- Advanced Sensor and Energy Harvesting Materials
- Nanowire Synthesis and Applications
- Photonic and Optical Devices
- Nanomaterials and Printing Technologies
- Ferroelectric and Piezoelectric Materials
- ZnO doping and properties
- Photochromic and Fluorescence Chemistry
- Nanofabrication and Lithography Techniques
- Silicon Nanostructures and Photoluminescence
- Graphene research and applications
- GaN-based semiconductor devices and materials
- Optical Coatings and Gratings
- Semiconductor Lasers and Optical Devices
- Advanced Materials and Mechanics
- 2D Materials and Applications
- Electronic and Structural Properties of Oxides
- Neuroscience and Neural Engineering
- Electrical and Thermal Properties of Materials
- Thin-Film Transistor Technologies
- Advancements in Photolithography Techniques
- Ga2O3 and related materials
- Retinal Development and Disorders
National High Magnetic Field Laboratory
2019
University of Wisconsin–Madison
2016-2018
Blinding disorders of the outer retina involve dysfunction and degeneration photoreceptors. One potential approach to treat these forms blindness is repopulate via a simple bolus injection donor However, this may not be ideal due highly polarized organization photoreceptors that include apical light sensing photopigments basal axon terminals. Furthermore, injections create uncertainty with regard area, density, retention cells. Here, novel robust microfabrication process developed 3D,...
Stretchable electrical interconnects based on serpentines combined with elastic materials are utilized in various classes of wearable electronics. However, such primarily for direct current or low‐frequency signals and incompatible microwave electronics that enable wireless communication. In this paper, design fabrication procedures described stretchable transmission line capable delivering signals. The has twisted‐pair integrated into thin‐film serpentine microstructure to minimize...
In this study, the light absorption property of Ge nanomembrane (Ge NM), which incorporates hydrogen (H), in near-infrared (NIR) wavelength range was analyzed. Due to presence a large amount structural defects, coefficient layer becomes much higher (10 times) than that bulk 1000 ~1600 nm. Increased further measured from released NM has H incorporation comparison Ge, proving enhanced incorporated Ge. Finally, metal-semiconductor-metal (MSM) photodetectors were demonstrated using on GeOI.
The surface condition under gate of AlGaN/GaN heterostructure plays a critical role in high-electron mobility transistor (HEMT). In this study, the effects ultraviolet/ozone (UV/O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> ) treatment applied to Al xmlns:xlink="http://www.w3.org/1999/xlink">0.3</sub> Ga xmlns:xlink="http://www.w3.org/1999/xlink">0.7</sub> N/GaN on electrical performance Schottky-gate HEMT were investigated....
A distributed Bragg reflector (DBR) consisting of a single-crystal Si nanomembrane (NM) layer formed by the transfer printing technique on top an evaporated amorphous (a-Si)/SiO2 DBR structure was demonstrated. The reflectivity different structures/pairs is measured and verified it simulation. An improved surface roughness employing NM suggests that smoother single crystalline not only minimizes light scattering loss but also can be epitaxial template for subsequent growth without...
Flexible graphene transistors built on a biocompatible Parylene C substrate would enable active circuitry to be integrated into flexible implantable biomedical devices. An annealing method improve the performance of transistor without damaging is also desirable. Here, we present fabrication with bottom-gate coplanar structure substrate. Also, current and its effect device have been studied. The localized heat generated by improves drain current, which attributed decreased contact resistance...
Photolithography based on optical mask is widely used in academic research laboratories due to its low cost, simple mechanism, and ability pattern micron-sized features a wafer-scale area. Because the resolution bound by diffraction limits of light source, nanoscale patterning using photolithography requires short-wavelength source combined with sophisticated elements, adding complexity cost. In this paper, novel method subwavelength process conventional i-line mercury lamp introduced,...
Diamond is an excellent material for a high-temperature thermistor given its superior properties. Despite long history of the development, diamond not widely used commercial sensors because it difficult to maintain optimum conditions operate at high temperature ranges in compact size. In this paper, we demonstrate methods improve practicality and feasibility thermistor, focusing on supporting components. The design, where sandwiched between contact pads, tested up 700 °C being characterized...
Stretchable high-frequency transmission lines with twisted-pair geometry integrated into stretchable serpentines for wearable electronics are presented by Z. Ma and co-workers on page 4635. This shielded line that is in the form of an ultrathin, conformal structure can effectively confine microwave frequency signals transmit them ultra-low radio-frequency radiation losses, which enables electrical interconnects epidermal electronic systems requiring high-speed wireless communication capabilities.