University of California Santa Barbara (UCSB) has developed an n-type gallium nitride (n-GaN) tunnel junction (TJ) intracavity contact to reduce threshold current and increase differential efficiency in its m-plane III-nitride ...
Tags: VCSEL, n-GaN, GaN substrates, MOCVD, MBE
In booth C309 (Hall Ternes) at European Microwave Week (EuMW 2015) in Paris, France (6-11 September), Infineon Technologies AG of Munich, Germany has introduced its first devices in a family of gallium nitride on silicon carbide ...
Tags: EuMW 2015, GaN-on-silicon, GaN-on-SiC, PA
Seoul Viosys Co Ltd and Sensor Electronic Technology Inc (SETi) of Columbia, SC, USA (in which Seoul Viosys acquired a majority stake just last month) are to jointly commercialize and expand sales of Violeds technology. The technology, ...
Researchers in Japan have been developing ways to increase minority carrier lifetimes in lightly doped silicon carbide (SiC) with a view to insulated-gate bipolar transistors (IGBTs) [Tetsuya Miyazawa et al, J. Appl. Phys., vol118, p085702, ...
Technische Universit Wien (TU Wien) in Austria has improved its bi-functional 6.8μm quantum cascade laser and detector (QCLD) technology [Benedikt Schwarz et al, Appl. Phys. Lett., vol107, p071104, 2015]. It is hoped that monolithic ...
Cambridge Electronics Inc (CEI) – which was spun off from Massachusetts Institute of Technology (MIT) in 2012 – has announced a range of gallium nitride (GaN) transistors and power electronic circuits targeted at cutting energy ...
Researchers in the USA and Korea have developed a hydrogen high pressure annealing (HPA) process for aluminium oxide/hafnium dioxide (Al2O3/HfO2) gate stacks on indium gallium arsenide (InGaAs) quantum wells [Tae-Woo Kim et al, IEEE ...
Tags: Transistors, capacitors
McGill University in Canada has developed light-emitting diodes based on aluminium indium gallium nitride (AlInGaN) nanowires on silicon with spontaneous core-shell structures that inhibit non-radiative surface recombination, improving ...
University of Oklahoma in the USA has developed interband cascade (IC) lasers on indium arsenide (InAs) substrates with low threshold and high-current operation [Lu Li et al, Appl. Phys. Lett., vol106, p251102, 2015]. The researchers claim ...
University of Oklahoma in the USA has developed interband cascade (IC) lasers on indium arsenide (InAs) substrates with low threshold and high-current operation [Lu Li et al, Appl. Phys. Lett., vol106, p251102, 2015]. The researchers claim ...
Applied Optoelectronics Inc (AOI) of Sugar Land, near Houston, TX, USA, a manufacturer of fiber-optic access network products (including components, modules and equipment) for the internet data-center, cable TV broadband, and ...
Tags: Applied Optoelectronics, lasers
University of California Santa Barbara (UCSB) in the USA has improved hole concentrations in p-type gallium nitride (p-GaN) by using indium as a surfactant in ammonia-based molecular beam epitaxy (NH3MBE) [Erin C. H. Kyle et al, Appl. Phys. ...
Tags: Gallium Nitride, Indium Surfactant
Solar Junction Corp (SJC) of San Jose, CA, USA, which makes what are reckoned to be the highest-efficiency commercially available multi-junction solar cells for terrestrial concentrated photovoltaic (CPV) applications, has announced plans ...
KTH-Royal Institute of Technology in Sweden has used corrugated epitaxial lateral overgrowth (CELOG) to create heterojunctions consisting of n-type indium phosphide (n-InP) and p-type silicon (p-Si) [Y. T. Sun et al, Appl. Phys. Lett., ...
Tags: corrugated epitaxial, silicon
A team at IBM Research's Zurich Research Laboratory in Rüschlikon, Switzerland, with support from the firm's T. J. Watson Research Center in Yorktown Heights, New York, has developed what it says is a relatively simple, robust and ...
Tags: IBM III-Vs-on-Si, Electrical, Electronics, IBM