Piezoelectric response of thin films determined by charge integration technique: Substrate bending effects

Barzegar, A.; Damjanović, Dragan; Ledermann, Nicolas; Muralt, Paul

doi:10.1063/1.1558228

Cited by 67 publications

(32 citation statements)

References 19 publications

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“…However the Kirchhoff plate conditions and our assumption on the shear stress in 1-2 plane implies we only need to consider S j for j=1... 3 …”

Section: Solving the Force Balance Equationmentioning

confidence: 99%

“…is dependent on the thickness ratio between PY and NP materials ͑R͒, it would make sense to have R as the independent variable. In order to derive the efficiency comparison expression, let t 3 be the total thickness of all the constituents added together; t 3 One can now make a comparison between a PY material by itself and its 2-2 connectivity composite. The simplest way to do this is by ratio.…”

Section: A Thermal Mass and Efficiencymentioning

confidence: 99%

“…Assume the total volume for both cases to be t 3 Once more, F eff b Ͼ 1 signifies rise in efficiency. However, in this case the enhanced PY coef.…”

Section: A Thermal Mass and Efficiencymentioning

confidence: 99%

“…2,3 For instance, the effect of a substrate on PY thin films, arising from thermal expansion mismatch, has been investigated extensively by various researchers. [3][4][5][6][7] Generally speaking, for perovskite-based ferroelectric materials the product term d mkl E,⌰ c ijkl E,⌰ ␣ ij T,E is much smaller than the primary term p S,E and hence the effect of this mismatch is expected to be rather limited. 4,7 The possibility of utilizing secondary PY effect to enhance the total PY coef.…”

Section: Introductionmentioning

confidence: 99%

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Pyroelectric effect enhancement in laminate composites under short circuit condition

Chang

Whatmore²,

Huang

2009

Journal of Applied Physics

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Access to the full text of the published version may require a subscription. The pyroelectric coefficients of laminate composites under short circuit condition have been investigated by analytical modeling and numerical simulations. Indicators for various pyroelectric/ non-pyroelectric material pairs that can be utilized to determine their pyroelectric coefficient enhancement credentials have been identified. Six pyroelectric materials were paired with six non-pyroelectric/elastic materials and their pyroelectric coefficient enhancement potential and figure of merit for efficiency were investigated. The best performing partnership out of the 36 pairs was lead zirconate titanate ͑PZT5H͒-chlorinated polyvinyl chloride thermoplastic ͑CPVC͒ for thickness ratios ͑R͒ below 0.09 and PZT5H-zinc for R larger than 0.09 with both demonstrating total pyroelectric coefficient of approximately −20ϫ 10 −4 C m −2 K −1 at R = 0.09, which corresponds to approximately 300% increase in the coefficient. PZT5H-CPVC also showed maximum of 800% rise in the pyroelectric coefficient while figure of merit for efficiency indicated up to twentyfold increase in its electrical response output per given thermal stimuli when compared to that of PZT5H by itself. Rights

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“…However the Kirchhoff plate conditions and our assumption on the shear stress in 1-2 plane implies we only need to consider S j for j=1... 3 …”

Section: Solving the Force Balance Equationmentioning

confidence: 99%

Section: A Thermal Mass and Efficiencymentioning

confidence: 99%

“…Assume the total volume for both cases to be t 3 Once more, F eff b Ͼ 1 signifies rise in efficiency. However, in this case the enhanced PY coef.…”

Section: A Thermal Mass and Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pyroelectric effect enhancement in laminate composites under short circuit condition

Chang

Whatmore²,

Huang

2009

Journal of Applied Physics

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“…Therefore, it may be possible to miniaturize PVDF-tactile sensors by replacing PVDF with VDF oligomer. Thus far, various techniques to measure piezoelectric coefficients have been proposed (1), (28), (29) , but the measurement results depend on the experimental apparatus. These methods can be categorized by whether the direct piezoelectric effect, i.e., applying a stress and measuring the induced charge, or the converse piezoelectric effect, i.e., applying a voltage and measuring the induced elongation, is used (28) .…”

Section: Introductionmentioning

confidence: 99%

Measurement of the Piezoelectric Properties of Vinylidene Fluoride Oligomer Using Pneumatic Pressure for Tactile Sensors

Takashima

Horie

Takenaka

et al. 2012

JMMP

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Vinylidene fluoride [VDF] oligomer is a novel substance with a smaller number of VDF units and lower molecular weight than poly(vinylidene fluoride) [PVDF]. We previously reported that the piezoelectric coefficient of VDF oligomer was greater than that of vinylidene fluoride/trifluoroethylene copolymer [P(VDF/TrFE)], and that a film composed of VDF oligomer was thin and uniform. However, the piezoelectric coefficients measured with our experimental setup using pneumatic pressure were very large. In the present study, we investigated the effects of the pyroelectricity and the substrate constraints on the piezoelectric effects of VDF oligomer by means of both experimental analyses and mathematical simulations. First, we showed that the output charge of the pyroelectric effect is large, according to our measurements. Second, we showed using the finite element method that the piezoelectric effects in the thickness direction of the film are weakened when the film is constrained by the substrate. We then estimated the piezoelectric coefficient of VDF oligomer and P(VDF/TrFE). The estimated value for P(VDF/TrFE) is similar to that reported in other previous studies.

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Theoretical Predictions for the Intrinsic Converse Longitudinal Piezoelectric Constants of Lead Zirconate Titanate Epitaxial Films

Ouyang¹,

Ramesh

Roytburd

2005

Adv Eng Mater

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The orientation dependences of the converse longitudinal piezoelectric coefficient d33,f are calculated for epitaxial Pb(ZrxTi1–x)O3 films with different compositions. This calculation showed that the substrate clamping plays an important role on determining the piezoelectric properties of ferroelectric thin films, and thus may serve as an example illustrating why physical properties of thin films are different from bulk materials.

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Piezoelectric response of thin films determined by charge integration technique: Substrate bending effects

Cited by 67 publications

References 19 publications

Pyroelectric effect enhancement in laminate composites under short circuit condition

Pyroelectric effect enhancement in laminate composites under short circuit condition

Measurement of the Piezoelectric Properties of Vinylidene Fluoride Oligomer Using Pneumatic Pressure for Tactile Sensors

Theoretical Predictions for the Intrinsic Converse Longitudinal Piezoelectric Constants of Lead Zirconate Titanate Epitaxial Films

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