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MIT and Masdar Develop Photovoltaic 'step Cell'
Sep 9, 2016A team of researchers at the USA's Massachusetts Institute of Technology (MIT) and the Masdar Institute of Science and Technology in Abu Dhabi, United Arab Emirates has developed a new solar photovoltaic 'step cell' that combines two ...
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Gallium Arsenide Phosphide Solar Cells on Silicon with Record 12% Efficiency
Aug 26, 2016Yale 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
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Gallium Nitride Phosphide Absorber for Silicon-Based Solar Power
Oct 30, 2015Researchers in the USA have been working on gallium nitride phosphide (GaNP) as an absorbing material for solar power [S. Sukrittanon et al, Appl. Phys. Lett., vol107, p153901, 2015]. The aim of the team from University of California San ...
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NAE Is Awarding The 2015 Charles Stark Draper Prize
Jan 9, 2015The US National Academy of Engineering (NAE) is awarding the 2015 Charles Stark Draper Prize for Engineering to Isamu Akasaki, M. George Craford, Russell Dupuis, Nick Holonyak Jr and Shuji Nakamura for “the invention, development, and ...
Tags: LED Lighting, diode applications, Electrical
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Diodes, in General, Are Made of Very Thin Layers of Semiconductor Material
Dec 17, 2012Diodes, in general, are made of very thin layers of semiconductor material; one layer will have an excess of electrons, while the next will have a deficit of electrons. This difference causes electrons to move from one layer to another, ...
Tags: LED, Light Emitting Diode
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LED History About 50 Years Has Been Released
Dec 12, 2012Back in 1960 Electronics Weekly was born into a ferment of III-V semiconductor research that within two years would produce the first practical LED. In 1960 Dr Nick Holonyak of General Electric was developing an unusual material,GaAsP,as ...
Tags: General Electric, LED history, USA
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Whatever The Future Holds,It Looks Bright for LED
Dec 11, 2012The modern day LED was born 50 years ago this month.Jeanine Chrobak-Kando,Business Development Manager at Verbatim,describes how far the lighting technology has come in such a short time. Light-emitting diodes(LEDs)have become an ...
Tags: LED, celebrates 50th Anniversary, Jeanine Chrobak-Kando
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Nick Holonyak Invented The First Practical Visible-Spectrum Light-Emitting Diode
Oct 29, 2012EAST CLEVELAND, Ohio — October 9, 2012 — (NYSE:GE) — Fifty years ago today, 33-year-old GE scientist Dr. Nick Holonyak, Jr., invented the first practical visible-spectrum light-emitting diode (LED), a device that GE ...
Tags: LED Inventor, LED, LED systems, CFLs
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October Marks The Fiftieth Anniversary of The Invention of The LED
Oct 17, 2012October marks the fiftieth anniversary of the invention of the LED (light-emitting diode) by General Electric's Nick Holonyak, father of the GaAsP visible LED. That decade-old innovation in the lab is finally about to seriously disrupt ...
Tags: LED Panel light
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GE Scientists and Engineers Were Already Researching Semiconductor Applications
Oct 12, 2012Fifty years ago today, 33-year-old GE scientist Dr. Nick Holonyak, Jr., invented the first practical visible-spectrum light-emitting diode (LED), a device that GE colleagues at the time called "the magic one" because its light, unlike ...
Tags: LED Lighting
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SSL Industry Celebrates 50th Birthday of Visible LED Light 10 Oct 2012 LEDs Are Ubiquitous
Oct 11, 2012SSL industry celebrates 50th birthday of visible LED light 10 Oct 2012 LEDs are ubiquitous now, but fifty years and a few days ago they were completely unheard of until General Electric scientist Nick Holonyak Jr invented a visible red ...
Tags: LED Light
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LEDs - or Light-Emitting Diodes - Are Semiconductors That Generate Narrow-Spectrum Light
Sep 25, 2012LEDs - or Light-Emitting Diodes – are semiconductors that generate narrow-spectrum light when electrically biased in the forward direction of the p-n junction. This effect is a form of electroluminescence. A single LED is often a ...
Tags: LED
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LED Is a Semiconductor Diode
Aug 17, 2012LEDs How it works A Light Emitting Diode (LED) is a semiconductor diode that emits light when an electric current is applied in the forward direction of the device. The effect is a form of electroluminescence where incoherent and ...
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LED Lighting Is a Semiconductor Solid Glowing Device
Nov 7, 2011LED Lighting that is LED Lighting, full name is the Lighting Emitting Diode, is a semiconductor solid glowing device. It is using solid semiconductor chips as luminescence materials, in a semiconductor through the charge carriers happen out ...
Tags: led light
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LED Lighting Is a Semiconductor Solid Glowing Device
Nov 7, 2011LED Lighting that is LED Lighting, full name is the Lighting Emitting Diode, is a semiconductor solid glowing device. It is using solid semiconductor chips as luminescence materials, in a semiconductor through the charge carriers happen out ...
Tags: Learning Center, led light
