Recent Advances in Functional Materials and 2D/3D Processing for Sensors and Electronic Applications: Printed Electronics II: Functional Materials and Devices
Sponsored by: TMS Functional Materials Division, TMS: Thin Films and Interfaces Committee
Program Organizers: Pooran Joshi, Elbit Systems of America; Ravindra Nuggehalli, New Jersey Institute of Technology; Anming Hu, University of Tennessee; Tolga Aytug, Oak Ridge National Laboratory; Konstantinos Sierros, West Virginia University; Yong Lin Kong, University of Utah; Parans Paranthaman, Oak Ridge National Laboratory
Tuesday 8:30 AM
February 25, 2020
Room: Carlsbad
Location: Marriott Marquis Hotel
Session Chair: Anming Hu, The University of Tennessee, Knoxville; Yong Lin Kong, University of Utah
8:30 AM Invited
Nanomaterial Ink Development for Additive Manufacturing of Sensors: Dave Estrada1; 1Boise State University
Recent advances in the synthesis of nanomaterial based inks has increased the design space for additive manufacturing of flexible hybrid electronics (FHE) and sensors for extreme environments. FHE systems stand to benefit from high performance flexible silicon IC’s for signal processing and amplification, while also leveraging the high surface area and unique physical properties of nanomaterials as sensor electrodes. Integration of nanomaterial based sensors with flexible silicon ICs could help expedite the adoption of such FHE sensors for internet of things sensor applications. Furthermore, advances in nanomaterial based inks is enabling the adoption of additive manufacturing techniques for the miniaturization of passive nuclear sensors operating under extreme conditions. For example, printed temperature sensors and neutron dosimeters have been developed to provide critical information about the field properties of in-pile experiments. Here we highlight innovations in nanomaterial inks for inkjet, aerosol jet, and plasma jet printing of electronic materials and sensors.
8:55 AM Cancelled
Hybrid Nanomanufacturing for Wearable Intelligence: Wenzhuo Wu1; 1Purdue University
The seamless and adaptive interactions between functional devices and their environment (e.g., the human body) are critical for advancing emerging technologies, e.g., wearable devices, consumer electronics, and human-machine interface. The state-of-the-art technologies, however, require a complex integration of heterogeneous components to interface the environmental mechanical stimulus, which is ubiquitous and abundant in the above applications. Moreover, all existing technologies require a power source, which complicates the system design and limits operation schemes. I will discuss our recent progress in developing self-powered human-integrated nanodevices through the hybrid nanomanufacturing of heterostructured nanodevices with hierarchical architectures. This new class of wearable devices are conformable to human skins and can sustainably perform non-invasive functions, e.g., physiological monitoring and gesture recognition, by harvesting the operation power from the human body. This research is expected to have a positive impact and immediate relevance to many societally pervasive areas, e.g., biomedical monitoring, consumer electronics, and intelligent robotics.
9:20 AM Invited
Direct-write & Precise Patterning of Functional Nanofibers on Non-planar Substrate: Jiyoung Chang1; 1University of Utah
Nano-manufacturing has been showing its potential to revolutionize a variety of researcher fields ranging from biomedical, electronics, optics, energy, and materials. Interestingly enough, studies about manufacturing nanoscale structures on already formed 3D surfaces are still in its infancy, while most of the nano-manufacturing approaches are centered to fabricate 3D structures. However, recent rapid growth in flexible and wearable electronics industry demands scalable and low-cost nano-manufacturing processes which can be directly applicable to 3D surfaces. For instance, a lack of patterning method of low-dimensional materials, also known as 2D materials, directly from 3D surfaces is one of the major issues that hamper widespread incorporation of 2D materials to flexible and biomedical applications such as smart contact lens and wearable electronics. This talk will introduce our recent approaches to directly pattern functional fibers on non-planar substrate to advance low-cost and scalable nanomanufacturing for flexible and wearable electronics.
9:45 AM Cancelled
Materials and Process Development for Passive and Active Gas Sensors: Lydia Skolrood1; Pooran Joshi1; Ilia Ivanov1; Eric Muckley1; Andrew Lupini1; Timothy McKnight1; Timothy McIntyre1; Christine Fisher1; Tolga Aytug1; 1Oak Ridge National Laboratory
The development of passive and active sensors for the detection and monitoring of various gases is crucial for many energy applications. In this work, the effect of high-surface-area nanostructured thin films on the interaction of CO2 and H2O vapors with polyethylenimine (PEI), 1-ethyl-3-methylimidazolium (EMIM), and polyacrylamide (PAAm) functionalization is studied. Using a quartz crystal microbalance (QCM) system, integration of such unique hierarchical nanostructured scaffolds on the surface of QCM sensors is found to significantly improve sensitivity to CO2 and H2O vapors. Furthermore, fabrication of surface acoustic wave (SAW) sensors, operating at 250 and 915 MHz, incorporating the same nanostructured thin film assemblies with selective sensing chemistries for the detection of methane and hydrogen gases are also investigated. In addition, performance of printed resistive sensors on flexible polymer platforms for the detection of refrigerant gases (e.g., ammonia) will be discussed.
