Highly Conductive Films by Rapid Photonic Annealing of Inkjet Printable Starch–Graphene InkShow others and affiliations
2021 (English)In: Advanced Materials Interfaces, ISSN 2196-7350, Vol. 9, no 5, article id 2101884Article in journal (Refereed) Published
Abstract [en]
A general formulation engineering method is adopted in this study to produce a highly concentrated (≈3 mg mL−1) inkjet printable starch–graphene ink in aqueous media. Photonic annealing of the starch–graphene ink is validated for rapid post-processing of printed films. The experimental results demonstrate the role of starch as dispersing agent for graphene in water and photonic pulse energy in enhancing the electrical properties of the printed graphene patterns, thus leading to an electrical conductivity of ≈2.4 × 104 S m−1. The curing mechanism is discussed based on systematic material studies. The eco-friendly and cost-efficient approach presented in this work is of technical potential for the scalable production and integration of conductive graphene inks for widespread applications in printed and flexible electronics.
Place, publisher, year, edition, pages
John Wiley and Sons Inc , 2021. Vol. 9, no 5, article id 2101884
Keywords [en]
Conductive films, Flexible electronics, Graphene, Ink, Aqueous media, Curing mechanism, Dispersing agent, Electrical conductivity, Engineering methods, Formulation engineering, Graphene inks, Ink jet, Post-processing, Pulse energies, Starch
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-58169DOI: 10.1002/admi.202101884Scopus ID: 2-s2.0-85122063587OAI: oai:DiVA.org:ri-58169DiVA, id: diva2:1628262
Note
Funding details: Stiftelsen för Strategisk Forskning, SSF, FID‐15‐0105; Funding text 1: This work was financially supported by the Swedish Foundation for Strategic Research (SSF, grant no. FID‐15‐0105) and BillerudKorsnäs AB. The authors would like to thank Karin Hallstensson for support with the SEM measurements. The authors are also thankful to Mohammad Yusuf Mulla for supporting in the fabrication of the demonstration circuit.
2022-01-142022-01-142024-03-03Bibliographically approved