“Zirconium Diboride Thin Films for Use in High Temperature Sensors and MEMS Devices.” Proc. “Enhanced Crystallinity of h-BN Films Induced by Substrate Bias During Magnetron Sputtering.” Phys. “Three-Dimensional Solid-State Lithium-Ion Batteries Fabricated Via Conformal Vapor-Phase Chemistry.” ACS Nano, 12, 5, 4286–94 (2018). “Tin Oxynitride Anodes by Atomic Layer Deposition for Solid State Batteries.” Chemistry of Materials, 30, 8, 2526–34 (2018). “Assessing Substitution Effects on Surface Chemistry by in Situ Ambient Pressure X-ray Photoelectron Spectroscopy on Perovskite Thin Films, BaCexZr0.9–xY0.1O2.95 (x = 0 0.2 0.9).” ACS Applied Materials & Interfaces, 10, 43, 37661–70 (2018). “Co-sputtering of lithium vanadium oxide thin films with variable lithium content to enable advanced solid-state batteries.” Journal of Materials Chemistry A, 10, 23, 12518–31 (2022). “Low temperature plasma-enhanced atomic layer deposition of sodium phosphorus oxynitride with tunable nitrogen content.” Journal of Vacuum Science & Technology A, 40, 3, 032403 (2022). “Micro-Raman Stress Characterization of Crystalline Si as a Function of the Lithiation State.” ACS Applied Materials & Interfaces, 15, 8, 10752–60 (2023). “Lithium Spatial Distribution and Split-off Electronic Bands at Nanoscale V2O5/LiPON Interfaces.” ACS Advanced Energy Materials, XX, X, XXXX (2023). “Status of and opportunities in electrochemical–mechanical coupling measurements.” Joule 7, 1-23 (2023). Also studied aspects of the manufacturability of different microbattery architectures, and projected performance of various design optimizations. Thin films had greater reversibility as Li+ electrodes than bulk examples. Found a process to mix SnO2 and Sn3N4 films to produce SnOxNy films of varying composition. Developed and characterized ALD thin film electrodes based on SnO2 as anodes for 3D microbatteries. Nanostructures for Electrical Energy Storage. Personal projects: formation of thin film devices with artificial grain boundaries to study lithium dendrite propagation modeling of fields and fluxes in complex 3D battery architectures for informing experiments and projecting device performance at full scale.Ĭollaborations: studies of band bending at battery interfaces and the impact on Li+ transport effects of applied stresses on battery kinetics, thermodynamics, and dendrite growth. Directing several projects with advisees and pursuing others personally and with collaborators, all in the vein of using thin film structures to study fundamental phenomena in batteries.Īdvisee projects: electrochemo-mechanical coupling experiments on Si electrodes, revealing the dynamical interactions between lithiation and stress gradients thin film solid-state battery formation and characterization through a surface science approach, looking at interfacial impedance and interphase formation modeling mechanical and chemical phenomena in 3D architectures, and effects of deposition conditions and flexible interlayers for stress relief. Thin Film Platforms for Interfaces and Mechanical Coupling. In my spare time, I enjoy teaching physics and nanofabrication skills, mentoring and supporting early career development, and creating physics outreach programs for elementary and middle school students to enhance critical thinking skills and STEM inclusion. Recently I have been pursuing questions of electrochemical interface formation and kinetics, and stress-electrochemistry coupling. I began with developing micro-batteries for applications in remote sensors, biomedical devices, and high temperature, harsh environments. I've been working at UMD since 2016 on thin film energy storage systems and fundamental materials science. I work on thin film energy storage systems and basic materials science, developing micro-batteries for microelectronics applications and to study fundamental battery science.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |