Journal
NANOSCALE
Volume 8, Issue 4, Pages 2123-2128Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr07546g
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Funding
- National Basic Research Program of China (973 Program) [2012CB932400, 2013CB933500]
- National Natural Science Foundation of China [51172246, 51373188]
- Major Research Plan of the National Natural Science Foundation of China [91333208]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Qing Lan Project
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Silicon is the dominant semiconductor in modern society, but the rigid nature of most Si structures hinders its applications in flexible electronics. In this work, Si-based flexible strain sensors are fabricated with Si fabric consisting of long Si nanowires. The as-obtained sensors demonstrate a large strain range of 50% and a gauge factor of up to 350, which are sufficient to detect human motions with superior performance over traditional sensors. The results reveal that the assembling strategy may potentially be applied to large-scale fabrication of highly sensitive, flexible strain sensors for emerging applications such as healthcare and sports monitoring. Moreover, the Si fabric would also enable broad applications of Si materials in other flexible and wearable devices such as flexible optoelectronics and displays.
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