Frontiers of Materials Award Symposium: Nanocarbon-based Flexible Devices: Emerging Materials and Processes: Session II: From 1D Nanostructures to Soft Materials
Program Organizers: Mostafa Bedewy, University of Pittsburgh

Monday 2:00 PM
February 28, 2022
Room: 260A
Location: Anaheim Convention Center

2:00 PM Introductory Comments

2:05 PM  Keynote
Self-assembly and Synthesis of Semiconducting Carbon Nanotubes and Graphene Nanoribbons for Electronics: Michael Arnold1; 1University of Wisconsin-Madison
     Carbon nanotubes and graphene nanoribbons are exceptional semiconductors with the potential to outperform silicon in next-generation microelectronic devices while also enabling new flexible/stretchable formats for electronics due to their excellent mechanical resilience. However, new methods need to be developed to synthesize, assemble, process, and fabricate these nanomaterials. This presentation will highlight advances towards solving these challenges in two areas: (i) the large-area self-assembly of electronic-type sorted semiconducting carbon nanotubes into densely packed arrays of aligned nanotubes using interfacial self-assembly methods (1-3), and the integration of nanotubes into both high-performance static (1-3) and stretchable devices (4-5) and (ii) the bottom-up synthesis of semiconducting graphene nanoribbons as narrow as 2 nm with faceted armchair edges via chemical vapor deposition through control over the anisotropy of synthesis (6-8). (1) Jinkins et al. Science Advances, In Press (2021); (2) Jinkins et al. Advanced Electronic Materials (2019); (3) Brady et al. Science Advances (2016); (4) Wu et al. Applied Physics Letters (2019); (5) Xu et al. Nano Letters (2014); (6) Away et al. In Review (2021); (7) Away et al. Nano Letters (2018); (8) Jacobberger et al. Nature Communications (2015).

2:45 PM  Keynote
Soft Materials Approaches to Carbon Nanotubes: Gels and Composites: Mohammad Islam1; 1Carnegie Mellon University
    Carbon nanotubes combine low density with exceptional mechanical, electrical, and optical properties. It is highly desired to harness these intrinsic nanoscale properties for macroscale applications. I will describe surface modification assisted self-assembly of single-walled carbon nanotubes into macroscopic, shape and size tunable, ultra-lightweight and electrically conducting networks – hydrogels and aerogels. I will then present how we are employing concepts from soft materials to develop new applications of these networks as well as to impart emergent properties to these networks including the ability to self-heal.

3:25 PM Break

3:40 PM  Keynote
NOW ON-DEMAND ONLY - 1D Nanomaterial Based Flexible and Stretchable Electronics: Yong Zhu1; 1North Carolina State University
    Stretchable and wearable sensors that can be conformably attached to human skin or integrated with textiles to monitor the physiological parameters of humans have garnered tremendous interest. Carbon nanotubes (CNTs) and silver nanowires (AgNWs) have emerged as promising materials for stretchable and wearable electronics. In this talk, I will discuss the recent advances in CNT- and AgNW-based stretchable and wearable electronics. I will start with highly conductive and stretchable electrodes based on CNTs and AgNWs, highlighting the critical role of buckling. Then I will present a number of wearable sensors using CNTs and AgNWs for monitoring of human health and motions. A critical issue for developing nanomaterial-based stretchable devices – scalable nanomanufacturing – will be discussed. I will conclude my talk with some recent work extending from wearable sensors for human health to wearable plant sensors and soft robotics.

4:20 PM CANCELLED: Panel Discussion