A Patterned Graphene/ZnO UV Sensor Driven by Integrated Asymmetric Micro-Supercapacitors on a Liquid Metal Patterned Foldable Paper

Junyeong Yun, Yein Lim, Hanchan Lee, Geumbee Lee, Heun Park, Soo Yeong Hong, Sang Woo Jin, Yong Hui Lee, Sang-Soo Lee, Jeong Sook Ha

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

A foldable array of patterned graphene/ZnO nanoparticle UV sensor and asymmetric micro-supercapacitors (AMSCs) integrated on a paper substrate with patterned liquid metal interconnections is reported. The resistor type UV sensor based on graphene/ZnO nanoparticles is patterned to be driven by the stored energy of the integrated AMSCs. The AMSC consists of MnO2 nanoball deposited multiwalled carbon nanotubes (MWNTs) and V2O5 wrapped MWNTs as positive and negative electrodes, respectively. As an electrolyte, propylene carbonate-poly(methyl methacrylate)-LiClO4, an organic solvent-based gel, is used. The UV sensor and AMSCs can be easily integrated on a liquid metal, Galinstan, patterned, waterproof mineral paper and show a mechanically stable UV sensing, regardless of repetitive folding cycles. This work demonstrates a novel foldable nanomaterial based sensor system driven by integrated energy storage devices, applicable to future wearable and portable electronics.

Original languageEnglish
JournalAdvanced Functional Materials
DOIs
Publication statusAccepted/In press - 2017

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Graphite
electrochemical capacitors
liquid metals
Liquid metals
Graphene
graphene
Multiwalled carbon nanotubes (MWCN)
sensors
Sensors
carbon nanotubes
Nanoparticles
nanoparticles
Polymethyl Methacrylate
energy storage
propylene
Polymethyl methacrylates
Nanostructured materials
polymethyl methacrylate
resistors
Resistors

Keywords

  • Asymmetric micro-supercapacitors
  • Foldable paper substrates
  • Graphene/ZnO nanoparticles
  • Liquid-metal interconnection
  • UV sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Condensed Matter Physics
  • Electrochemistry

Cite this

A Patterned Graphene/ZnO UV Sensor Driven by Integrated Asymmetric Micro-Supercapacitors on a Liquid Metal Patterned Foldable Paper. / Yun, Junyeong; Lim, Yein; Lee, Hanchan; Lee, Geumbee; Park, Heun; Hong, Soo Yeong; Jin, Sang Woo; Lee, Yong Hui; Lee, Sang-Soo; Ha, Jeong Sook.

In: Advanced Functional Materials, 2017.

Research output: Contribution to journalArticle

Yun, Junyeong ; Lim, Yein ; Lee, Hanchan ; Lee, Geumbee ; Park, Heun ; Hong, Soo Yeong ; Jin, Sang Woo ; Lee, Yong Hui ; Lee, Sang-Soo ; Ha, Jeong Sook. / A Patterned Graphene/ZnO UV Sensor Driven by Integrated Asymmetric Micro-Supercapacitors on a Liquid Metal Patterned Foldable Paper. In: Advanced Functional Materials. 2017.
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