Mechanical−Electrical Triggers and Sensors Using Piezoelectric Micowires/Nanowires
- 6 August 2008
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 8 (9), 2725-2730
- https://doi.org/10.1021/nl8010484
Abstract
We demonstrate a mechanical-electrical trigger using a ZnO piezoelectric fine-wire (PFW) (microwire, nanowire). Once subjected to mechanical impact, a bent PFW creates a voltage drop across its width, with the tensile and compressive surfaces showing positive and negative voltages, respectively. The voltage and current created by the piezoelectric effect could trigger an external electronic system, thus, the impact force/pressure can be detected. The response time of the trigger/sensor is approximately 10 ms. The piezoelectric potential across the PFW has a lifetime of approximately 100 s, which is long enough for effectively "gating" the transport current along the wire; thus a piezoelectric field effect transistor is possible based on the piezotronic effect.Keywords
This publication has 25 references indexed in Scilit:
- Nanosensors for trace explosive detectionMaterials Today, 2008
- Piezoelectric Field Effect Transistor and Nanoforce Sensor Based on a Single ZnO NanowireNano Letters, 2006
- Detection, Stimulation, and Inhibition of Neuronal Signals with High-Density Nanowire Transistor ArraysScience, 2006
- Ballistic carbon nanotube field-effect transistorsNature, 2003
- Single-nanowire electrically driven lasersNature, 2003
- Growth of nanowire superlattice structures for nanoscale photonics and electronicsNature, 2002
- Logic Circuits with Carbon Nanotube TransistorsScience, 2001
- Nanowire Nanosensors for Highly Sensitive and Selective Detection of Biological and Chemical SpeciesScience, 2001
- Room-Temperature Ultraviolet Nanowire NanolasersScience, 2001
- Room-temperature transistor based on a single carbon nanotubeNature, 1998