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Nick Holonyak Jr. (inventor of red LED)
Nick Holonyak Jr., who invented LED in 1962, was just the General Electric Company of the United States. , GE (also known as GE), an ordinary researcher, created the first red LED, and he also believes that it will be able to emit light of other wavelengths in the future, which means that LEDs will have many different colors of light. Incandescent lamps will definitely be replaced by LEDs. Nick Holonyak Jr. received his PhD in Electrical Engineering (EE) from the University of Illinois (Urbana Champaign). When he received his PhD in 1954 and entered Bell Telephone Laboratories, one of the most important private research institutions in the United States at the time, he Only 26 years old, he is full of outstanding talents. He entered the U.S. Army in 1954 and then joined GE in 1957, continuing to work until 1963. He also invented the first semiconductor laser device that emits red light, also known as LD, which is called a laser diode. , a key component in many later optical disc devices, printers or photocopier devices. After Nick Holonyak Jr. invented LED, he left GE in 1963 and became a professor in the Department of Electrical Engineering at his alma mater, the University of Illinois we mentioned earlier. He became a professional talent trainer and a scientist with a sense of ethics. Many of its students later established their own businesses in Silicon Valley, California, and participated in the technology wave driven by Silicon Valley. Nick Holonyak Jr. also invented thyristor, also known as thyristor, which has the ability to convert alternating current and direct current into each other, which will be helpful for future power energy storage. Currently, 30% of the world's electrical energy is transparent. Converted through thyristor fluid. Many of his contributions have won him the U.S. National Medal of Science, the U.S. National Medal of Technology, and the Lemelson Award in 2004, which can be said to be the invention award with the highest monetary value in the United States. It can be said that he is well-deserved. Now 79 years old, he is still continuing his research, hoping to integrate optical switches on the chip through LED technology, so that high-speed optical computers can be completed in the future.
On April 23, 2004, Nick Holonyak Jr. won the Lemelson Award and a bonus of US$500,000. Currently, he and the inventor of blue-light LED are considered strong contenders for the Nobel Prize.
The inventor of blue LED - Shuji Nakamura
Shuji Nakamura is a professor in the Department of Materials, School of Engineering, University of California, Santa Barbara (UCSB). He is widely known for developing high-brightness blue LEDs based on GaN while working at Nichia Corporation in Japan in 1993. At the time, developing a blue LED was considered impossible, as only red and green LEDs had been available for the previous 20 years. Professor Shuji Nakamura's innovation enables LED manufacturers to produce three primary color (red, green and blue) LEDs, making it possible to achieve 16 million colors. Perhaps most importantly, the LED industry is using this new technology to begin commercial production of white LEDs (semiconductor ecological light sources).
Shuji Nakamura
Born in 1954 in Seto Town, Ehime Prefecture, Japan
Graduated from Tokushima University College of Engineering with a bachelor's degree in electronic engineering in 1977
< p>Graduated with a master's degree in electronic engineering from Tokushima University in 1979, and entered Nichia in the same yearIn 1988, Nichia sponsored Nakamura to enter Florida State University in the United States to study organometallic meteorology (MOCVD). In 1991, he received The key technology for the growth of gallium nitride
The blue light-emitting diode was developed in 1993 - known as the invention of the century and Nobel Prize-level invention - this technology was once considered an impossible task in the 20th century --And commercialized
Started developing blue laser diodes in 1995.
Developed ultraviolet LED in 1997
Left Nichia in 1999, and has worked at the University of California, Santa Barbara since 2000 as a professor. At the same time, he guided cree one day a week
Won the Asahi Prize in Japan in 2001, the Benjamin Franklin Gold Medal in the United States in 2002, and the Millennium Technology Award in Finland in 2006
May 2006 On March 24, Dr. Shuji Nakamura and the University of California, Barbara (UCSB) research team produced the first non-polar (non-polar) and semi-polar (semi-polar) GaN substrate LEDs.
Award-winning
In 2004, he won the Benjamin Franklin Medal of Engineering, which was once awarded by Edison and Einstein. In 2006, Shuji Nakamura won Finland's "Millennium Technology Award", known as the "Nobel Prize in the technology industry". In 2009, he won the Harvey Award from the Israeli Technion. In addition, he also won the "Innovation Award" awarded by the British magazine "The Economist" to 6 scientists who have contributed to technological innovation. [1]