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Wood panel products are essential materials used in construction for applications such as flooring, siding, and roofing, typically available in standard dimensions of 4 feet by 8 feet, with thicknesses varying from one-quarter of an inch to one and one-eighth inches. Among the most common types of wood panels is plywood, which is produced by gluing multiple layers of thin wood veneers under pressure. The grain of the outer veneers runs lengthwise, while the grains of the interior layers run...
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Wood-Based Flexible Electronics.

Qiliang Fu1, Yi Chen1, Mathias Sorieul1

  • 1Scion, 49 Sala Street, Rotorua 3020, New Zealand.

ACS Nano
|February 29, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed eco-friendly flexible electronics using a transparent wood film substrate and a lignin-derived conductive ink. This sustainable approach offers high performance for future electronic applications.

Keywords:
celluloseflexible electronicslignin-derived carbon nanofiberstransparent filmwood

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Sustainable Engineering

Background:

  • Next-generation electronics demand high performance, multifunctionality, and environmental friendliness.
  • Traditional electronic materials often pose environmental challenges.
  • There is a growing need for sustainable and bio-based alternatives in electronics.

Purpose of the Study:

  • To create a fully wood-based flexible electronics circuit.
  • To develop a high-performance, environmentally friendly electronic material from wood.
  • To demonstrate the potential of wood-based materials in flexible electronics and sensors.

Main Methods:

  • Fabrication of a transparent wood film by removing lignin and hemicellulose, followed by cell wall collapsing.
  • Preservation of cellulose nanofiber alignment and binding during film formation.
  • Formulation and printing of a sustainable, bio-based conductive ink using lignin-derived carbon nanofibers.

Main Results:

  • A strong, flexible, and transparent wood film with a Young's modulus of 49.9 GPa and tensile strength of 469.9 MPa was created.
  • A functional strain sensor was demonstrated using the printed wood-based conductive circuit.
  • The combined wood film and conductive ink resulted in environmentally friendly and sustainable wood-based electronics.

Conclusions:

  • A novel, fully wood-based flexible electronics circuit has been successfully developed.
  • This technology offers a sustainable and high-performance alternative for future electronic applications.
  • The scalable fabrication process and end-of-life recyclability highlight the potential for widespread adoption.