Functional Nanomaterials 2023: Session IV
Sponsored by: TMS Functional Materials Division, TMS Structural Materials Division, TMS: Nanomaterials Committee, TMS: Composite Materials Committee
Program Organizers: Yong Lin Kong, University of Utah; Sarah Ying Zhong, University of South Florida; Mostafa Bedewy, University of Pittsburgh; Woochul Lee, University of Hawaiʻi at Mānoa; Changhong Cao, McGill University; Kiyo Fujimoto, Idaho National Laboratory; Surojit Gupta, University of North Dakota; Michael Cai Wang, University of South Florida
Tuesday 2:30 PM
March 21, 2023
Room: Aqua 305
Location: Hilton
Session Chair: Ying Zhong, Harbin Institute of Technology (Shenzhen)); Changhong Cao, McGill University; Michael Cai Wang, University of South Florida
2:30 PM Keynote
Controlled Epitaxial Growth and Fabrication of Nanostructured Hybrid Halide Perovskites: Sheng Xu1; 1University of California, San Diego
Organic–inorganic halide perovskites have demonstrated tremendous potential for next-generation electronic and optoelectronic devices due to their remarkable carrier dynamics. Current studies are mostly focused on polycrystals, since controlled growth of high-quality single crystals is challenging. In this presentation, I will discuss strategies that enabled the first chemical epitaxial growth of single-crystal hybrid halide perovskites. Using advanced microfabrication, homo-/hetero-epitaxy, and a low-temperature solution method, single crystals can be grown with controlled locations, morphologies, orientations, and strain levels. By a lifting off approach, single-crystal thin films can be transferred from the epitaxial substrate to a general flexible substrate. Extending this strategy to low-dimensional perovskites yields nanostructured superlattices, based on which a solar cell with an open-circuit voltage exceeding the Shockley-Queisser limit is demonstrated. This approach opens up broad opportunities for hybrid halide perovskite materials based flexible high-performance electronic and optoelectronic devices.
3:10 PM Invited
van der Waals Semiconductors and Their Heterostructures for Nanoelectronics: Joonki Suh1; 1UNIST
Layered van der Waals semiconductors show a wealth of exotic physical phenomena when confined into the 2D lattice, thus providing new opportunities for electronics, optoelectronics, and energy harvesting devices. This talk will present highlights how such emerging materials can further benefit from electronic materials processing and new device configurations. I will first introduce a new device configuration of nonvolatile memory realized by layer-by-layer heterogeneous assembly, and its application for high-accuracy neuro-inspired computing. Next, I will talk about gas-phase synthetic strategy for scalable, layer/phase-controlled, and low-temperature deposition techniques to bring such new functionalities into real-world applications.
3:40 PM Invited
Extreme Environment Nanocrystalline Soft Magnetic Materials: Paul Ohodnicki1; Yuankang Wang1; Lauren Wewer1; Tyler Paplham1; Alex Leary1; Sam Kernion1; Kevin Byerly1; 1University of Pittsburgh
Nanocrystalline soft magnetic alloys have demonstrated superior performance in a broad range of emerging magnetic component applications, with particular value in the medium frequency (1-50 kHz) and medium to high power (kW-MW) range. A number of emerging applications in space, aviation, and electrified transportation are increasing the demand for long-term stable, high performance operation in extreme environment applications approaching or even exceeding temperatures of 500C. With Curie temperatures approaching 1000C, Co- and FeCo-based nanocrystalline alloys show particular relevance for these applications however their capabilities for extended high temperature operation and corrosion resistance in extreme environment applications have not been investigated in sufficient detail. This presentation will highlight the various aspects of “stability” that must be considered and benchmarked, including microstructure, oxidation / corrosion resistance, and magnetic properties. An overview of recent progress targeting soft magnetic nanocrystalline alloys for T>500C will also be presented and future research directions will be discussed.
4:10 PM Break
4:30 PM Keynote
3D Printing Active Electronic Devices: Michael Mcalpine1; 1University of Minnesota
The ability to three-dimensionally pattern semiconducting materials could provide a transformative approach to creating active electronic devices without the need for conventional microfabrication facilities. This could enable the generation of active electronics on-the-fly, using only source inks and a portable 3D printer. Developing the ability to 3D print various classes of materials possessing distinct properties will enable the freeform generation of active electronics in unique functional, interwoven architectures. Yet, achieving seamless integration of these diverse materials via 3D printing is a substantial challenge which requires overcoming discrepancies in material properties in addition to ensuring that the materials are compatible with the 3D printing process. We present a strategy for three-dimensionally integrating diverse classes of materials using a custom-built 3D printer to create fully 3D printed devices built around active electronics. These results represent a series of critical steps toward the 3D printing of high performance, active electronic materials and devices.
5:10 PM
Corona Discharge Enabled Electrostatic Printing (CEP) for Ultra-fast Printing and 3D Structure Construction: Zijian Weng1; Marcelo Farfan1; Parinitha Giridharan1; Evan Williams1; David Murphy1; Long Wang2; Ying Zhong1; 1University of South Florida; 2California Polytechnic State University
3D structure printing has gained tremendous attentions due to its ability to provide flexibility, cost-effectiveness, customizability in manufacturing research and industry. Most of the printing technology, however, focus on the liquid phase printing which requires relatively complicated process such as studying on formulation of inks, drying of the printed structure and cleaning of the printing residue. A novel printing method named as corona-discharge electrostatic printing (CEP) is reported to create 3D structures with various material in a non-contact, binder-free, room-temperature, ultra-fast and liquid-free environment. In this paper, a variety of powder-like material have been printed with different behaviors and demonstrate the versatile printing ability of CEP. Single aluminum ball is evaluated with high-speed camera to understand the ultrafast printing process and to calculate the travel distance, velocity and acceleration under different setups such as one-time printing, sandstorm printing and net printing. Derivative equations and COMSOL simulation were utilized to explain the large variations in the printing behaviors. A CEP printed 3D structure was created to demonstrate its ability to serve as functional electronics.
5:30 PM
Magnetic Robot with Localized Flexibility (MR-LF): Taylor Greenwood1; Henry Cagle1; Benson Pulver2; On Shun Pak3; Yong Lin Kong1; 1University of Utah; 2Unversity of Utah; 3Santa Clara University
The gastrointestinal (GI) tract is a highly constrained and complex luminal construct that fundamentally limits the size of an ingestible system. Recent advancements in mesoscale magnetic crawlers have demonstrated the ability to effectively traverse complex and confined systems by leveraging magnetic fields to induce contraction and bending-based locomotion. However, the integration of functional components (e.g., electronics) in the proposed ingestible system remains fundamentally challenging. Herein, the creation of a centralized compartment in a magnetic robot by imparting localized flexibility (MR-LF) is demonstrated. The centralized compartment enables MR-LF to be readily integrated with modular functional components and payloads, such as commercial off-the-shelf electronics and medication, while preserving its bidirectionality in an ingestible form factor. The ability of MR-LF to incorporate electronics, perform drug delivery, guide continuum devices such as catheters, and navigate air–water environments in confined lumens is demonstrated. The MR-LF enables functional integration to create a highly integrated ingestible system that can ultimately address a broad range of unmet clinical needs.