The University of Manchester and the University of Cambridge in the UK have been comparing efficiency droop in low-temperature photoluminescence (PL) experiments on non-polar m-plane and polar c-plane indium gallium nitride (InGaN) quantum ...
Researchers at University of California Santa Barbara (UCSB) and Rutgers University in the USA believe that charge polarization in III-nitride materials has not been adequately understood up to now [Cyrus E. Dreyer et al, Phys. Rev. X vol6, ...
Tags: semiconductors, Electronics
BluGlass Ltd of Silverwater, Australia – which was spun off from the III-nitride department of Macquarie University in 2005 to develop a low-temperature process using remote plasma chemical vapor deposition (RPCVD) to grow materials ...
Researchers based in Taiwan and USA have increased the modulation bandwidth of indium gallium nitride (InGaN) light-emitting diodes (LEDs) [Jin-Wei Shi, IEEE Electron Device Letters, published online 26 May 2016]. The enhanced bandwidth was ...
Xidian University in China has used pulsed metal-organic chemical vapor deposition (MOCVD) to increase indium gallium nitride (InGaN) room-temperature channel mobility to 1681cm2/V-s, which is claimed to be a record [Yachao Zhang et al, ...
Demand of LED has resumed in the second quarter. Leading Taiwanese LED chip maker Epistar reached full production capacity in AlGaInP LEDs. Meanwhile, Unity Opto is expected to see two-digit growth in the second quarter as its order ...
Tags: LED industry, LED chip
Researchers based in China, Singapore and Turkey have used an extremely thin layer of silicon dioxide (SiO2) insulator as a charge inverter in indium gallium nitride (InGaN) light-emitting diodes (LEDs), improving light output power and ...
Osram Opto Semiconductors GmbH of Regensburg, Germany has improved the luminous efficacy of its high-power light-emitting diodes (LEDs) by as much as 7.5% by reducing the unwanted effect of efficiency droop at high currents. This ...
Tags: Osram LED, Blue High-Power LEDs
In 2014, the Nobel Prize in physics was awarded for the discovery of the gallium-nitride-based blue-light LED and its use for new, efficient LED-based white lamps. The development efforts in this field, however, do not stop there. The ...
Tags: LED, Nobel Prize
Shigeya Kimura, Hisashi Yoshida, Toshihide Ito, Aoi Okada, Kenjiro Uesugi and Shinya Nunoue Metal organic chemical vapor deposition is used to grow aluminum gallium nitride interlayers within indium gallium nitride/gallium nitride ...
South China University of Technology has shown improved power and efficiency performance for indium gallium nitride (InGaN) light-emitting diodes (LEDs) with 1.2% indium-content multiple-quantum-well (MQW) barriers [Zhiting Lin et al, J. ...
The open-access paper The role of photonics in energy, authored by a team including Zakya Kafafi of Lehigh University, editor of the Journal of Photonics for Energy, traces the development of the science of light from the Arab scholar Ibn ...
Vishay Intertechnology Inc of Malvern, PA, USA has launched a new metal-core-based cool-white LED power module featuring 12 high-brightness LEDs with high luminous flux of 4000lm each at 1A. To simplify designs and manufacturing ...
Tags: Vishay, LED Power Module
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
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