Abstract
| Language | English |
|---|---|
| Article number | 035506 |
| Number of pages | 7 |
| Journal | Nanotechnology |
| Volume | 19 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 23 Jan 2008 |
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Keywords
- soft matter
- liquids
- polymers
- electronics
- devices
- condensed matter
- electrical
- magnetic
- optical
- instrumentation
- measurement
- nanoscale science
- low-D systems
Cite this
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Nanomechanical and electrical characterization of a new cellular electret sensor–actuator. / Windmill, J.F.C.; Zorab, A.; Bedwell, D.; Robert, D.
In: Nanotechnology, Vol. 19, No. 3, 035506, 23.01.2008.Research output: Contribution to journal › Article
TY - JOUR
T1 - Nanomechanical and electrical characterization of a new cellular electret sensor–actuator
AU - Windmill, J.F.C.
AU - Zorab, A.
AU - Bedwell, D.
AU - Robert, D.
PY - 2008/1/23
Y1 - 2008/1/23
N2 - Electrically charged cellular polymers are known to display pseudo-piezoelectric effects that endow them with interesting mechano-electrical characteristics. When a film of such a polymer is compressed, charge is generated across its thickness, and conversely, applying an oscillatory or static potential elicits mechanical motions. This dual sensor-actuator behaviour can be embedded in one material and presents distinct advantages of functional integration. A novel electroactive foam is presented here that embeds such a sensor-actuator function. The foam has a sensitivity constant (d33) of 330 pC N−1. Interestingly, the resonant behaviour of the cellular film can be altered by variation in the DC offset across the material. Such adaptive capacity could be of great advantage for tuning polymer-based mechanical devices to be either efficient sound radiators and mechanical actuators, or sensitive and coherent sensors. Possible applications in microfluidics are also discussed.
AB - Electrically charged cellular polymers are known to display pseudo-piezoelectric effects that endow them with interesting mechano-electrical characteristics. When a film of such a polymer is compressed, charge is generated across its thickness, and conversely, applying an oscillatory or static potential elicits mechanical motions. This dual sensor-actuator behaviour can be embedded in one material and presents distinct advantages of functional integration. A novel electroactive foam is presented here that embeds such a sensor-actuator function. The foam has a sensitivity constant (d33) of 330 pC N−1. Interestingly, the resonant behaviour of the cellular film can be altered by variation in the DC offset across the material. Such adaptive capacity could be of great advantage for tuning polymer-based mechanical devices to be either efficient sound radiators and mechanical actuators, or sensitive and coherent sensors. Possible applications in microfluidics are also discussed.
KW - soft matter
KW - liquids
KW - polymers
KW - electronics
KW - devices
KW - condensed matter
KW - electrical
KW - magnetic
KW - optical
KW - instrumentation
KW - measurement
KW - nanoscale science
KW - low-D systems
U2 - 10.1088/0957-4484/19/03/035506
DO - 10.1088/0957-4484/19/03/035506
M3 - Article
VL - 19
JO - Nanotechnology
T2 - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 3
M1 - 035506
ER -