A Protein-Based, Water-Insoluble, and Bendable Polymer with Ionic Conductivity: A Roadmap for Flexible and Green Electronics

Firoz Babu Kadumudi, Mohammadjavad Jahanshahi, Mehdi Mehrali, Tiberiu-Gabriel Zsurzsan, Nayere Taebnia, Masoud Hasany, Soumyaranjan Mohanty, Arnold Knott, Brent Godau, Mohsen Akbari, Alireza Dolatshahi-Pirouz*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Proteins present an ecofriendly alternative to many of the synthetic components currently used in electronics. They can therefore in combination with flexibility and electroactivity uncover a range of new opportunities in the field of flexible and green electronics. In this study, silk‐based ionic conductors are turned into stable thin films by embedding them with 2D nanoclay platelets. More specifically, this material is utilized to develop a flexible and ecofriendly motion‐sensitive touchscreen device. The display‐like sensor can readily transmit light, is easy to recycle and can monitor the motion of almost any part of the human body. It also displays a significantly lower sheet resistance during bending and stretching regimes than the values typically reported for conventional metallic‐based conductors, and remains fully operational after mechanical endurance testing. Moreover, it can operate at high frequencies in the kilohertz (kHz) range under both normal and bending modes. Notably, our new technology is available through a simple one‐step manufacturing technique and can therefore easily be extended to large‐scale fabrication of electronic devices.

Original languageEnglish
Article number1801241
JournalAdvanced Science
Volume6
Issue number5
Number of pages12
ISSN2198-3844
DOIs
Publication statusPublished - 2019

Keywords

  • Ecofriendly materials
  • Fleco‐ionics
  • Flexible displays
  • Flexible electronics
  • Human motion detection
  • Nanomaterials
  • Silk

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