Researchers at Nanchang University in China have been studying the effect of V-pits in indium gallium nitride (InGaN) light-emitting diodes (LEDs) on electroluminescence [Xiaoming Wu, Junlin Liu, and Fengyi Jiang, J. Appl. Phys., vol118, ...
Tags: InGaN quantum wells, InGaN LEDs, InGaN
Japan's Panasonic Corp has reported the suppression of current collapse up to 800V for a normally-off gallium nitride (GaN) transistor by embedding a hybrid drain in a gate-injection transistor (HD-GIT) structure [Kenichiro Tanaka et al, ...
Tags: Panasonic, GaN transistor, AlGaN
Researchers in Belgium have studied forward gate breakdown of enhancement-mode aluminium gallium nitride/gallium nitride (AlGaN/GaN) high-electron-mobility transistors with p-type GaN gate electrodes [Tian-Li Wu et al, IEEE Electron Device ...
Tags: P-Gan Gate, Electronics
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. ...
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
Ohio State University and University of Illinois at Chicago have developed deep ultraviolet (DUV) light-emitting diodes (LEDs) based on III-nitride semiconductor nanowires [Thomas F Kent et al, Nanotechnology, vol25, p455201, 2014]. The ...
Researchers based in China have found “remarkably reduced efficiency droop” from staircase (SC) thin indium gallium nitride (InGaN) quantum barrier (QB) light-emitting diodes (LEDs) [Kun Zhou et al, Appl. Phys. Lett., vol105, ...
Tags: High Current, remarkably reduced efficiency droop, Electrical
Researchers based in Singapore and Turkey have been developing a hole accelerator structure with a view to improving the performance of indium gallium nitride (InGaN) semiconductor light-emitting diodes (LEDs) [Zi-Hui Zhang et al, Appl. ...
Tags: Nitride LEDs, InGaN
North Carolina State University (NCSU) has been developing homo-epitaxy of non-polar aluminium nitride (AlN) with a view to deep ultraviolet (DUV, less than 300nm wavelength) optoelectronics [Isaac Bryan et al, J. Appl. Phys., vol116, ...
Tags: aluminium nitride, UV LED
Researchers in Japan and USA have claimed the first experimental demonstration of higher breakdown voltage for slant field-plate (FP) gallium nitride (GaN) high-electron-mobility transistors (HEMTs) over convention field-plate designs ...
Tags: GaN, HEMTs, Electronics
Researchers in Taiwan have applied a non-vacuum process to deposit aluminium oxide (Al2O3) passivation for nitride semiconductor high-electron-mobility transistors (HEMTs) [Bo-Yi Chou et al, IEEE Electron Device Letters, published online 11 ...
Tags: Electrical, Electronics, Transistor