Why Blu ray LED won this year's Nobel prize (three)

New technology of lighting through industrialization

Nakamura Shuji in a short span of four years to overcome the problems of the preparation of the major materials, one is the growth of high quality GaN thin film, the other is the regulation of Gan hole conductivity of the two. For the former, he achieved high electron mobility of GaN films on sapphire substrates by up to 500 experiments. The latter problem is because he found that as long as the concentration of hydrogen in the process can be controlled to obtain a large blue diode material. In April 1994, in the village of San Francisco in the United States two repair materials conference held in the spring to open the blue laser he invented that moment, scientists throughout the hall like a child watching fireworks, continue to emit the sound of praise.

It is reported that Nakamura Shuji and Shanghai, many institutions have cooperative relations, he serves as an engineering of Ministry of education of advanced lighting technology research center at the Fudan University in Shanghai consultants, many organizations have served as a consultant, regular academic exchange. In addition to his work in Santa Barbara, he has run a technology company to promote some of the new lighting technology.

Nakamura Shuji's invention of gan led to the human contribution is obvious: after the emergence of blue LED, you can stimulate the red light and green light through phosphorus, and thus produce a mixture of white and other colors of light.

Or with the original red LED and green LED together to produce white light and other colors of light. Blu ray LED also has another application, for example, Blu ray disc, developed from blue LED UV LED can also be efficient water purification; transmission efficiency of optical fiber communication is improved; long service life and light solid white high electro-optical conversion efficiency will greatly promote the development of green energy.

Winning reason

Three winners in the discovery of new efficient, environmentally friendly light source, that is, blue light-emitting diode (LED) made great contributions. With the help of blue LED, white light can be created in a new way. Using LED lights, we can have a longer lasting and more efficient lighting instead of the original light source.

Because of this year's Nobel prize in physics, people in the manufacture of energy-saving light source into the realm of freedom". Although the three scientists since the invention of blue light emitting diode (LED) to get the Nobel eye popping, but it is because of this invention, human beings can produce any desired LED light - blue light emitting diode not only makes the white light can be created in a new way, but also because of the emergence of the blue LED, people can also complete RGB, the spectral range of LED light source to manufacture more widely, it is to enter the realm of freedom.

What is interesting is the message of the winning project: the Nobel prize in physics in recent years has become increasingly popular in applied research that can lead to dramatic changes in human life.