Gold Inks for Inkjet Printing on Photo Paper: Complementary Characterisation
Hanuma Reddy Tiyyagura1,2, Peter Majerič1,2, Matej Bračič1
1Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
Nanomaterials (Basel, Switzerland)
|March 6, 2021
Summary
Researchers developed gold nanoparticle (AuNP) inks for paper electronics using ultrasonic spray pyrolysis. These cost-effective gold inks show promise for flexible electronic applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electronics Engineering
Background:
- Paper-based electronics offer a cost-effective and flexible platform for various applications.
- Developing suitable conductive inks is crucial for advancing printable electronics.
Purpose of the Study:
- To synthesize gold nanoparticles (AuNPs) using ultrasonic spray pyrolysis (USP).
- To formulate stable gold inks from AuNPs for potential use in paper-based electronics.
- To characterize the synthesized AuNPs and formulated inks to determine optimal printing parameters.
Main Methods:
- AuNPs synthesized via USP from gold (III) chloride tetrahydrate and gold (III) acetate precursors.
- AuNP suspensions stabilized with polyvinylpyrrolidone (PVP) in deionized water.
- Concentration increased using rotavapor process to create gold inks (>300 ppm).
- Characterization included ICP-MS, size/shape analysis, ζ-potential, UV-Vis, SEM, and surface free energy determination via contact angle measurements.
Main Results:
- Successful synthesis of AuNPs suitable for ink formulation.
- Characterization provided data for optimizing printing parameters.
- Gold inks demonstrated potential for inkjet printing on photo paper.
Conclusions:
- AuNPs synthesized via USP are a viable material for creating gold inks.
- The developed gold inks show potential for application in cost-effective, flexible paper-based electronics.
- Further research can optimize printing processes for these novel gold inks.
