- Molecular Junctions and Nanostructures
- Advanced Sensor and Energy Harvesting Materials
- Electron and X-Ray Spectroscopy Techniques
- biodegradable polymer synthesis and properties
- Advancements in Semiconductor Devices and Circuit Design
- Nanofabrication and Lithography Techniques
- Full-Duplex Wireless Communications
- Anodic Oxide Films and Nanostructures
- Quantum and electron transport phenomena
- Electrical Contact Performance and Analysis
- Electrospun Nanofibers in Biomedical Applications
- Acoustic Wave Resonator Technologies
University of Pennsylvania
2001-2024
Abstract A single tunable filter simplifies complexity, reduces insertion loss, and minimizes size compared to frequency switchable banks commonly used for radio (RF) band selection. Magnetostatic wave (MSW) filters stand out their wide, continuous tuning high-quality factor. However, MSW employing electromagnets consume excessive power space, unsuitable consumer wireless applications. Here, we demonstrate miniature high selectivity with zero static consumption, occupying less than 2 cc. The...
This paper presents the development and characterization of biodegradable electrical interconnects for transient implantable medical devices. The comprised micropatterned conductive polymer composites, which were developed using iron (Fe) microparticles as filler polycaprolactone (PCL) insulating matrix. properties composites investigated under various degradation conditions. Electrical percolation was observed at 17% Fe volume fraction, but higher fractions exhibited more stable resistivity...
To explain our observations of anomalous transport through a single-electron transistor we propose model where charged two-level system is coupled to the device. The state depends self-consistently on transistor, leading stable gate-voltage-controlled configurations offset charge at low bias, and dynamical switching behavior high bias. This phenomenon may impact applications single electronics, as well fundamental measurements in quantum dots.
We have observed anomalous transport properties for a 50 nm Bi dot in the Coulomb-blockade regime. Over range of gate voltages, Coulomb blockade peaks are suppressed at low bias, and dramatic structure appears current higher bias. propose that state is determined self-consistently with nearby two-level system (TLS) to which it electrostatically coupled. As voltage swept, ground alternates between states TLS, leading skipped At fixed high may occur through cascade excited connected by dynamic...