Patrick Malenfant

Patrick Malenfant

Director of R&D

National Research Council of Canada

Presentation Title:

Development of Nanomaterials For Printable Electronics

Time: TBD

Presentation Abstract:

Patrick R. L. Malenfant*(1), Jianfu Ding(1), Jianying Ouyang(1), Zhao Li(1), Chang Guo(1), Jacques Lefebvre(1), Francois Lapointe(1), Arnold J. Kell(1), Chantal Paquet(1), Bhavana Deore, Xiangyang Liu(1), Olga Mozenson(1), Thomas Lacelle(1), Gyoujin Cho(2)

  • National Research Council Canada, 1200 Montreal Road, Ottawa, ON, K1A 0R6, Canada.
  • Department of Printed Electronics Engineering, Sunchon National University, Sunchon, Jeonnam 540–742, South Korea

The National Research Council (NRC) is Canada’s premier organization for research and technology development. NRC’s Printable Electronics (PE) program develops materials and inks for additive manufacturing in order to enable a sustainable PE sector in Canada.  Progress has been made over the last 15 years, yet many challenges remain at the materials, fabrication and integration level, limiting performance and commercialization.  This presentation covers our progress in semiconducting single-walled carbon nanotube (sc-SWCNT) enrichment and transistor fabrication via solution based processes as well as conductive molecular ink development [1-8].  I will highlight our recent progress in understanding sc-SWCNT enrichment using conjugated polymers, with special consideration given to the effects of solvent parameters and doping on the mechanism and yield/purity of the final product [2-4].  Developments in conductive molecular inks and progress towards the commercialization of new applications will be described [5,6].  Challenges and advances associated with using polymer-based dielectrics will be discussed [7].  Such transistor packages have enabled the realization of fully inkjet-printed transistors as a result of the excellent electrical properties of sc-SWCNTs[2,8].  A demonstration of a fully additive process to make TFT backplanes via R2R printing will also be highlighted.  The development of new functional nanomaterials and their successful integration into devices will enable additive manufacturing of emerging applications.

[1] J. Lefebvre et al. Acc. Chem. Res. 50, 2479 (2017). 

[2] J. Ouyang et al. ACS Nano 12, 1910 (2018). 

[3] J. Ding et al. J. Phys. Chem. C 120, 21946 (2016). 

[4] Z. Li et al. ACS Omega 3, 3413 (2018). 

[5] A. J. Kell et al. ACS Appl. Mater. Interfaces 9, 17226 (2017). 

[6] C. Paquet et al. Nanoscale 2018, DOI: 10.1039/c7nr08891d. 

[7] J. Lefebvre et al. Appl. Phys. Lett. 107, 243301 (2015).

[8] C. Homenick et al. ACS Appl. Mater. Interfaces 8, 27900, (2016)


Dr. Patrick Malenfant studied chemistry at the University of Ottawa (BSc 1995), Cornell University (MSc 1997), and the University of California – Berkeley (PhD 2000). He has 10 years of industrial R&D experience including a one year postdoc at IBM’s TJ Watson Research Center and 9 years at the GE Global Research Center where he developed nanomaterials for Aerospace, Healthcare, and Organic Electronics applications. He joined the National Research Council of Canada in 2010 as a Senior Research Officer. He is currently the Directro of R&D, Nanomaterials Group Leader in the Security and Disruptive Portfolio and the Materials Thrust Leader of the Printable Electronics.

Company Profile:

The National Research Council (NRC) is the Government of Canada’s premier research organization. The NRC partners with Canadian industry to take research impacts from the lab to the marketplace. We are responsive, creative and uniquely placed to partner with Canadian industry, to invest in strategic R&D programming that will address critical issues for our future.   NRC’s Printable Electronics (PE) initiative coordinates research with industrial partners as a springboard for establishing a competitive, sustainable and large-scale PE sector in Canada. NRC has established a research and product demonstration capability to give Canadian designers and manufacturers a decisive competitive edge in producing PE products for world markets.