In-Plane Deformation Mechanics for Highly Stretchable Electronics

Yewang Su, Xuecheng Ping, Ki Jun Yu, Jung Woo Lee, Jonathan A. Fan, Bo Wang, Ming Li, Rui Li, Daniel V. Harburg, Yong An Huang, Cunjiang Yu, Shimin Mao, Jaehoun Shim, Qinglin Yang, Pei Yin Lee, Agne Armonas, Ki Joong Choi, Yichen Yang, Ungyu Paik, Tammy ChangThomas J. Dawidczyk, Yonggang Huang, Shuodao Wang*, John A. Rogers

*Corresponding author for this work

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

A different route to stretchable structures in which thick bar geometries replace thin ribbon layouts to yield scissor-like deformations instead of in- or out-of-plane buckling modes was studied. The findings demonstrate that scissor-like mechanics represents an important design approach that can complement previously reported schemes in stretchable electronics, where high elastic stretchability, high areal coverages of active devices, and high electric performance can be achieved simultaneously. More generally, systematic studies involving experimental work, FEA and analytical theory reveal three different deformation modes, wrinkling, buckling and scissoring, for serpentine structures of hard materials on soft elastomeric substrates. For otherwise comparable designs, the elastic stretchability in the scissoring regime is much higher than that in other two regimes. Analytical studies of these designs identify key geometric parameters that govern the elastic stretchability and yield optimal values for metallic serpentine interconnects that reach levels of stretchability up to 350%, roughly six times larger than previously reported values when prestrain is not applied. The scissoring physics depends only on the thickness/width aspect ratio, and the stretchability is reversely proportional to the width. As a result, designs that involve thin interconnects with comparable (small) widths represent optimal options to achieve both large stretchability and large flexibility. The scissoring design also provides low electrical resistance and efficient heat dissipation in interconnect structures due to their thick geometries.

Original languageEnglish (US)
Article number1604989
JournalAdvanced Materials
Volume29
Issue number8
DOIs
StatePublished - Jan 1 2017

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Mechanics
Electronic equipment
Buckling
Acoustic impedance
Geometry
Heat losses
Aspect ratio
Physics
Finite element method
Substrates

Keywords

  • buckling mechanics
  • non-buckling
  • scissoring
  • stretchable electronics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Su, Yewang ; Ping, Xuecheng ; Yu, Ki Jun ; Lee, Jung Woo ; Fan, Jonathan A. ; Wang, Bo ; Li, Ming ; Li, Rui ; Harburg, Daniel V. ; Huang, Yong An ; Yu, Cunjiang ; Mao, Shimin ; Shim, Jaehoun ; Yang, Qinglin ; Lee, Pei Yin ; Armonas, Agne ; Choi, Ki Joong ; Yang, Yichen ; Paik, Ungyu ; Chang, Tammy ; Dawidczyk, Thomas J. ; Huang, Yonggang ; Wang, Shuodao ; Rogers, John A. / In-Plane Deformation Mechanics for Highly Stretchable Electronics. In: Advanced Materials. 2017 ; Vol. 29, No. 8.
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abstract = "A different route to stretchable structures in which thick bar geometries replace thin ribbon layouts to yield scissor-like deformations instead of in- or out-of-plane buckling modes was studied. The findings demonstrate that scissor-like mechanics represents an important design approach that can complement previously reported schemes in stretchable electronics, where high elastic stretchability, high areal coverages of active devices, and high electric performance can be achieved simultaneously. More generally, systematic studies involving experimental work, FEA and analytical theory reveal three different deformation modes, wrinkling, buckling and scissoring, for serpentine structures of hard materials on soft elastomeric substrates. For otherwise comparable designs, the elastic stretchability in the scissoring regime is much higher than that in other two regimes. Analytical studies of these designs identify key geometric parameters that govern the elastic stretchability and yield optimal values for metallic serpentine interconnects that reach levels of stretchability up to 350{\%}, roughly six times larger than previously reported values when prestrain is not applied. The scissoring physics depends only on the thickness/width aspect ratio, and the stretchability is reversely proportional to the width. As a result, designs that involve thin interconnects with comparable (small) widths represent optimal options to achieve both large stretchability and large flexibility. The scissoring design also provides low electrical resistance and efficient heat dissipation in interconnect structures due to their thick geometries.",
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author = "Yewang Su and Xuecheng Ping and Yu, {Ki Jun} and Lee, {Jung Woo} and Fan, {Jonathan A.} and Bo Wang and Ming Li and Rui Li and Harburg, {Daniel V.} and Huang, {Yong An} and Cunjiang Yu and Shimin Mao and Jaehoun Shim and Qinglin Yang and Lee, {Pei Yin} and Agne Armonas and Choi, {Ki Joong} and Yichen Yang and Ungyu Paik and Tammy Chang and Dawidczyk, {Thomas J.} and Yonggang Huang and Shuodao Wang and Rogers, {John A.}",
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Su, Y, Ping, X, Yu, KJ, Lee, JW, Fan, JA, Wang, B, Li, M, Li, R, Harburg, DV, Huang, YA, Yu, C, Mao, S, Shim, J, Yang, Q, Lee, PY, Armonas, A, Choi, KJ, Yang, Y, Paik, U, Chang, T, Dawidczyk, TJ, Huang, Y, Wang, S & Rogers, JA 2017, 'In-Plane Deformation Mechanics for Highly Stretchable Electronics', Advanced Materials, vol. 29, no. 8, 1604989. https://doi.org/10.1002/adma.201604989

