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Use of Nanocellulose to Produce Water-Based Conductive Inks with Ag NPs for Printed Electronics
Sandra Martinez-Crespiera1, Belén Pepió-Tàrrega1, Rosa M González-Gil1
1Applied Chemistry and Materials, ARTS Department, Leitat Technological Center, C/Pallars, 186-179, 08005 Barcelona, Spain.
International Journal of Molecular Sciences
|March 25, 2022
Summary
Sustainable nanocellulose (NC) is used to create conductive inks for printed electronics. These novel inks, templated by NC, achieve high conductivity and enable functional NFC antennas on paper.
Area of Science:
- Materials Science
- Nanotechnology
- Sustainable Electronics
Background:
- Growing demand for sustainable materials in printed electronics.
- Nanocellulose (NC) offers unique properties like high surface area and reactive hydroxyl groups.
- NC provides excellent mechanical, physical, and thermal properties as a plastic alternative.
Purpose of the Study:
- To develop water-based conductive inks using nanocellulose.
- To utilize NC as both a template for silver nanoparticle formation and an ink additive.
- To demonstrate the application of these inks in fabricating functional electronic components.
Main Methods:
- Extraction and processing of nanocellulose.
- Synthesis of silver nanoparticles (Ag NPs) templated by NC.
- Formulation of water-based conductive inks incorporating Ag NPs and NC.
- Screen-printing of Near-Field Communication (NFC) antennas onto NC-coated paper.
Main Results:
- Achieved electrical conductivity up to 2 × 106 S/m in the new conductive inks.
- Demonstrated the efficacy of NC as a templating and stabilizing agent for Ag NPs.
- Successfully fabricated operative NFC antennas using the developed Ag NP/NC-based inks.
Conclusions:
- Nanocellulose is a viable sustainable material for advanced conductive ink formulations.
- The developed inks offer competitive conductivity for printed electronics applications.
- This work paves the way for eco-friendly fabrication of electronic components like NFC antennas.
