Heisenberstr. 3, 70569, Stuttgart, Germany.Physical Intelligence Department, Max Planck Institute for Intelligent Systems , Heisenberstr. 3, 70569, Stuttgart, Germany. Department of Biomedical Engineering, University of Arizona , Tucson 85721, Arizona, United States.Physical Intelligence Department, Max Planck Institute for Intelligent Systems , Heisenberstr. 3, 70569, Stuttgart, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26842553

Citation

Amjadi, Morteza, et al. "Parallel Microcracks-based Ultrasensitive and Highly Stretchable Strain Sensors." ACS Applied Materials & Interfaces, vol. 8, no. 8, 2016, pp. 5618-26.
Amjadi M, Turan M, Clementson CP, et al. Parallel Microcracks-based Ultrasensitive and Highly Stretchable Strain Sensors. ACS Appl Mater Interfaces. 2016;8(8):5618-26.
Amjadi, M., Turan, M., Clementson, C. P., & Sitti, M. (2016). Parallel Microcracks-based Ultrasensitive and Highly Stretchable Strain Sensors. ACS Applied Materials & Interfaces, 8(8), pp. 5618-26. doi:10.1021/acsami.5b12588.
Amjadi M, et al. Parallel Microcracks-based Ultrasensitive and Highly Stretchable Strain Sensors. ACS Appl Mater Interfaces. 2016 Mar 2;8(8):5618-26. PubMed PMID: 26842553.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Parallel Microcracks-based Ultrasensitive and Highly Stretchable Strain Sensors. AU - Amjadi,Morteza, AU - Turan,Mehmet, AU - Clementson,Cameron P, AU - Sitti,Metin, Y1 - 2016/02/16/ PY - 2016/2/5/entrez PY - 2016/2/5/pubmed PY - 2016/12/15/medline KW - human motion detection KW - parallel microcracks KW - skin-attachable sensors KW - strain sensors KW - wearable sensors SP - 5618 EP - 26 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 8 IS - 8 N2 - There is an increasing demand for flexible, skin-attachable, and wearable strain sensors due to their various potential applications. However, achieving strain sensors with both high sensitivity and high stretchability is still a grand challenge. Here, we propose highly sensitive and stretchable strain sensors based on the reversible microcrack formation in composite thin films. Controllable parallel microcracks are generated in graphite thin films coated on elastomer films. Sensors made of graphite thin films with short microcracks possess high gauge factors (maximum value of 522.6) and stretchability (ε ≥ 50%), whereas sensors with long microcracks show ultrahigh sensitivity (maximum value of 11,344) with limited stretchability (ε ≤ 50%). We demonstrate the high performance strain sensing of our sensors in both small and large strain sensing applications such as human physiological activity recognition, human body large motion capturing, vibration detection, pressure sensing, and soft robotics. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/26842553/Parallel_Microcracks_based_Ultrasensitive_and_Highly_Stretchable_Strain_Sensors_ L2 - https://dx.doi.org/10.1021/acsami.5b12588 DB - PRIME DP - Unbound Medicine ER -