In-Plane Deformation Mechanics for Highly Stretchable Electronics. / Su, Yewang; Ping, Xuecheng; Yu, Ki Jun; Lee, Jung Woo; Fan, Jonathan A.; Wang, Bo; Li, Ming; Li, Rui; Harburg, Daniel V.; Huang, Yong An; Yu, Cunjiang; Mao, Shimin; Shim, Jaehoun; Yang, Qinglin; Lee, Pei Yin; Armonas, Agne; Choi, Ki Joong; Yang, Yichen; Paik, Ungyu; Chang, Tammy; Dawidczyk, Thomas J.; Huang, Yonggang; Wang, Shuodao; Rogers, John A.

In: Advanced Materials, Vol. 29, No. 8, 1604989, 01.01.2017.

Research output: Contribution to journalArticle

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T1 - In-Plane Deformation Mechanics for Highly Stretchable Electronics

AU - Su, Yewang

AU - Ping, Xuecheng

AU - Yu, Ki Jun

AU - Lee, Jung Woo

AU - Fan, Jonathan A.

AU - Wang, Bo

AU - Li, Ming

AU - Li, Rui

AU - Harburg, Daniel V.

AU - Huang, Yong An

AU - Yu, Cunjiang

AU - Mao, Shimin

AU - Shim, Jaehoun

AU - Yang, Qinglin

AU - Lee, Pei Yin

AU - Armonas, Agne

AU - Choi, Ki Joong

AU - Yang, Yichen

AU - Paik, Ungyu

AU - Chang, Tammy

AU - Dawidczyk, Thomas J.

AU - Huang, Yonggang

AU - Wang, Shuodao

AU - Rogers, John A.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - A different route to stretchable structures in which thick bar geometries replace thin ribbon layouts to yield scissor-like deformations instead of in- or out-of-plane buckling modes was studied. The findings demonstrate that scissor-like mechanics represents an important design approach that can complement previously reported schemes in stretchable electronics, where high elastic stretchability, high areal coverages of active devices, and high electric performance can be achieved simultaneously. More generally, systematic studies involving experimental work, FEA and analytical theory reveal three different deformation modes, wrinkling, buckling and scissoring, for serpentine structures of hard materials on soft elastomeric substrates. For otherwise comparable designs, the elastic stretchability in the scissoring regime is much higher than that in other two regimes. Analytical studies of these designs identify key geometric parameters that govern the elastic stretchability and yield optimal values for metallic serpentine interconnects that reach levels of stretchability up to 350%, roughly six times larger than previously reported values when prestrain is not applied. The scissoring physics depends only on the thickness/width aspect ratio, and the stretchability is reversely proportional to the width. As a result, designs that involve thin interconnects with comparable (small) widths represent optimal options to achieve both large stretchability and large flexibility. The scissoring design also provides low electrical resistance and efficient heat dissipation in interconnect structures due to their thick geometries.

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KW - buckling mechanics

KW - non-buckling

KW - scissoring

KW - stretchable electronics

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Su Y, Ping X, Yu KJ, Lee JW, Fan JA, Wang B et al. In-Plane Deformation Mechanics for Highly Stretchable Electronics. Advanced Materials. 2017 Jan 1;29(8). 1604989. https://doi.org/10.1002/adma.201604989