Abstract
The pseudocubic structure of a (Na0.5K0.5)NbO3 (NKN) film grown on a Pt/Ti/SiO2/Si substrate changed to an orthorhombic structure when the film was transferred onto a polyimide substrate. Piezoelectric constant for the transferred NKN film increased considerably from 74 ± 11 to 120 ± 18 pm/V because the crystal structure of the film had changed from pseudocubic to orthorhombic. A gold interdigitated electrode was deposited onto the transferred NKN film to synthesize a NKN piezoelectric energy harvester. The NKN piezoelectric energy harvester was poled before bending under a 100 kV/cm DC electric field across the electrodes. When a strain of 0.85% and a strain rate of 4.05%/s were applied to the NKN piezoelectric energy harvester, it produced a maximum output voltage of 1.9 V and a current of 38 nA, corresponding to a power density of 2.89 μW/cm3.
| Original language | English |
|---|---|
| Pages (from-to) | 119-124 |
| Number of pages | 6 |
| Journal | Journal of the American Ceramic Society |
| Volume | 98 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2015 Jan 1 |
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ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
Cite this
High-performance (Na0.5K0.5)NbO3 thin film piezoelectric energy harvester. / Kim, Bo Yun; Seo, In Tae; Lee, Youn Seon; Kim, Jin Seong; Nahm, Sahn; Kang, Chong-Yun; Yoon, Seok Jin; Paik, Jong Hoo; Jeong, Young Hun.
In: Journal of the American Ceramic Society, Vol. 98, No. 1, 01.01.2015, p. 119-124.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-performance (Na0.5K0.5)NbO3 thin film piezoelectric energy harvester
AU - Kim, Bo Yun
AU - Seo, In Tae
AU - Lee, Youn Seon
AU - Kim, Jin Seong
AU - Nahm, Sahn
AU - Kang, Chong-Yun
AU - Yoon, Seok Jin
AU - Paik, Jong Hoo
AU - Jeong, Young Hun
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The pseudocubic structure of a (Na0.5K0.5)NbO3 (NKN) film grown on a Pt/Ti/SiO2/Si substrate changed to an orthorhombic structure when the film was transferred onto a polyimide substrate. Piezoelectric constant for the transferred NKN film increased considerably from 74 ± 11 to 120 ± 18 pm/V because the crystal structure of the film had changed from pseudocubic to orthorhombic. A gold interdigitated electrode was deposited onto the transferred NKN film to synthesize a NKN piezoelectric energy harvester. The NKN piezoelectric energy harvester was poled before bending under a 100 kV/cm DC electric field across the electrodes. When a strain of 0.85% and a strain rate of 4.05%/s were applied to the NKN piezoelectric energy harvester, it produced a maximum output voltage of 1.9 V and a current of 38 nA, corresponding to a power density of 2.89 μW/cm3.
AB - The pseudocubic structure of a (Na0.5K0.5)NbO3 (NKN) film grown on a Pt/Ti/SiO2/Si substrate changed to an orthorhombic structure when the film was transferred onto a polyimide substrate. Piezoelectric constant for the transferred NKN film increased considerably from 74 ± 11 to 120 ± 18 pm/V because the crystal structure of the film had changed from pseudocubic to orthorhombic. A gold interdigitated electrode was deposited onto the transferred NKN film to synthesize a NKN piezoelectric energy harvester. The NKN piezoelectric energy harvester was poled before bending under a 100 kV/cm DC electric field across the electrodes. When a strain of 0.85% and a strain rate of 4.05%/s were applied to the NKN piezoelectric energy harvester, it produced a maximum output voltage of 1.9 V and a current of 38 nA, corresponding to a power density of 2.89 μW/cm3.
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UR - http://www.scopus.com/inward/citedby.url?scp=84920119589&partnerID=8YFLogxK
U2 - 10.1111/jace.13238
DO - 10.1111/jace.13238
M3 - Article
AN - SCOPUS:84920119589
VL - 98
SP - 119
EP - 124
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 1
ER -