Abstract
An experiment has demonstrated that by analyzing the shear behavior, the response in suspended geometries can be fully rationalized upon taking into account transverse contributions. P(VDF-TrFE) solutions were prepared, and placed into a 1.0 mL syringe tipped with a 27 gauge stainless steel needle. A bias of 25 kV was applied to the needle by a high voltage supply. A grounded cylindrical collector (diameter 8 cm), was placed at a distance of 6 cm from the needle. Properly designed shadow masks were positioned on the surface of the disk to deposit single nanowires. Nanowires with a measured VDF:TrFE ratio of about 70:30] were inspected by SEM with a Nova NanoSEM 450 system (FEI), using an acceleration voltage around 5 kV and an aperture size of 30 μm. Fourier transform infrared spectroscopy was performed with a spectrophotometer using a 4 mm wide beam incident orthogonally to the plane of the samples. The resulting architectures are extremely versatile, and they can find application in devices for nanoscale localization nearby large-scale surfaces and in systems for harvesting vibrational noise, which might activate the piezo-electric response of nanobeams without involving large-scale deformation of the underlying supporting substrates. Coupling flexural deformation and transverse piezoelectric response under compression forces establishes new rules for designing next devices based on polymer piezoelectric nanomaterials.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7633-7639 |
| Number of pages | 7 |
| Journal | Advanced Materials |
| Volume | 28 |
| Issue number | 35 |
| DOIs | |
| State | Published - Jan 1 2016 |
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Keywords
- electromechanical coupling
- electrospinning
- piezoelectric properties
- polymer nanofibers
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
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Shear Piezoelectricity in Poly(vinylidenefluoride-co-trifluoroethylene) : Full Piezotensor Coefficients by Molecular Modeling, Biaxial Transverse Response, and Use in Suspended Energy-Harvesting Nanostructures. / Persano, Luana; Catellani, Alessandra; Dagdeviren, Canan; Ma, Yinji; Guo, Xiaogang; Huang, Yonggang; Calzolari, Arrigo; Pisignano, Dario.
In: Advanced Materials, Vol. 28, No. 35, 01.01.2016, p. 7633-7639.Research output: Contribution to journal › Article
TY - JOUR
T1 - Shear Piezoelectricity in Poly(vinylidenefluoride-co-trifluoroethylene)
T2 - Full Piezotensor Coefficients by Molecular Modeling, Biaxial Transverse Response, and Use in Suspended Energy-Harvesting Nanostructures
AU - Persano, Luana
AU - Catellani, Alessandra
AU - Dagdeviren, Canan
AU - Ma, Yinji
AU - Guo, Xiaogang
AU - Huang, Yonggang
AU - Calzolari, Arrigo
AU - Pisignano, Dario
PY - 2016/1/1
Y1 - 2016/1/1
N2 - An experiment has demonstrated that by analyzing the shear behavior, the response in suspended geometries can be fully rationalized upon taking into account transverse contributions. P(VDF-TrFE) solutions were prepared, and placed into a 1.0 mL syringe tipped with a 27 gauge stainless steel needle. A bias of 25 kV was applied to the needle by a high voltage supply. A grounded cylindrical collector (diameter 8 cm), was placed at a distance of 6 cm from the needle. Properly designed shadow masks were positioned on the surface of the disk to deposit single nanowires. Nanowires with a measured VDF:TrFE ratio of about 70:30] were inspected by SEM with a Nova NanoSEM 450 system (FEI), using an acceleration voltage around 5 kV and an aperture size of 30 μm. Fourier transform infrared spectroscopy was performed with a spectrophotometer using a 4 mm wide beam incident orthogonally to the plane of the samples. The resulting architectures are extremely versatile, and they can find application in devices for nanoscale localization nearby large-scale surfaces and in systems for harvesting vibrational noise, which might activate the piezo-electric response of nanobeams without involving large-scale deformation of the underlying supporting substrates. Coupling flexural deformation and transverse piezoelectric response under compression forces establishes new rules for designing next devices based on polymer piezoelectric nanomaterials.
AB - An experiment has demonstrated that by analyzing the shear behavior, the response in suspended geometries can be fully rationalized upon taking into account transverse contributions. P(VDF-TrFE) solutions were prepared, and placed into a 1.0 mL syringe tipped with a 27 gauge stainless steel needle. A bias of 25 kV was applied to the needle by a high voltage supply. A grounded cylindrical collector (diameter 8 cm), was placed at a distance of 6 cm from the needle. Properly designed shadow masks were positioned on the surface of the disk to deposit single nanowires. Nanowires with a measured VDF:TrFE ratio of about 70:30] were inspected by SEM with a Nova NanoSEM 450 system (FEI), using an acceleration voltage around 5 kV and an aperture size of 30 μm. Fourier transform infrared spectroscopy was performed with a spectrophotometer using a 4 mm wide beam incident orthogonally to the plane of the samples. The resulting architectures are extremely versatile, and they can find application in devices for nanoscale localization nearby large-scale surfaces and in systems for harvesting vibrational noise, which might activate the piezo-electric response of nanobeams without involving large-scale deformation of the underlying supporting substrates. Coupling flexural deformation and transverse piezoelectric response under compression forces establishes new rules for designing next devices based on polymer piezoelectric nanomaterials.
KW - electromechanical coupling
KW - electrospinning
KW - piezoelectric properties
KW - polymer nanofibers
UR - http://www.scopus.com/inward/record.url?scp=84978227267&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84978227267&partnerID=8YFLogxK
U2 - 10.1002/adma.201506381
DO - 10.1002/adma.201506381
M3 - Article
C2 - 27357595
AN - SCOPUS:84978227267
VL - 28
SP - 7633
EP - 7639
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 35
ER -