Abstract
We studied a converse piezoelectric effect of individual ZnO wires by using a conductive cantilever tip attached to the end of each wire. The piezoelectric coefficients d33 of individual wires were measured and found to be in the range of 1-45 pm V-1, some of them being much larger than that of bulk ZnO. A 20% increment of d33 was found when 0.32 GPa stress was applied, but the d33 was decreased when the wire was bent by excessive compression.
Original language | English |
---|---|
Pages (from-to) | 101-104 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 66 |
Issue number | 2 |
DOIs | |
State | Published - Jan 2012 |
Bibliographical note
Funding Information:This work was supported by National Research Foundation of Korea (NRF) grants funded by the Korean Government Ministry of Education, Science and Technology (MEST) (Grant Nos. R01-2008-000-20185-0 , 331-2008-1-C00102 , 2009-0070725 and 2010-0005393 ) and the Priority Research Centers Program ( 2010-0020207 ).
Keywords
- Energy harvesting
- PFM
- Piezoelectricity
- ZnO
- ZnO wire