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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Recent Advances in Functional Materials and 2D/3D Processing for Sensors, Energy Storage, and Electronic Applications
Presentation Title Direct Metal Contacts Printing on 4H-SiC for Radiation Detection
Author(s) Neil R. Taylor, Yongchao Yu, Mihee Ji, Nora Dianne Bull Ezell, Pooran Joshi, Lei Raymond Cao
On-Site Speaker (Planned) Lei Raymond Cao
Abstract Scope SiC Schottky diodes can act as effective radiation detectors with applications in nuclear fuel cycle, medical imaging, homeland security and non-proliferatrion, to name a few. 4H-SiC diodes with printed Ag, Au, and Pt Schottky metals were fabricated and their electrical performance was characterized by forward and reverse IV measurements. Alpha radiation detection capability of these devices was demonstrated with a nomial energy resolution of 1.89% at 5.486 MeV and the best achievable resolution at 0.51%, compared to 0.29% using cleanroom fabricated SiC devices. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) images of the interface between the printed metal contacts and the SiC epitaxial layer were acquired, showing an imperfect bonding at the intersurfaces that may explain the nonideal diode behavior of the devices. When neutron sensitive layer such as boron caribide is printed on the top of metal contacts, this device can be used as a neutron detector.
Proceedings Inclusion? Planned:


3D Printed Passive Sensors- An Overview
Additive Manufacturing of NdFeB Bonded Permanent Magnets: Prospects and Challenges
Advancing Multiscale 3D Printing of Bioelectronics with Soft Matter Physics
Binary Metal Selenide Nano-wires Wrapped over Carbon Fibers for A Binder-free Anode of Sodium Ion Batteries
Copper-Carbon Nanotube Composites Enabled by Electrospinning for Advanced Conductors
Design of Materials for Advanced Energy Storage
Direct Metal Contacts Printing on 4H-SiC for Radiation Detection
High Strength Nanotwinned Copper Foils for Current Collectors in Lithium Ion Battery
Modeling of Rheological Properties of Metal Nanoparticle Conductive Inks for Printed Electronics
Nano and Micro Morphologies Developed during Remelting of Complex Structures
Nanostructured Thin Film Enabled Thermal Emission Based Passive Sensing for Extreme Environment Applications with Optical Fibers
Performance of Chromium Doped Zinc Selenide Nanocrystals: Morphological and Fluorescence Characteristics
Revealing Meso-structure Dynamics in Additive Manufacturing of Energy Storage via Operando Coherent X-ray Scattering
Self-assembly of Particles on Surface of Drops
Self-Assembly Synthesis and Interfacial Control of Electrode Architectures
Sterilize and Recharge Masks Simultaneously for Safe Reuse
Understanding the diminished variabilities in Ag-doped crystalline ZnO based threshold switching selectors for 3D cross-point memory

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