From Nobel Prize official website news, the 2014 winner of the Nobel Prize in physics: Japanese physicist Isamu Akasaki (Isamu Akasaki), Hiroshi Amano (Hiroshi Amano) and Shuji Nakamura (Shuji Nakamura, a US citizen). They invented a highly efficient blue light-emitting diode, the invention makes it bright white light source and energy a reality.
Awards reason
Illuminate the world of the new light source - the invention of efficient blue light emitting diodes to make energy-saving bright white light source possible.
Nobel Peace Prize this year for energy-saving and environmental protection and efficient blue light-emitting diode (LED) invention. According to Nobel's spirit, the Prize awarded best inventions of by using a blue LED, white more than a new way to produce. With the advent of LED lights, we now have more durable and more economical way of lighting.
When Isamu Akasaki (Isamu Akasaki), Hiroshi Amano (Hiroshi Amano) and Shuji Nakamura (Shuji Nakamura) in the early 1990s with their produce bright blue semiconductor, they led to a fundamental shift in lighting technology. Red and green diodes have a very long time, but not blue, it can not produce white light produced by diode. Try to have a great deal of effort from academia and industry, three decades blue light emitting diode is still a challenge.
They succeeded where the others failed. Isamu Akasaki and Hiroshi Amano work together at Nagoya University, Shuji Nakamura in Tokushima a small company Nichia Che? Micals work. Their inventions are innovative. Incandescent bulbs lit the 20th century, but the 21st century will be LED lamp is on.
White LED lights emit a bright white light, long life, energy saving. They still continue to improve, in order to obtain a higher power input unit in flux (lm / W). The latest record just over 300 lm / W, comparison, ordinary light bulbs only 16 lumens / watt, fluorescent light close to 70 lm / W. Since about a quarter of the world's electricity consumption is for lighting, so LED to conserve the earth's resources has made tremendous contributions. Since the LED life of up to one hundred thousand hours, which compared with ordinary light bulbs and fluorescent lamps one thousand hours of one million hours of material savings can be significant.
LED bulbs enhance the world's 1.5 billion population lack the quality of life of the grid resource: Because low-power device can be driven with cheap local solar energy.
Efficient blue LED invention just turned 20 years, but it has a new way to generate white light, which we all benefit.
Winner Introduction
Isamu Akasaki, January 20, 1929 born director of the Japan Meijo University nitride semiconductor research center. In 1952 he graduated from Kyoto University in 1964, received his Ph.D. in electrical engineering from Nagoya University. From the late 1960s he began to engage in the gallium nitride-based blue light-emitting diode work.
During the Tokyo Institute of Matsushita Co., Ltd., and he gradually improve the quality of the device structure of a gallium nitride crystal, using a metal organic vapor phase epitaxy (the MOVPE) as a gallium nitride crystal growth method. In 1981, he used metal organic vapor phase epitaxy gallium nitride crystals begin to grow back at Nagoya University.
Hiroshi Amano, Japan Meijo University Materials Science and Engineering physicist. September 11, 1960 was born in Hamamatsu, Japan
Shuji Nakamura, May 22, 1954 was born in Japan, Professor, Department of Materials Engineering, University of California, Santa Barbara United States, recognized as the inventor of the blue LED, the blue LED of the present invention is a major breakthrough in lighting technology.
Shuji Nakamura graduated in 1977 from the University of Tokushima, Japan, to obtain a bachelor's degree in electrical engineering, a master's degree two years later, after joining the company Nichia. During operation Nichia, Shuji Nakamura invented the first high-brightness GaN LEDs with bright blue light. The blue light-emitting diode is the key to white light emitting diodes, white light-emitting diode mass production in 1993.
During operation Nichia, Shuji Nakamura invented the first high-brightness GaN LEDs with bright blue light. The blue light-emitting diode is the key to white light emitting diodes, white light-emitting diode mass production in 1993.
(Translator: lock, heart spider, RhettZhang, away from the Chinese via nobelprize.org)
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