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Rise of Red LED Applications Boosts Revenues

Nov 27, 2016

Taiwanese LED chip manufacturers that successfully transitioned from blue LEDs to red LEDs have set new revenue records from their budding AlInGaN LED business. Those that chose to lower blue LED revenue have improved international ...

Tags: LED chip, IR LED

Chinese LED Maker HC SemiTek Orders Veeco MOCVD Systems for High-Volume Production

Sep 20, 2016

Epitaxial deposition and process equipment maker Veeco Instruments Inc of Plainview, NY, USA says that solid-state lighting manufacturer HC SemiTek Corp of Wuhan, China (which supplies full-spectrum visible light LED chips) has ordered ...

Tags: Veeco, MOCVD system, HC SemiTek

Gallium Arsenide Phosphide Solar Cells on Silicon with Record 12% Efficiency

Aug 26, 2016

Yale University and University of Illinois Urbana in the USA have improved the efficiency of gallium arsenide phosphide (GaAsP) solar cells on silicon (Si) by reducing threading dislocation densities (TDDs) [Kevin Nay Yaung et al, Appl. ...

Tags: GaAsP solar cells, GaAsP, MBE, MOCVD

Wafer Reclaim for Indium Gallium Aluminium Phosphide Light Emission

Aug 19, 2016

Researchers in Germany have been developing an epitaxial lift-off (ELO) process that would allow gallium arsenide (GaAs) substrates to be reused for indium gallium aluminium phosphide (InGaAlP) thin-film light-emitting diode (LED) ...

Tags: ELO, GaAs, InGaAlP

Metals From Cigarette Butts Might Be Leaching Into Marine Food Chain, New Study

Jul 18, 2016

A new study has found that metal from the almost 5 trillion cigarette butts littered annually across the world may be leaching into the food chain. Published late last week by the online journal, Tobacco Control, Iranian scientists ...

Tags: Marine Food, Metals

Indium Gallium Arsenide MOSFET Used as Radio-Frequency Switch

Mar 30, 2016

Rearchers in China claim the first radio frequency (RF) switch device based on indium gallium arsenide (InGaAs)-channel metal-oxide-semiconductor field-effect transistor (MOSFET) technology [Zhou Jiahui et al, J. Semicond. 2016, vol37, ...

Tags: InGaAs MOSFET RF switch

Single-Crystal Gallium Arsenide on Quasi-Nominal Silicon

Dec 16, 2015

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

IBM Developed a Process for Growing Compound Semiconductor Crystals

Jun 12, 2015

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

McGill University Creats The First Electrically Injected Rolled-up Semiconductor Laser

Jan 26, 2015

McGill University in Canada claims to have created the first electrically injected rolled-up semiconductor tube laser [M. H. T. Dastjerdi et al, Appl. Phys. Lett., vol106, p021114, 2015]. Although rolled-up heterostructure lasers have been ...

Tags: optical pumping, tube lasers, Electrical

EPA Will Hold a Public Meeting Beginning at 6:00 P.M. on Monday

Sep 17, 2014

The U.S. Environmental Protection Agency (EPA) will hold a Public Meeting beginning at 6:00 p.m. on Monday, September 22, 2014 at City Hall, 226 E. Prichard Ave., Prichard, Alabama. Representatives from EPA and ExxonMobil will be available ...

Tags: EPA, Public Meeting, Service

Researchers in USA and Saudi Arabia Explored The Use of VdWE to Grow GaAs On Silicon

Sep 10, 2014

Researchers in USA and Saudi Arabia have been exploring the potential of using 'van der Waals epitaxy' (vdWE) to grow gallium arsenide (GaAs) on silicon [Yazeed Alaskar et al, Adv. Funct. Mater., published online 26 August 2014]. The team ...

Tags: Graphene, Silicon

Jairo Sinova Realised for The First Time a New, Efficient Spin-Charge Converter

Sep 3, 2014

The research group of professor Jairo Sinova of the Institute of Physics at Johannes Gutenberg University Mainz, in collaboration with researchers from the UK, Prague, and Japan, has realised for the first time a new, efficient spin-charge ...

Tags: Spin-Charge Converter, GaAs, Electronics

EPA Released The Second Integrated Urban Air Toxics Report to Congress

Aug 22, 2014

Today, the U.S. Environmental Protection Agency (EPA) released the Second Integrated Urban Air Toxics Report to Congress - the final of two reports required under the Clean Air Act (CAA) to inform Congress of progress in reducing public ...

Tags: EPA, Urban Air, Certification

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