Recent Advances in Printed Electronics and Additive Manufacturing: 2D/3D Functional Materials, Fabrication Processes, and Emerging Applications: Functional Materials and 2D/3D Devices IV
Sponsored by: TMS Functional Materials Division, TMS: Thin Films and Interfaces Committee
Program Organizers: Pooran Joshi, Elbit Systems of America; Rahul Panat, Carnegie Mellon University; Yong Lin Kong, University of Utah; Tolga Aytug, Oak Ridge National Laboratory; Konstantinos Sierros, West Virginia University; Changyong Cao, Michigan State University; Dave Estrada, Boise State University; Nuggehalli Ravindra, New Jersey Institute of Technology
Tuesday 2:30 PM
March 1, 2022
Room: 303C
Location: Anaheim Convention Center
Session Chair: Yong Lin Kong, University of Utah; Changyong Cao, Michigan State University; Pooran Joshi, Oak Ridge National Laboratory
2:30 PM Invited
Plasmonic and Nanocomposite Material Enabled Low Cost Optical Fiber Sensing for Electrical Asset Monitoring: Paul Ohodnicki1; Yang-Duan Su1; 1University of Pittsburgh
Real time monitoring of electrical assets for incipient failure detection and operational performance optimization presents significant challenges for electrical sensor integration. Due to the lack of electrical wires and interference, optical fiber based sensors show significant promise. However, costly optical instrumentation has been a challenge for commercialization of optical fiber based electrical asset monitoring. Plasmonic and nanocomposite material functionalized fiber optic sensors show significant promise for ultra low-cost sensing probes through simplification of the required optical instrumentation. We will emphasize on Au-nanoparticle incorporated nanocomposites displaying a localized surface plasmon resonance (LSPR) within various dielectric matrices for both temperature and chemical sensing. Experimental results will be presented for thin film nanocomposite based fiber probes, both in controlled laboratory settings and in the context of field validation. These will be complemented with optical-constant models detailing the microstructure and electronic structure of plasmonic sensing materials in the context of optical waveguide models.
2:55 PM Cancelled
3D Printing of Electrochemical Biosensors: A New World of Detecting Pathogens in Seconds: Md. Azahar Ali1; Chunshan Hu1; Sanjida Jahan1; Bin Yuan1; M. Sadeq Saleh1; Rahul Panat1; 1Carnegie Mellon University
Sensing of clinically relevant biomolecules at low concentrations can enable an early detection and treatment of a range of diseases, potentially saving lives. Several nanostructures are being explored to achieve this feat. It is recognized, however, that nanostructuring of surfaces alone is not sufficient to enhance sensor sensitivities down femtomolar (10^-15 M) range as the sensing process occurs over multiple (nano-to-meso) length-scales. In this paper, we break this barrier by introducing a sensing platform consisting of a novel multi-length-scale electrode architecture that spans from 1 nm to a millimeter and use it to demonstrate the detection of dopamine at limit-of-detection of 500attomoles. The sensor consists of a 10×10 array of hollow micropillars that are fabricated by aerosol jet 3D nanoprinting and functionalized with graphene nanoflakes. These results open the possibility of using microscale 3D printing to create electrode architectures that allow clinically relevant biomolecules to be detected at ultralow concentrations.
3:20 PM
Unconventional Low-viscosity Direct Ink Writing: Surface Force-driven Deposition of Polyelectrolyte-based Membranes: Guy Cordonier1; KmProttoy Piash1; Oishi Sanyal1; Konstantinos Sierros1; 1West Virginia University
This work explores an unconventional 3D printing method of direct ink writing low-viscosity inks to develop polyelectrolyte-based water-treatment membranes. In this work, the two polyelectrolytes, Poly(acrylic acid) and Poly(allylamine hydrochloride), are dissolved in water to form inks and deposited layer-by-layer in meandering patterns, producing cross-linked, porous polymer films up to hundreds of nanometers-microns in thickness. These porous films are developed via exposure of the layer-by-layer coated film to a highly acidic/alkaline solution which induces the formation of macro and nano porosities. The same inks are used to fabricate films using a traditional layer-by-layer dip coating approach for comparison purposes. The molecular weight of each polymer and the post-treatment steps for deposited films are varied to alter the films’ morphological and transport properties. Besides evaluation of the resulting membrane separation properties, scanning electron microscopy, atomic force microscopy, optical profilometry and contact angle are used to characterize the printed films.
3:40 PM
On Depositing Chromium-nitride Patterns by Magnetic Guided Physical Vapor Deposition: Santiago Vargas1; Diana Galeano1; Carlos Castano1; 1Virginia Commonwealth University
The magnetic field in a magnetron sputtering system has been modified to control de deposition flux and allow 3D printing of chromium-nitride structures on silicon wafers. This work compared direct current (MSDC) and high power impulse magnetron sputtering (HiPIMS) techniques to grow chromium-nitrogen structures while the magnetic strengths at the silicon substrate surface were selected to allow material pattering. The MSDC process was used to deposit a mound of chromium of about 2000 nm height in an area of 5 mm. Meanwhile, the HiPIMS formed a chromium nitride depression of about 50 nm depth in a diameter of 29 mm. Each structure was reviewed by profilometry, AFM, FIB-SEM, XRD, and XPS. Optical emission spectroscopy and the current-voltage waveforms during the processes were correlated with the resulting material structures. Other magnetic profiles were tested to give insights into the potential use of this technique as an additive manufacturing technique.