10:05 AM Break
10:25 AM
Fully Printed CNT-FET on a Flexible Substrate: Yongchao Yu1; Justine Valka2; Anming Hu1; Nance Ericson2; Pooran Joshi2; 1University of Tennessee; 2Oak Ridge National Laboratory
This paper repots a fully printed CNT based FET on a flexible substrate. As the development of the printable electronic technology, printable passive electronic devices start to gain a huge interest in both industrial and academic area. Especially, FET as an important component, a low-cost flexible FET shows a huge demand. In this paper, a flexible FET devise is fully printed on a PI substrate. The aerosol jet printing method is applied for whole device fabrication. Gate, source, and during electrodes are printed with a silver nano-ink. The temperature is controlled under 150°C during the whole fabrication process. Both top gate and back gate structured devices are fabricated. Additionally, with chemical treatment of CNT, both P-type and N-type FET are successfully fabricated with the same method.
10:45 AM Invited
Screen Printing to 3D Printing of Solar Cells- An Overview: Vishal Mehta1; Nuggehalli Ravindra2; 1Ohio Northern University; 2New Jersey Institute of Technology
The share of Photovoltaics in the global energy market has been steadily increasing in the last decade. The PV industry has been innovative in the use of technology and resources in developing advanced cell designs. This talk will focus on the evolution of printing techniques from contact lithography to 3D printing of solar cells. Printing techniques face unique challenges as silicon solar cell substrates become thinner (<90μm), lighter and larger. Inefficient printing techniques can limit higher cell throughput. This work will also present work the done to address wafer breakage during cell fabrication and cost optimization techniques. It will discuss the market share of various printing technologies. Recent advances in the use of additive manufacturing of solar cells will be discussed.
11:10 AM
Peel-and-Stick Inkjet Printed Polyaniline Sensors for Ammonia Gas Sensing: Christine Fisher1; Pooran Joshi1; Vishaldeep Sharma1; Yongchao Yu2; Kai Li1; Tolga Aytug1; 1Oak Ridge National Laboratory; 2University of Tennessee, Knoxville
Gas leaks remain one of the most common and costly defects within commercial refrigerant systems. Although ammonia is widely used as a refrigerant due to its diminished environmental impact over CFCs and other ozone-depleting gases, it remains toxic and flammable in high concentrations. Therefore, early leak detection is crucial. In our work, conducting polymer sensors are fabricated via inkjet printing of aqueous polyaniline (PANI) dispersions onto a polymer substrate. These flexible, low-cost devices allow for the chemical sensing of ammonia gas and address the safety, economic, and environmental issues associated with current and emerging refrigerants. The scalability of our synthesis combined with the sensitivity of PANI to ammonia make this conducting polymer an ideal candidate for commercial gas sensing applications.
11:30 AM
Controlled Modulation of Gas Sensing in Printed Graphene: Nanoparticle Nucleation and Defect Engineering in Exfoliated Graphene Flakes
: Harrison Loh1; Konstantinos Sierros1; 1West Virginia University
Liquid Phase Exfoliation (LPE) has been promoted as a low-cost and scalable method for synthesizing liquid dispersions of graphene. The relatively mild chemical environment in which LPE commonly occurs is expected to yield graphene with a relative absence of oxygen groups compared to its variant graphene oxide (GO). This lack of chemical diversity reduces the number of energetically favorable sites for gas adsorption, inhibiting this material in applications such as low-cost gas sensors. In this work, we report a solution-based method for altering the chemical nature and transport properties of dispersed LPE graphene flakes through the nucleation and growth of metallic nanoparticles and selective oxygen/defect induction. Graphene structure and associated properties are characterized via XPS, Raman, and FTIR. Sensing films are characterized via two/four-point electrical measurements and optically via UV/Vis Spectroscopy. Selectivity and sensitivity of sensors to gases (e.g. methane and hydrogen) are characterized by exposure to gas mixes.
11:50 AM
Self-Assembled Monolayer on Liquid-Liquid Interface: Kinnari Shah1; Nuggehalli Ravindra2; 1LaGuardia Community College–City University of New York; 2New Jersey Institute of Technology
External field-induced assembly can overcome the limitations that are associated with the capillary force self-assembly technique. This study presents examples of monodispersed particles and their assembly using AC electric field. The results of different size ranges of glass particles will be discussed. This method involves trapping monodispersed particles at the liquid-liquid interface, and then the AC electric field is applied. Because of the repulsive force between the particles, particles move away from each other. Finally, particles will organize, and a monolayer will form. The distance between the particles can be adjusted by adjusting the electric field intensity. A developed monolayer on the liquid-liquid interface can transform into a solid film by a suitable curing technique.