The blue LED, which has contributed to improving the quality of human life, was completed by the Japanese from basic research and development to practical use, so it won the prize together. This is the second time that a Japanese has won the Nobel Prize after Professor shinya yamanaka of Kyoto University (52 years old) won the physiology prize in 20 12. So far, the number of people who won the Nobel Prize in Japan has reached 22.
Akasaki, Amano and Nakamura took the stage to receive the award in turn. After the award ceremony, Nakamura said with a smile that it was finally over. Amano frankly felt extremely nervous, while Akasaki said that the road was long and Xiu Yuan was Xi.
The reason for winning the prize is that they invented the blue LED which can realize high brightness and energy-saving lighting. Members of the Nobel Prize in Physics praised the three men for "obtaining calcium nitride crystals (used as materials) with strong perseverance and a little luck when the whole world gave up".
LED development
Blue LED technology is simply a more energy-saving and efficient way to emit light, and can also be applied to technology products such as cameras and mobile phones. Lighting equipment made of blue LED technology is more energy efficient, which greatly reduces the energy consumption of the earth. According to the available data, 25% of the world's electricity is used for lighting. After using LED lamps, the electricity used for lighting is reduced to 4%, which undoubtedly changed the whole world.
From the discovery of LED effect in 1907 to the formal invention of LED in Shuji Nakamura in 1993, and then to the commercialization of LED lamps in 1999, LED has experienced nearly a hundred years of development. Before that, people have been using incandescent light bulbs invented by Edison in the last century. Incandescent light bulbs waste most of their energy on heating, and about 90% of their electricity is wasted.
The appearance of LED lights greatly reduces the power required for lighting. The power required by LED lamps with the same wattage is only110 of incandescent bulbs. At the same time, LED has the advantages of long life, environmental protection and maintenance-free, and quickly replaces incandescent bulbs. In 20 12, the government of China announced a total ban on the sale and import of incandescent lamps for general lighting with power exceeding 100 watt. Incandescent lamps, which have accompanied the older generation of China people for decades, are coming to the end of history.
As written in the Nobel Prize in Physics: "Incandescent lamps will illuminate the 20th century, while LED lamps will illuminate 2 1 century."