Construction of a photothermal Venus flytrap from conductive polymer bimorphs

Hanwhuy Lim, Teahoon Park, Jongbeom Na, Chihyun Park, Byeonggwan Kim, Eunkyoung Kim

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A photothermally foldable soft bimorph was prepared via the dry transfer of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with tosylate onto a poly(dimethylsiloxane) film. The photothermal folding was optimized via reversible actuation by controlling the thickness of each layer and the temperature increase to afford large deflection and displacement up to 150° and >20 mm, respectively, upon exposure to near-infrared (NIR) light (808 nm). A two-dimensional array of the bimorph converted into complex three-dimensional architectures, such as a Venus flytrap, under light and reversibly unfolded in the dark. Taking advantage of the photothermal nature of PEDOT, a localized heat pocket was generated inside the folding structure. Thus, a Venus flytrap with a hot pocket reaching 100 °C was realized for the first time. The Venus flytrap could trap and move an object within a few seconds of NIR exposure.

Original languageEnglish
Article numbere399
JournalNPG Asia Materials
Volume9
Issue number7
DOIs
Publication statusPublished - 2017 Jul 7

Fingerprint

Venus (planet)
Folding
Polymers
Infrared
Infrared radiation
Large Deflection
Large Displacements
folding structures
polymers
Polydimethylsiloxane
Trap
Heat
actuation
Three-dimensional
folding
deflection
traps
heat
Temperature
poly(3,4-ethylene dioxythiophene)

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Lim, Hanwhuy ; Park, Teahoon ; Na, Jongbeom ; Park, Chihyun ; Kim, Byeonggwan ; Kim, Eunkyoung. / Construction of a photothermal Venus flytrap from conductive polymer bimorphs. In: NPG Asia Materials. 2017 ; Vol. 9, No. 7.
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abstract = "A photothermally foldable soft bimorph was prepared via the dry transfer of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with tosylate onto a poly(dimethylsiloxane) film. The photothermal folding was optimized via reversible actuation by controlling the thickness of each layer and the temperature increase to afford large deflection and displacement up to 150° and >20 mm, respectively, upon exposure to near-infrared (NIR) light (808 nm). A two-dimensional array of the bimorph converted into complex three-dimensional architectures, such as a Venus flytrap, under light and reversibly unfolded in the dark. Taking advantage of the photothermal nature of PEDOT, a localized heat pocket was generated inside the folding structure. Thus, a Venus flytrap with a hot pocket reaching 100 °C was realized for the first time. The Venus flytrap could trap and move an object within a few seconds of NIR exposure.",
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Construction of a photothermal Venus flytrap from conductive polymer bimorphs. / Lim, Hanwhuy; Park, Teahoon; Na, Jongbeom; Park, Chihyun; Kim, Byeonggwan; Kim, Eunkyoung.

In: NPG Asia Materials, Vol. 9, No. 7, e399, 07.07.2017.

Research output: Contribution to journalArticle

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AU - Lim, Hanwhuy

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