The universities of Virginia and of Texas in the USA have been developing avalanche photodiodes (APDs) based on aluminium indium arsenide antimonide (AlInAsSb) alloys. Two papers from the group detail the implementation of a staircase ...
Researchers in the UK have claimed the first demonstration of laser diodes grown directly on silicon that perform up to 75°C and 120°C under continuous wave (cw) and pulsed operation, respectively [Siming Chen et al, Nature ...
Tags: Quantum dot lasers, GaAs, Silicon substrate, MBE
Researchers in Korea have been developing improved non-alloyed contacts for gallium arsenide (GaAs) complementary metal-oxide-semiconductor (CMOS) and high-electron-mobility transistors (HEMTs) [Seung-Hwan Kim et al, IEEE Electron Device ...
Researchers in Canada claim the highest reported optical-to-electric power conversion of more than 65% (Figure 1) for a 150W/cm2 (~1500 suns) tuned narrow spectrum input from high-powered laser diodes [S. Fafard et al, Appl. Phys. Lett., ...
Korea University has been working to improve metal contacts on aluminium gallium indium phosphide (AlGaInP) light-emitting diodes (LEDs) [Dae-Hyun Kim et al, Jpn. J. Appl. Phys., vol55, p032102, 2016]. In particular, the research team added ...
Tags: AlGalnP, Tantalum barrier, LED
The US Department of Energy's (DoE's) National Renewable Energy Laboratory (NREL), in collaboration with Washington State University (WSU) and the University of Tennessee, has improved the maximum voltage available from a cadmium telluride ...
Tags: Solar Cells, vacuum-seal
Supremex, a North American manufacturer and marketer of a broad range of stock and custom envelopes and growing provider of packaging and specialty products,announced strong results for the quarter and year ended December 31 , 2015 and ...
Tags: Supremex, envelope market
University of California Santa Barbara (UCSB) in the USA has been developing a hybrid technique to create III-nitride tunnel junctions (TJs) using a combination of metal-organic chemical vapor deposition (MOCVD) and molecular beam epitaxy ...
Tags: Gallium Nitride Tunnel, Hybrid
Researchers in France believe they have made preliminary steps towards establishing a silicon-on-insulator (SOI) complementary metal-oxide-semiconductor (CMOS) platform for quantum information processing. Quantum information processing ...
Université Grenoble Alpes in France and Applied Materials in the USA have been developing techniques to grow gallium arsenide (GaAs) on silicon substrates with a small offcut angle [Y. Bogumilowicz et al, Appl. Phys. Lett., vol107, ...
Tags: GaAs, Quasi-Nominal Silicon, MOVPE
University of Cyprus, Cyprus University of Technology, and University of Crete have been exploring the potential of Frster resonant energy transfer (FRET) from an indium gallium nitride (InGaN) single quantum well (SQW) to a light-emitting ...
Tags: InGaN, InGaN quantum well, FRET
Researchers in Germany are proposing scandium nitride (ScN) as a suitable buffer for gallium nitride (GaN) on silicon (Si) growth [L. Lupina et al, Appl. Phys. Lett., vol107, p201907, 2015]. The attraction of ScN is a very small mismatch ...
Tags: GaN devices, microscope
The main challenge of growing gallium nitride (GaN)-based high-electron-mobility transistors (HEMTs) on silicon substrates is the lattice mismatch between GaN and AlGaN that causes a high tensile stress and often leads to cracks. Now, by ...
Plessey Semiconductors Ltd in the UK has been improving its indium gallium nitride (InGaN)-on-silicon light-emitting diode (LED) technology [Liyang Zhang et al, Journal of the Electron Devices Society, vol3, p457, 2015]. A light output ...
Tags: GaN-on-silicon LEDs, Plessey MOCVD
Researchers based in USA have been studying performance improvements in aluminium gallium nitride (AlGaN) ultraviolet (UV) avalanche photodiodes (APDs) gained from using free-standing gallium nitride substrates instead of gallium nitride on ...
Tags: AlGaN, Ultraviolet photodetectors, HVPE