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Modified Fibonacci Switched Capacitor Converter with Reduced Switch Stress and Increased Efficiency

Researchers at the University of California, Davis have developed a technology that introduces an alternative topology for Fibonacci switched-capacitor converters that significantly reduces switch losses and improves efficiency.

Spectral Kernel Machines With Electrically Tunable Photodetectors

       Spectral machine vision collects both the spectral and spatial dependence (x,y,λ) of incident light, containing potentially useful information such as chemical composition or micro/nanoscale structure.  However, analyzing the dense 3D hypercubes of information produced by hyperspectral and multispectral imaging causes a data bottleneck and demands tradeoffs in spatial/spectral information, frame rate, and power efficiency. Furthermore, real-time applications like precision agriculture, rescue operations, and battlefields have shifting, unpredictable environments that are challenging for spectroscopy. A spectral imaging detector that can analyze raw data and learn tasks in-situ, rather than sending data out for post-processing, would overcome challenges. No intelligent device that can automatically learn complex spectral recognition tasks has been realized.       UC Berkeley researchers have met this opportunity by developing a novel photodetector capable of learning to perform machine learning analysis and provide ultimate answers in the readout photocurrent. The photodetector automatically learns from example objects to identify new samples. Devices have been experimentally built in both visible and mid-infrared (MIR) bands to perform intelligent tasks from semiconductor wafer metrology to chemometrics. Further calculations indicate 1,000x lower power consumption and 100x higher speed than existing solutions when implemented for hyperspectral imaging analysis, defining a new intelligent photodetection paradigm with intriguing possibilities.

Photothermal Patterning Flow Cell

Researchers at the University of California, Davis have developed a photothermal patterning flow cell that enables precise and efficient patterning of polymer films, compatible with existing cleanroom photolithography equipment.

A Bio-Based Manufacturing Process To Create Foam Using Chitin Sourced From Shellfish Waste

A bio-based closed-cell foam created using chitin derived from shellfish waste. Chitin is the second most abundant polysaccharide after cellulose and acts as the structural component of the exoskeleton of arthropods. Chitin has mechanical properties that can be processed into a foam. Such a foam can be used for biodegradeable packaging as well as other uses. 

Reconfigurable Soft Li-Ion Battery

The invention is flexible/stretchable soft battery for devices that seamlessly integrate for human-machine interface applications.  Such reconfigurable and soft batteries will play an important role as power sources can take up a large space in a system. To this end, the conformable/stretchable batteries of the embodiments provide an ideal power sources for these devices. Wearable devices attract lots of interest with a market share of over $116.2 billion/year, projected to be $265.4 billion by 2026

Cephalopod-Inspired Adaptive Infrared Camouflage Materials and Systems

This technology is a new class of materials capable of thermal regulation and active camouflage. These cephalopod-inspired materials, configurable to different geometries, can be used in many sectors, ranging from consumer to industrial to military applications.

High Thermal Conductivity Boron Arsenide For Thermal Management, Electronics, And Photonics Applications

UCLA researchers in the Department of Mechanical & Aerospace Engineering have developed a novel boron arsenide (BAs) material that has an ultra-high thermal conductivity of 1300 W/mK and low cost of synthesis and processing.

Flexible And Stretchable Interconnects For Flexible Systems And Flextrate(Tm)

Researchers led by Professor Subramanian Iyer from the Department of Electrical Engineering at UCLA have developed a novel fabrication technique to create stretchable electronics.

An Implantable Electrocorticogram (ECoG)-Brain-Computer Interface System for Restoring Lower Extremity Movement and Sensation

A fully implantable brain-computer interface (BCI) with onboard processing to control a robotic gait exoskeleton as a walking aid for individuals with chronic spinal cord injury (SCI). This technology would alleviate SCI patient’s dependence on wheel chairs, reducing the risk of secondary medical complications that account for an estimated $50 billion/year in healthcare costs.

Electrical Conduction In A Cephalopod Structural Protein

Fabricating materials from naturally occurring proteins that are inherently biocompatible enables the resulting material to be easily integrated with many downstream applications, ranging from batteries to transistors. In addition, protein-based materials are also advantageous because they can be physically tuned and specifically functionalized. Inventors have developed protein-based material from structural proteins such as reflectins found in cephalopods, a molluscan class that includes cuttlefish, squid, and octopus. In a space dominated by artificial, man-made proton-conducting materials, this material is derived from naturally occurring proteins.

A Digital Polar and a ZVS Contour Based Hybrid Power Amplifier

Researchers in the UCLA Department of Electrical Engineering have created a hybrid digital polar and zero switching voltage (ZVS) contour power amplifier, offering higher efficiency for up to 36 dB peak-to-average ratio.

A Low-Cost-Wafer-Level Process For Packaging MEMS 3-D Devices

A low-cost solution to robust electronic packaging of 3-D MEMS devices using micro-glassblown “bubble-shaped” structures.

Tunable Thz Generation In Chip-Scale Graphene

UCLA researchers in the Department of Electrical Engineering have developed a novel tunable and efficient terahertz (THz) plasmon generation on-chip via graphene monolayers.

Efficient and Stable Perovskite Solar Cells with All Solution Processed Metal Oxide Transporting Layers

UCLA researchers in the Department of Materials Science and Engineering have developed a novel lead halide perovskite solar cell with a metal oxide charge transport layer.

Design of Semi-Transparent, Transparent, Stacked or Top-Illuminated Organic Photovoltaic Devices

UCLA researchers in the Department of Materials Science and Engineering have developed novel tandem transparent and semi-transparent organic photovoltaic (OPV) devices.

Novel Polymers for Polymer Solar Cells, Transistors, and Sensors

UCLA researchers in the Department of Materials Science and Engineering have developed a novel class of conjugated polymers for photo-electronic device applications.

Operation Frequency Band Customizable and Frequency Tunable Filters with EBG substrate

The technology relates to cavity resonators and filters for improved processing of electromagnetic signals. Specifically, the invention is a cavity resonator or filter that is constructed on electromagnetic bandgap substrate that includes an external controlling assemble can change the work frequency of the cavity resonator or filter. This enables device access to frequencies with a very broad range.

Synthesis Technique to Achieve High-Anisotropy FeNi

Researchers at the University of California, Davis have developed an innovative synthesis approach to achieve high anisotropy L1 FeNi by combining physical vapor deposition and a high speed rapid thermal annealing (RTA).

GaN-based Vertical Metal Oxide Semiconductor and Junction Field Effect Transistors

The first true vertical GaN-based transistors, where gating is also performed on electrons traveling perpendicular to the surface in a vertical channel.

Nanostructured Polymer Electrodes

Professor Kaner and colleagues at UCLA and Caltech have developed novel electrode structures for use in the storage of ions made with novel nanostructured polymer films. This technology takes advantage of a new class of nanofiber conjugate polymer materials to form amphoteric electrodes that demonstrate improved cycling properties and remarkable application flexibility.  

Micro implantable neural interface with electrophysiological and fluid delivery capability

Researchers at UCI have developed a novel way to make microelectrodes and integrate the fluidic channels. In addition to delivering drugs and growth factors, a neural probe with fluidic and electrical capabilities was developed to further extend the longevity of neural electrodes by reducing the tissue/electrode mechanical mismatch of traditional neural electrodes. In addition to extending the life of probe, it is a biocompatablie insulator with the potential for MRI and other imaging compatibility.

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