National Research Council
Versatile Molecular Ink Platforms for Flexible Electronics
Arnold Kell,1* Chantal Paquet,1 Olga Mozenson,1 Xiangyang Liu,1 Thomas Lacelle,1 Bhavana Deore,1 Patrick Malenfant1, Julie Ferrigno, Julie Ferrigno,2 Olivier Ferrand,2 Jian Xiong Hu,2 and Sylvie Lafrenière2
(1) Security and Disruptive Technologies Portfolio, National Research Council Canada,100 Sussex Drive, Ottawa, ON K1A 0R6, Canada
(2) GGI International, 1455, 32e Avenue, Lachine, QC H8T 3J1, Canada
Our group has developed a number of metal-organic compounds, including silver1,2 and copper carboxylates,3,4 and formulated them into a new class of conductive inks with unique properties. These materials distinguish themselves from conventional conductive inks used in printable electronic in that they do not contain metal nanoparticles or flakes, are printed as molecular precursors and can be decomposed into their metallic state yielding conductive traces following exposure to heat. The resulting conductive traces offer several advantages in emerging areas of printed electronics including improved printability, robust mechanical properties, high electrical conductivity and the ability to use these inks in unique ways.
Our research program is focused on both research and development of these molecular inks. As such, our goals include developing an understanding of how the metal-organic compounds decompose to form metal films3,4 and how the molecular structure of the compounds can be optimized to improve the properties of the ink.3,4 We are also focused on formulating the metal-organic compounds in order to impart compatibility with various printing techniques, such as inkjet,1,2 screen1 and aerosol jet printing.1 Finally, after depositing the ink, we also investigate thermal and photonic methods of processing the inks in order to optimize the electrical and mechanical properties of the metal traces to meet the demands of printable electronics.1-3
This presentation will highlight the progress we have made in understanding and optimizing copper formate and silver carboxylate inks and showcase their use in unique applications including the development of RF devices,1 all-printed transistors2 and in-mold electronics.
- A. J. Kell, C. Paquet, O. Mozenson, I. Djavani-Tabrizi, B. Deore, X. Liu, G. P. Lopinski, R. James, K. Hettak, J. Shaker, A. Momciu, J. Ferrigno, O. Ferrand, J. X. Hu, S. Lafrenière, and P. R. L. Malenfant ACS Appl. Mater. Interfaces, 2017, 9(20), 17226–17237.
- J. Ouyang, J. Ding, J. Lefebvre, Z. Li, C. Guo, A. J. Kell, and P. R. L. Malenfant ACS Nano, 2018, 12(2), 1910–1919.
- C. Paquet, T. Lacelle, B. Deore, A. J. Kell, X. Liu, I. Korobkov and P. R. L. Malenfant, Chem. Commun., 2016, 52, 2605–2608.
- C. Paquet, T. Lacelle, X. Liu, B. Deore, A.J. Kell, S. Lafrenière, P. R. L. Malenfant Nanoscale 2018, 10(15), 6911-6921.
Dr. Arnold Kell studied chemistry at the McMaster University in Hamilton, Ontario (BSc 1999) and The University of Western Ontario in London, Ontario (PhD 2004). He has 12 years of R&D experience at National Research Council Canada where he previously developed nanomaterials for biodiagnostic applications. He is currently the Technical Leader of molecular silver ink activities within the Printable Electronics program. Specifically, the focus of program is to develop molecular ink platforms that can be incorporated into scalable printing processes in order to enhance the performance of all-printed devices including a transistors, RF circuits and antennae. In addition, recent efforts are focused on the development of inks that can be utilized in stretchable and structural/in-mold electronics.
The National Research Council (NRC) is the Government of Canada’s largest research organization supporting industrial innovation, the advancement of knowledge and technology development, and fulfilling government mandates.