Journal
SMART MATERIALS AND STRUCTURES
Volume 23, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0964-1726/23/9/094005
Keywords
self-folding electric device; self-folding resistor; self-folding capacitive strain sensor; compressible origami coil actuator; global heating
Funding
- NSF [1240383, 1138967]
- Swiss National Science Foundation [PBZHP2-133472]
- Swiss National Science Foundation (SNF) [PBZHP2-133472] Funding Source: Swiss National Science Foundation (SNF)
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Printing functional materials represents a considerable impact on the access to manufacturing technology. In this paper we present a methodology and validation of print-and-self-fold miniature electric devices. Polyvinyl chloride laminated sheets based on metalized polyester film show reliable self-folding processes under a heat application, and it configures 3D electric devices. We exemplify this technique by fabricating fundamental electric devices, namely a resistor, capacitor, and inductor. Namely, we show the development of a self-folded stretchable resistor, variable resistor, capacitive strain sensor, and an actuation mechanism consisting of a folded contractible solenoid coil. Because of their pre-defined kinematic design, these devices feature elasticity, making them suitable as sensors and actuators in flexible circuits. Finally, an RLC circuit obtained from the integration of developed devices is demonstrated, in which the coil based actuator is controlled by reading a capacitive strain sensor.
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