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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Flexible single-crystalline semiconductors used in high-performance micro- and macro-electronics have been intensely studied in recent years.  Thin-film transistors using single crystalline silic...
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Piezoresistive composite materials comprising electrically conductive particles in a polymeric phase change material are provided. Also provided are strain sensors incorporating the composites and met...
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Cell phones, radar and other wireless communication systems use high power solid-state amplifiers to boost and transmit signals. These amplifiers function in the radiofrequency (RF) and microwave rang...
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Composite materials comprising electrically conductive particles in a form-stable phase change materials (PCMs) are provided. Also provided as radiation sensors incorporating the composites and method...
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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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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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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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Radiation detectors based on high electron mobility transistors (HEMTs) are provided. Methods for detecting ultraviolet radiation using the HEMTs are also provided. The transistors are constructed fro...
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Provided herein are methods of directed self-assembly (DSA) on atomic layer chemical patterns and related compositions. The atomic layer chemical patterns may be formed from two-dimensional materials ...
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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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Power generators that incorporate porous electric generation layers composed of mechanoradical-forming polymers are provided. Also provided are methods for using the generators to convert mechanical e...
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Flexible electronics such as pliant displays, wearable electronics and new biomedical devices have gained popularity in recent years. Such devices are mounted on a supple plastic support layer and off...
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Electronic waste management remains an ongoing challenge both domestically and abroad. Scrap components of electronics such as computers, cellphones and refrigerators contain high amounts of heavy met...
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Photodetectors convert light signals into electrical signals and are indispensible components in most optoelectronic applications. These devices comprise various designs and materials. In recent years...
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Photoreceptors are specialized cells that capture and convert light into signals that can be processed by the retina and visual centers of the brain. Supportive cells called the retinal pigment epithe...
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Diamond is considered a good material candidate for power electronics, offering reliability, low weight and power switching efficiency. Single-crystalline diamond (SCD) has the best overall properties...
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Distributed Bragg reflectors (DBRs) are found in photodetectors, solar cells and other optical sensors. Stacks of DBRs are incorporated in vertical-cavity surface emitting lasers (VCSELs), which are a...
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Conventional light-emitting diodes (LEDs) are made of an upper ‘p-type’ layer, a middle ‘intrinsic region’ and a bottom ‘n-type’ layer. Such layered structures are called PIN diodes. Curre...
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During electrocorticography (ECoG), electrodes are placed directly on the exposed surface of the brain or spinal cord to record electrical signals. The practice is used to conduct neuroscience researc...
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Fast, flexible electronics operating at radio frequencies (greater than 1 GHz) are attractive because of their versatility, power savings and wide applicability. Uses include wireless and high-speed c...
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Photodetectors based on hydrogen-doped, single-crystalline germanium, including waveguide integrated photodetectors for photonic chip applications are provided. Hydrogen doping provides the single-cry...
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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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Blue and UV light-emitting diodes (LEDs) are key to modern, energy-saving lighting and are used in a range of applications including efficient home, farm and building lighting, high-speed networking, ...
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Light-emitting devices having a multiple quantum well (MQW) diode structure and methods of making and using the devices are provided. The devices include aluminum nitride/aluminum oxide bilayers on th...
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