A Stretchable Ionic Diode from Copolyelectrolyte Hydrogels with Methacrylated Polysaccharides

Hae Ryung Lee, Jae Sung Woo, Seok Hee Han, Seung Min Lim, Sungsoo Lim, Yong Woo Kang, Won Jun Song, Jae Man Park, Taek Dong Chung, Young Chang Joo, Jeong Yun Sun

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

As the demand for soft and flexible devices steadily increases, the ionic applications demonstrated with gel materials have come under the spotlight. Here, stretchable and wearable ionic diodes (SIDs) made from polyelectrolyte hydrogels are introduced. Polyelectrolyte hydrogels are mechanically modified using methacrylated polysaccharides while preserving the ion-permselectivity of poly(sulfopropyl acrylate) potassium salt (PSPA) and poly([acrylamidopropyl]trimethylammonium chloride) (PDMAPAA-Q), forming ionic copolymers. Then, SIDs composed of polyelectrolyte copolymer hydrogels are fabricated in VHB substrates as a stretchable and transparent insulating layer which is engraved by a laser. The SIDs show rectifying behaviors beyond the stretch of 3 with the aid of perfect adhesion between hydrogels and elastomeric substrates, and preserve their rectifications over hundreds of cycles. The operation of the SID is visualized by a wearable ionic circuit which rectifies ionic currents and lightens the LED under the forward bias during finger movements.

Original languageEnglish
Article number1806909
JournalAdvanced Functional Materials
Volume29
Issue number4
DOIs
Publication statusPublished - 2019 Jan 24
Externally publishedYes

Fingerprint

Hydrogels
polysaccharides
Polysaccharides
Diodes
Polyelectrolytes
diodes
copolymers
Copolymers
rectification
Substrates
acrylates
preserving
Light emitting diodes
Potassium
Chlorides
potassium
adhesion
light emitting diodes
Adhesion
Gels

Keywords

  • ionic circuit
  • ionic diode
  • LASER engraving
  • polyelectrolyte gel
  • stretchable diode

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

A Stretchable Ionic Diode from Copolyelectrolyte Hydrogels with Methacrylated Polysaccharides. / Lee, Hae Ryung; Woo, Jae Sung; Han, Seok Hee; Lim, Seung Min; Lim, Sungsoo; Kang, Yong Woo; Song, Won Jun; Park, Jae Man; Chung, Taek Dong; Joo, Young Chang; Sun, Jeong Yun.

In: Advanced Functional Materials, Vol. 29, No. 4, 1806909, 24.01.2019.

Research output: Contribution to journalArticle

Lee, HR, Woo, JS, Han, SH, Lim, SM, Lim, S, Kang, YW, Song, WJ, Park, JM, Chung, TD, Joo, YC & Sun, JY 2019, 'A Stretchable Ionic Diode from Copolyelectrolyte Hydrogels with Methacrylated Polysaccharides', Advanced Functional Materials, vol. 29, no. 4, 1806909. https://doi.org/10.1002/adfm.201806909
Lee, Hae Ryung ; Woo, Jae Sung ; Han, Seok Hee ; Lim, Seung Min ; Lim, Sungsoo ; Kang, Yong Woo ; Song, Won Jun ; Park, Jae Man ; Chung, Taek Dong ; Joo, Young Chang ; Sun, Jeong Yun. / A Stretchable Ionic Diode from Copolyelectrolyte Hydrogels with Methacrylated Polysaccharides. In: Advanced Functional Materials. 2019 ; Vol. 29, No. 4.
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