2D Materials: Preparation, Properties, Modeling & Applications: Processing, Characterization & Applications II
Sponsored by: TMS Functional Materials Division, TMS: Thin Films and Interfaces Committee
Program Organizers: Nuggehalli Ravindra, New Jersey Institute of Technology; Madan Dubey, US Army Research Laboratory; Sufian Abedrabbo, Khalifa University; Hesam Askari, University Of Rochester; Gerald Ferblantier, University of Strasbourg - IUT LP / ICube Laboratory - CNRS; Ramana Chintalapalle, University of Texas at El Paso; Joshua Young, New Jersey Institute of Technology; Adele Carrado, University of Strasbourg; Karine Mougin, Cnrs, Is2m; Heinz Palkowski, Clausthal University of Technology
Tuesday 2:30 PM
March 21, 2023
Room: Aqua AB
Location: Hilton
Session Chair: Heinz Palkowski, Clausthal University of Technology; Adele Carrado, University of Strasbourg - IUT LP / IPCMS - CNRS
2:30 PM Introductory Comments
2:35 PM Invited
2D-binary, Ternary and Quaternary Crystals for Space Applications: Narasimha Prasad1; Ching Su2; Meghan Brandt3; Eric Bowman3; Bradley Arnold3; Fow-Sen Choa3; Brian Cullum3; Narsingh Singh3; 1NASA langley Research Center; 2NASA Marshall Space Flight Center; 3University of Maryland Baltimore County
We will describe layering and cleaving of heavy metals based single containing high atomic number and high density suitable for rad-hard applications such as space components. The multinary materials have a large flexibility to design transparency, damage threshold and performance [1-3]. Experiments on the growth and characteristics of recent work of highly anisotropic gallium selenides, thallium gallium selenide, and silver gallium germanium selenide will be described. These crystals have shown strong tendency of cleaving due to Van der Waal forces along –C direction making 2D materials. These crystals have wide transparency, show very large transparency range and have extremely low absorption coefficients. A brief summary on nano, micro and bulk morphologies and its effect on performance of these materials will be presented.
3:00 PM Keynote
2D Materials in Advance Electronic and Optoelectronic Applications: Sina Najmaei1; 1DEVCOM Army Research Laboratory
2D materials have for many years been at the center of attention in the semiconducting research communities that have a strong focus on advancing the computing and sensing capabilities of future technologies. In this talk I will examine the unique role van der Waals materials can play in some of the future technologies by focusing on examples of promising back-end of line integrable 2D neuromorphic computing and photodetectors devices. The unique physical and device properties of the van der Waals materials that enable and merit these applications will be discussed. I will also focus on the distinctive basic material processing and device integration challenges that these materials possess and demonstrate solutions that we have been exploring in our team to build a roadmap for incorporation of these materials in these game changing applications.
3:30 PM Invited
A Rapid, Fully Automated Electrochemical Modular Platform using 2D Materials as a Porous Electrode for Sensing Biological and Chemical Moieties of Interest: Sreerag Kaaliveetil1; Yu-Hsuan Cheng1; Li Zhenglong1; Sagnik Basuray1; 1New Jersey Institute of Technology
Basuray group has developed a sensor platform called ESSENCE, a Shear-Enhanced, flow-through non-planar 3D Nanoporous Electrode. ESSENCE consists of a microfluidic channel packed with a transducer material like carbon nanotubes or other 2D materials, functionalized with capture molecules, surrounded by interdigitated electrodes. The porous electrode architecture enhances shear forces leading to high selectivity, enhanced electric field penetration due to the 3D electrode, and disrupts diffusive processes, leading to rapid measurements at a high frequency which leads to substantial enhancement in the signal-to-noise ratio and thus high sensitivity. Furthermore, unique chip architecture allows room temperature assembly with the transducer material easily exchanged to target different biomolecules, thus making ESSENCE a universal modular platform. For example, different 2D and 3D nanomaterials from graphene oxide, carbon nanotubes, and metal-organic frameworks can be used to tailor the platform to detect biological molecules or chemical moieties with high sensitivity and selectivity.
