InGaN is indispensable in the village, said the Japanese media reported a biased report

"InGaN is a miracle material. Without this material, you can not achieve high brightness blue LED. "

The Nikkei technology online news, won the 2014 Nobel prize in physics for the development of the blue LED of the University of California-Santa Barbara (UCSB) Professor Nakamura Shuji, held in Tokyo in July 24, 2015 of the seminar on "GaN off the energy revolution" speech, said that sentence. Nakamura stressed that the adoption of InGaN (indium gallium nitride) in the light-emitting layer made of double heterostructure, only to achieve a practical level of brightness of the blue LED.

In the village said, before using InGaN double heterostructure made to improve the brightness of blue LED, blue LED GaN must be in the crystal is called "crystal defect dislocation" density reduced to 103 /cm2 in order to improve the degree of brightness. When the InGaN double heterostructure is used, the dislocation density can be high brightness even if it reaches 109 /cm2. InGaN this feature for the realization of blue LED, and after the blue violet semiconductor laser, blue semiconductor lasers have contributed, so the village will be evaluated as a miracle material".

About InGaN can cause high brightness light in many crystal defects, in the village called the "and the local effect of In, and referred to the Tohoku University Japan Professor Zhifu English (published research results of the research at the University of Tsukuba).

Nakamura pointed out that although InGaN has played an important role in the realization of high brightness blue LED, but there are few reports to promote the importance of this material. In the village the news of the Japanese media reported the Nobel prize in physics in 2014 when the way was questioned, he said, "not only is a Japanese TV and newspapers and other media, even the Japanese academic journals and professional magazines are also said to be 'akasaki and Amano developed blue LED, in the village of successful implementation the blue LED production. In the release of the Nobel foundation, and there is no such content, I do not just do the work of mass production. The report is biased, very regrettable".

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