University of Glasgow and University of Cambridge in the UK have claimed the highest frequency performance to date for gallium nitride (GaN) high-electron-mobility transistors (HEMTs) on low-resistivity (LR) silicon (Si) [A. Eblabla et al, ...
Joachim Piprek, founder & president of NUSOD Institute LLC in the USA, has run simulations that he believes eliminate electron leakage as the primary cause of efficiency droop at high current in blue light-emitting diodes (LEDs) [Appl. ...
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 ...
Researchers in the USA have developed vertical Schottky and pn gallium nitride (GaN) diodes on silicon with performance comparable to devices grown on much more expensive substrates [Yuhao Zhang et al, IEEE Transactions On Electron Devices, ...
Tags: electronics, semiconductor
Researchers in China and Hong Kong have claimed the highest output power density and power-added efficiency reported to date for gallium nitride (GaN)-based enhancement-mode metal-insulator-semiconductor high-electron-mobility transistors ...
Tags: GaN MIS-HEMTs, PECVD ALD MOCVD
Researchers in USA and Saudi Arabia have been producing 610nm-wavelength red lasers with III-nitride nanowires (NWs) grown on silicon [Shafat Jahangir et al, Appl. Phys. Lett., vol106, p071108, 2015]. With a view to plastic fiber optical ...
Tags: plastic fiber, Electronics
Researchers in Korea and USA have developed sidewall emission-enhanced (SEE) deep ultraviolet (DUV) light-emitting diodes (LEDs) to improve light extraction efficiency DUV LEDs with wavelengths less than 300nm become very inefficient due ...
Tags: Light-Emitting Diodes, LEDs
Researchers based in Japan claim the highest output power and external quantum efficiency (EQE) so far for deep ultraviolet (DUV) sub-270nm-wavelength light-emitting diodes (LEDs) during DC operation [Shin-ichiro Inoue et al, Appl. Phys. ...
Tags: DUV LEDs, DUV devices
University of California Santa Barbara (UCSB) has used indium tin oxide (ITO) as part of the cladding for semi-polar indium gallium nitride (InGaN) laser diodes (LDs) [A. Pourhashemi et al, Appl. Phys. Lett., vol106, p111105, 2015]. The ...
Tags: Indium, InGaN substrates, Electrical
Researchers at University of Notre Dame (UND) in the USA have claimed record high breakdown voltage for aluminium gallium nitride (AlGaN/GaN) lateral Schottky barrier diodes (SBDs) on silicon [Mingda Zhu et al, IEEE Electron Device Letters, ...
Tags: silicon diodes, GaN substrates
Due to their compactness and low cost of ownership, UV LEDs continue to penetrate the booming UV curing business, through replacement of incumbent technologies such as mercury lamps, according to 'UV LED - Technology, Manufacturing and ...
Researchers at Chinese Academy of Sciences’ Institute of Semiconductors have achieved a 42% enhancement in light output from flip-chip indium gallium nitride (InGaN) light-emitting diodes (LEDs) by incorporating a photonic crystal ...
Tags: photonic crystal(PHC)structure, light-emitting diodes, Electrical
Rensselaer Polytechnic Institute in the USA has developed nitride semiconductor solar cells with high quantum efficiency for short wavelengths (370-450nm) and concentrated photovoltaics at temperatures up to 400°C [Liang Zhao et al, ...
Tags: PV Performance, Electrical
Researchers in Germany have developed gallium nitride (GaN) high-electron-mobility transistors (HEMTs) on silicon carbide (SiC) layers on silicon wafers [Wael Jatal et al, IEEE Electron Device Letters, published online 11 December 2014]. ...
Tags: Cubic Silicon Carbide, Electrical
China’s Xidian University has been developing III-nitride double heterostructures (DHs) with indium gallium nitride (InGaN) channels with a view to high-electron-mobility transistors (HEMTs) [Yi Zhao et al, Appl. Phys. Lett., vol105, ...
Tags: HEMTs, InGaN channels