Air-stable gelatin composite memory devices on a paper substrate

Yu Chi Chang, Cheng Jung Lee, Li Wen Wang, Yeong-Her Wang

Research output: Contribution to journalArticle

Abstract

“Green’’ electronics represents an emerging area of research aimed at identifying natural materials that are applicable for environmentally safe and biodegradable devices. Iron (Fe) ions are used in gelatin matrixes (gelatin composites) prepared on commercially available flexible paper substrates through the solution method, thus, the “green” electronics were achieved. Although atomic force microscopy images show that fiber-based paper substrates result in rough Al/paper structure surfaces, the uniform interface between top Al electrodes and gelatin composites can be clearly observed in transmission electron microscopy images. This might be due to the gelatin composite acts as not only the resistive layer, but also the smoothing layer. Moreover, Fe ions play an important role in assisting redox reaction or filament formation. An Al/gelatin/Al/paper device has no resistive switching behavior. Meanwhile, devices with Fe ions on a paper substrate show reproducible resistive switching for 18 cycles, an ON/OFF ratio of over 105, and an excellent current distribution (coefficient of variation<60%). The ON/OFF ratio of the device after bending 180 cycles can be maintained at 104. The biodegradable gelatin materials have good ductility and potential in recyclable and green electronic applications.

Original languageEnglish
Pages (from-to)77-81
Number of pages5
JournalOrganic Electronics
Volume65
DOIs
Publication statusPublished - 2019 Feb 1

Fingerprint

gelatins
Gelatin
Data storage equipment
composite materials
air
Composite materials
Ions
Electronic equipment
Substrates
Air
Redox reactions
Surface structure
Ductility
Atomic force microscopy
electronics
Iron
Transmission electron microscopy
ions
cycles
Electrodes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Chang, Yu Chi ; Lee, Cheng Jung ; Wang, Li Wen ; Wang, Yeong-Her. / Air-stable gelatin composite memory devices on a paper substrate. In: Organic Electronics. 2019 ; Vol. 65. pp. 77-81.
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Air-stable gelatin composite memory devices on a paper substrate. / Chang, Yu Chi; Lee, Cheng Jung; Wang, Li Wen; Wang, Yeong-Her.

In: Organic Electronics, Vol. 65, 01.02.2019, p. 77-81.

Research output: Contribution to journalArticle

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