Determination of the actuator sensitivity of electromechanical polypropylene films by atomic force microscopy

Jouko Peltonen, Mika Paajanen, Jukka Lekkala

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)

Abstract

The actuator functionality of electromechanical polypropylene films was studied using atomic force microscopy. The film carries a permanent electric charge and includes microbubbles as a result of two-dimensional stretching of the film. The thickness change of various film structures covered with electrodes was measured as a function of external voltage. The dependence was found to be nonlinear, the thickness change in the range 0.001%–0.1% of the total film thickness and affected by the internal charge density of the film. Applying a capacitor model including an air gap within the polymer layer enabled the determination of the Young’s modulus, the interfacial charge density and the actuator sensitivity of the studied structures.
Original languageEnglish
Pages (from-to)4789 - 4793
Number of pages5
JournalJournal of Applied Physics
Volume88
Issue number8
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

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polypropylene
actuators
atomic force microscopy
sensitivity
electric charge
modulus of elasticity
capacitors
film thickness
electrodes
air
polymers
electric potential

Cite this

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title = "Determination of the actuator sensitivity of electromechanical polypropylene films by atomic force microscopy",
abstract = "The actuator functionality of electromechanical polypropylene films was studied using atomic force microscopy. The film carries a permanent electric charge and includes microbubbles as a result of two-dimensional stretching of the film. The thickness change of various film structures covered with electrodes was measured as a function of external voltage. The dependence was found to be nonlinear, the thickness change in the range 0.001{\%}–0.1{\%} of the total film thickness and affected by the internal charge density of the film. Applying a capacitor model including an air gap within the polymer layer enabled the determination of the Young’s modulus, the interfacial charge density and the actuator sensitivity of the studied structures.",
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Determination of the actuator sensitivity of electromechanical polypropylene films by atomic force microscopy. / Peltonen, Jouko; Paajanen, Mika; Lekkala, Jukka.

In: Journal of Applied Physics, Vol. 88, No. 8, 2000, p. 4789 - 4793.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Determination of the actuator sensitivity of electromechanical polypropylene films by atomic force microscopy

AU - Peltonen, Jouko

AU - Paajanen, Mika

AU - Lekkala, Jukka

PY - 2000

Y1 - 2000

N2 - The actuator functionality of electromechanical polypropylene films was studied using atomic force microscopy. The film carries a permanent electric charge and includes microbubbles as a result of two-dimensional stretching of the film. The thickness change of various film structures covered with electrodes was measured as a function of external voltage. The dependence was found to be nonlinear, the thickness change in the range 0.001%–0.1% of the total film thickness and affected by the internal charge density of the film. Applying a capacitor model including an air gap within the polymer layer enabled the determination of the Young’s modulus, the interfacial charge density and the actuator sensitivity of the studied structures.

AB - The actuator functionality of electromechanical polypropylene films was studied using atomic force microscopy. The film carries a permanent electric charge and includes microbubbles as a result of two-dimensional stretching of the film. The thickness change of various film structures covered with electrodes was measured as a function of external voltage. The dependence was found to be nonlinear, the thickness change in the range 0.001%–0.1% of the total film thickness and affected by the internal charge density of the film. Applying a capacitor model including an air gap within the polymer layer enabled the determination of the Young’s modulus, the interfacial charge density and the actuator sensitivity of the studied structures.

U2 - 10.1063/1.1290448

DO - 10.1063/1.1290448

M3 - Article

VL - 88

SP - 4789

EP - 4793

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 8

ER -