Flexible Piezotronic Strain Sensor
Peking University · Georgia Institute of Technology · +1 more institution
Abstract
Strain sensors based on individual ZnO piezoelectric fine-wires (PFWs; nanowires, microwires) have been fabricated by a simple, reliable, and cost-effective technique. The electromechanical sensor device consists of a single electrically connected PFW that is placed on the outer surface of a flexible polystyrene (PS) substrate and bonded at its two ends. The entire device is fully packaged by a polydimethylsiloxane (PDMS) thin layer. The PFW has Schottky contacts at its two ends but with distinctly different barrier heights. The I- V characteristic is highly sensitive to strain mainly due to the change in Schottky barrier height (SBH), which scales linear with strain. The change in SBH is suggested owing to…
Citation impact
- FWCI
- 37.65
- Percentile
- 100%
- References
- 32
Authors
8- JZJun ZhouCorresponding
Peking University, Georgia Institute of Technology, Emory University
- YGYudong Gu
Georgia Institute of Technology, Emory University, Peking University
- PFPeng Fei
Georgia Institute of Technology, Peking University, Emory University
- WMWenjie Mai
Georgia Institute of Technology, Emory University, Peking University
- YGYifan Gao
Emory University, Georgia Institute of Technology, Peking University
Topics & keywords
- Gauge factor
- Materials science
- Polydimethylsiloxane
- Thermionic emission
- Schottky barrier
- Strain gauge
- Piezoelectricity
- Optoelectronics