Electrical breakdown strength enhancement in aluminum scandium nitride through a compositionally modulated periodic multilayer structure

Space Charge Modulated Electrical Breakdown

Electrical breakdown is one of the most important physical phenomena in electrical and electronic engineering. Since the early 20(th) century, many theories and models of electrical breakdown have been proposed, but the origin of one key issue, that the explanation for dc breakdown strength being twice or higher than ac breakdown strength in insulating materials, remains unclear. Here, by emplo...

Compositionally Modulated Alloy Synthesis

IPTME, Loughborough University of Technolom, LEI 1 3TU, UK " 9 7 z777$ __ Abstract P.9 F" Compositionally modulated alloy (CMA) coatings can be synthesised electrochemically The technique is performed by electrodeposition from a plating bath usually containing two different metal ions The alloy modulation is attained through pulsing the voltage or current between two or more pre-optimised level...

Scandium Nitride Thin Films for Thermoelectrics

Electronic structure of aluminum nitride: Theory and experiment

We report the results of a vacuum ultraviolet (VIJV) study of single crystal and polycrystalline AlN over the range 4-40 eV and compare these with theoretical optical properties calculated from first principles using an orthogonalized linear combination of atomic orbit& in the local density approximation. The electronic structure of AIN has a two-dimensional (2D) character indicated by logarith...

Enhancement of single–photon emission from nitrogen–vacancy centers with TiN/(Al,Sc)N hyperbolic metamaterial

P A P ER Abstract The broadband enhancement of single–photon emission from nitrogen-vacancy centers in nanodiamonds coupled to a planar multilayer metamaterial with hyperbolic dispersion is studied experimentally. The metamaterial is fabricated as an epitaxial metal/dielectric superlattice consisting of CMOS-compatible ceramics: titanium nitride (TiN) and aluminum scandium nitride (AlxSc1-xN). ...