3:55 PM Invited
Controlled Synthesis of 2D Transition Metal Dichalcogenides for Electronic Biosensors: Mengqiang Zhao1; 1New Jersey Institute of Technology
Modern electronics and optoelectronics require large-scale growth of semiconducting thin films, which would benefit the development of high-performance ultrathin and flexible devices. Two-dimensional (2D) transition metal dichalcogenides (TMDs) provide ideal semiconducting materials with attractive electronic and photonic properties. Towards to route to their practical applications, the controlled growth of 2D TMDs with well-designed composition, layer number, size, and structure is prerequisite. In this talk, I will present our recent progress on the controlled growth of 2D TMDs by chemical vapor deposition (CVD). Bilayer TMDs with a 100% selectivity, a variety of TMD-based heterostructures, and large-area continuous monolayer TMD films are all successfully obtained. An universal functionalization method based on hexagonal boron nitride (hBN) interlayers has been developed to promote the application of 2D semiconductors in electronic biosensors.
4:20 PM Break
4:40 PM Invited
Introduction of Two-dimensional Nanomaterials for Thin, Elastomeric, Durable Barriers for Chemical Protection (2D@CB): Tracee Whitfield1; 1Defense Threat Reduction Agency
Elastomers, such as butyl rubber, have traditionally been used to provide a barrier against chemical and biological (CB) penetration, such as in the case of gloves. However, these moisture vapor impermeable materials increase insulation and impede evaporative cooling, thereby increasing thermal burden. Also, these materials greatly impair manual dexterity and tactile sensations compared to bare hand performance. Therefore, a need exists for thin, durable, CB repellent, elastomeric based materials. The Defense Threat Reduction Agency’s Chemical and Biological Technologies Department is invested in fundamental understanding of how to develop and integrate two-dimensional materials for increasing the multi-functionality of elastomer nanocomposites. Approaches consider both mechanism of incorporating chemical agent protection (agent repellency) on elastomeric surfaces and limiting the physiological burden (and thermal and mobility) that reduces user effectiveness. This talk will highlight the recent developments from ongoing research in 2D@CB.
5:05 PM Keynote
Membranes for Breathable Barrier/Protective Coatings for Toxic Gases/Vapors and Chemical Warfare Agents
: Kamalesh Sirkar1; 1New Jersey Institute of Technology
Prevention of exposure to toxic gases and vapors during industrial accidents and to chemical warfare agents in war zones is a challenging problem. The person wearing a protective coating should be able to breathe, must get rid off sweat through the barrier and yet protect oneself from the toxic gases and vapors. It is a challenging problem. Moisture must be transported efficiently, yet toxic gases/vapors should be blocked. This talk will provide a brief introduction to the approaches followed over the years including use of a large amount of activated carbons in the protective coatings. More importantly, it will bring in three modern frontiers in material innovations—metal organic frameworks (MOFs), graphene/graphene oxide and carbon nanotubes. Membranes and membrane structures involving such materials are of great interest. We will provide an overview of recent research in these areas and our contributions to this field.
5:35 PM Invited
Parameter Space of Ferroelectrics and Metals Interfacing with Two-dimensional Materials for Neuromorphic Device Applications: Wendy Sarney1; M. G. Sales2; A. Mazzoni1; P.J. Taylor1; J. Pearson1; S. McDonnell2; Sina Najmaei1; 1DEVCOM Army Research Laboratory; 2University of Virginia
Two-dimensional transition metal dichalcogenides (2D-TMDs), including MoS2 and WSe2 are attractive neuromorphic materials with advantageous properties including their atomic-level thinness and tunable electronic properties. These assets enhance their behavior as synaptic emulators and allow for relatively low energy consumption. 2D materials are used with ferroelectrics and with metal contacts in device structures. HfO2 compounds, sometimes including Zr, have extreme thickness scaling, CMOS compatibility, and desirable electric and ferroelectric properties. Thermal processing forms polymorphic materials with amorphous, cubic, tetragonal, rhombohedral, monoclinic, and orthorhombic phases. A key challenge remaining is to make low resistance ohmic contacts to 2D-TMDs layers. We discuss the materials property parameter space for the contact and ferroelectric layers that interface with 2D-TMDs in neuromorphic device structures.