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Rapid recent improvement in photovoltaic efficiency in hybrid lead halide perovskite materials has provided the impetus for understanding other,...

Electronic structure and photovoltaic application of BiI3

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Applied Physics Letters
12/01/2016 at 14:17. Facebook
We report a crucial step towards single-object cavity electrodynamics in the mid-infrared spectral range using resonators that borrow...

Towards strong light-matter coupling at the single-resonator level with...

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Applied Physics Letters
11/28/2016 at 14:08. Facebook
Substituting the doped amorphous silicon films at the front of silicon heterojunction solar cells with wide-bandgap transition metal oxides can...

22.5% efficient silicon heterojunction solar cell with molybdenum oxide...

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Applied Physics Letters
11/28/2016 at 12:46. Facebook
Superhard materials are used for cutting, drilling and polishing. While the search for new superhard materials has mainly focused on crystal structure, researchers at UCLA and Virginia Commonwealth University look at controlling morphology. Through flux-growth, they have developed a method to synthesize superhard single crystalline nanowires in bulk. Share this #APLEP!

Superhard W0.5Ta0.5B nanowires prepared at ambient pressure

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Using e-beam nanolithography, the current injection/transport area in organic light-emitting diodes (OLEDs) was confined into a narrow linear...

Suppression of roll-off characteristics of organic light-emitting diodes...

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AgBiSe2 is a strong spin orbit coupling thermoelectric material; when exposed to hydrostatic pressure, it shows structural (hexagonal to rhombohedral) and electronic transitions (electronic topological and semiconductor to metal transition). Due to its multiple electronic transitions, AgBiSe2 may be a potential candidate for good thermoelectric performance and pressure switches at high...
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Pressure induced structural, electronic topological, and semiconductor to metal transition in AgBiSe2

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We investigate single- and multi-photon detection regimes of superconducting nanowire detectors embedded in silicon nitride nanophotonic circuits....

Waveguide-integrated single- and multi-photon detection at telecom...

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In an arid area like the Namib Desert, plants and animals obtain moisture needed for life from mist in the air. There, some plants have hairs or...

Mechanics of water collection in plants via morphology change of conical...

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Modern structural biology relies on Nuclear Magnetic Resonance (NMR), X-ray crystallography, and cryo-electron microscopy for gaining information...

Low-energy electron holographic imaging of individual tobacco mosaic...

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Functional acoustic surfaces are developed based on two-dimensional arrays of acoustically resonant micro-bubbles. They provide highly directional propulsive forces in fluids through acoustic streaming remotely powered by ultrasound. The surfaces can be directly attached to passive devices to permit wireless actuation with multiple degrees of freedom. Share this #APLEP!

Wireless actuation with functional acoustic surfaces

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We investigate an integrated optical chip immersed in atomic vapor providing several waveguide geometries for spectroscopy applications. The...

Atomic vapor spectroscopy in integrated photonic structures

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We report on violet-emitting III-nitride light-emitting diodes (LEDs) grown on bulk GaN substrates employing a flip-chip architecture. Device...

Bulk GaN flip-chip violet light-emitting diodes with optimized...

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Artificial muscles are a type of biologically inspired material or device that can reversibly contract or rotate by external stimuli, such as heat, electricity or humidity. Researchers at LSU demonstrated an unusual improvement of the tensile actuation of an artificial muscle made of twisted two-way shape memory polymer fiber. #APLEP

Artificial muscles made of chiral two-way shape memory polymer fibers

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We demonstrate a tunnel diode composed of a vertical MoS2/SiO2/Si heterostructure. A MoS2 flake consisting four areas of different thicknesses...

Observing the semiconducting band-gap alignment of MoS2 layers of...

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"Iron as a source of efficient Shockley-Read-Hall recombination in GaN" highlighted by Compound Semiconductor

Compound Semiconductor - News

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Piezoelectric coefficients of GaN are key parameters in GaN-based power devices, but it has been difficult to determine them with existing methods because of limited sample size. Researchers at 大阪大学(Osaka University)developed a novel methodology and succeeded in determining the coefficients for the first time using ultrasonically stimulated carrier movement. Share this #APLEP!

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An atomic force microscope is used to study the nanoscale frictional characteristics of graphene exfoliated onto weakly adherent silica substrates....

Temperature effects on the friction characteristics of graphene

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Strained InGaN/GaN core-shell nanowires (NWs) are promising candidates for solid state lighting applications due to their superior properties...

Strain mapping in an InGaN/GaN nanowire using a nano-focused x-ray beam

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We present a method of forming and controlling large arrays of gate-defined quantum devices. The method uses an on-chip, multiplexed charge-locking...

Multiplexed charge-locking device for large arrays of quantum devices

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Progress in multiferroics combines fundamental physics and applications in the electronic devices. Unfortunately, there are few multiferroic materials with room temperature operation. Therefore, exploration of various multiferroics materials is important for the development of this field. Researchers succeeded at stabilizing a metastable polar insulating Fe-based oxide in the epitaxial film...
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Evidence of ferroelectricity in ferrimagnetic κ-Al2O3-type In0.25Fe1.75O3 films

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