Japan developed without the use of rare red LED

Tokyo Institute of Technology and Kyoto University research team on the 21st news release, have been developed without the use of expensive rare elements of red light-emitting semiconductor. It is reported that, in the future is expected to use the Earth's rich reserves nitride nitrogen made at low cost applied to the red light-emitting diode (LED) and solar cells. Study Group on semiconductor candidate substance zinc nitride is set to aim the object lists 583 species list by supercomputers to predict crystal structure stability and the like, which screened 21 kinds.

June 21, Tokyo Institute of Technology and Kyoto University research team has developed a representation does not use expensive rare elements of red light-emitting semiconductor. The picture shows the issue in the light of new red nitride in which researchers selected a red LED suitable for substance synthesis at 1200 degrees, about 50,000 air pressure conditions. The substance of the issue is expected at the red light, it is expected to become a red LED found materials.

Use low-cost nitride LED has been successful blue and green, but red has not received any practical application, the use of rare elements must exist and difficult waste materials.

Tokyo University Professor of Computational Materials Science Field history Kang said: "The substance only calcium, zinc and nitrogen reserves abundant element can be made in the future want to study more simple synthetic way, to promote the practical application."