UW-Madison researchers have created structures and methods for AlGaN channel high electron mobility transistors (HEMTs). Typically, extreme bandgap AlGaN channel HEMTs show very high ohmic contact res...
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UW-Madison researchers have designed a bidirectional switch based on an AlGaN/GaN structure with BaTiO3 to achieve the ideal target of ~1-1.1x resistance. The design is scalable from 100 V - 10 kV. T...
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Semiconducting graphene nanoribbons are promising candidates for succeeding and/or complementing silicon (Si) in logic microprocessors and Group III-V compounds in radio frequency devices and for inte...
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Optical metasurfaces enable unprecedented control over electromagnetic wave manipulation. By leveraging powerful resonance mechanisms supported by subwavelength structures arranged in two-dimensional ...
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Attempts have been made to develop SAM-on-sapphire substrates that include a thin film of SAM on an underlying bulk sapphire support for InGaN growth. However, the SAM films grown by the published met...
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Typically, bidirectional switching elements are fabricated using two FET devices, for example, arranged in series with opposite polarities, each device shunted by a diode to steer current to the prope...
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UW-Madison researchers have developed new methods of forming films of aligned elongated nanoparticles. These films may include carbon nanotubes and could find use in electronic devices, such as trans...
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Semiconductor deep-ultraviolet (DUV) light-emitting diodes (LEDs) operating at sub-250 nm wavelengths are of interest due to their applications in areas such as sterilization, biosensing, medical trea...
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UW-Madison researchers have designed optoelectronic transducers that convert a femtosecond (fs)-timescale laser pulse into an a.c. electrical current pulse with an extremely high frequency and a high ...
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UW-Madison researchers have developed a compact thermal laser on a chip capable of steering emitted thermal radiation at a continuous range of angles through the application of a voltage. The device i...
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UW-Madison researchers have developed a new synthesis method, hybrid PLD (Pulsed Laser Deposition), that synergistically combines the advantages of thermal evaporation and conventional PLD to overcome...
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UW Madison researchers have developed methods for forming films of aligned carbon nanotubes. The methods also provide for making electronic devices that incorporate the films as active layers. The fil...
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UW-Madison researchers have developed a fundamentally new type of mmW emitter, which only shows moderate power drop even at the 300 GHz frequency. The device architecture is a multilayer stack of meta...
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UW researchers have now demonstrated that nanotubes collected at a liquid/liquid interface self-organize to form two-dimensional (2D) nematic liquid crystals that globally align with flow. The 2D liqu...
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Semiconductor heterojunction structures comprising lattice mismatched, single-crystalline semiconductor materials and methods of fabricating the heterojunction structures are provided. The heterojunct...
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Superlattice structures composed of single-crystal semiconductor wells and amorphous barriers are provided. Also provided are methods for fabricating the superlattice structures and electronic, optoel...
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Tandem solar cells comprising two or more solar cells connected in a solar cell stack via pn diode tunnel junctions and methods for fabricating the tandem solar cells using epitaxial lift off and tran...
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Stretchable high frequency transmission lines and high-frequency filters comprising the transmission lines are provided. The transmission lines provide low power loss, even at microwave and millimeter...
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Switches for electromagnetic radiation, including radiofrequency switches and optical switches, are provided. Also provided are methods of using the switches. The switches incorporate layers of high q...
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A self-assembling element fabricated using integrated circuit techniques may provide a small diameter helical conductor surrounding an electron beam for the construction of a vacuum electronic device ...
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Patterning methods for forming patterned device substrates are provided. Also provided are devices made using the methods. The methods utilize photoresist features have re-entrant profiles to form a s...
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A molecule sequencer uses a planar nanochannel for aligning molecules to flow past impedance interrogation electrodes mounted across the channel for rapid sequencing. The electrodes may be fixed to th...
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A Hydride Vapor Phase Epitaxy (HVPE) system is provided which comprises a deposition assembly comprising a plurality of deposition chambers and a plurality of separation chambers mounted together, eac...
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A transducer supported by the eardrum provides a piezoelectric material exchanging energy with the eardrum through a nanoscale membrane, the latter serving to boost the coupling between the piezoelect...
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P-N diodes that include p-type doped diamond and devices, such as p-n-p heterojunction bipolar transistors, that incorporate the p-n diodes are provided. In the p-n diodes, the diamond at the p-n junc...
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