According to a report from Japan’s Kyodo News Agency on June 22, a study group of Tokyo University of Technology and Kyoto University announced on the 21st that red light-emitting semiconductors that do not use expensive and rare elements have been developed. It is reported that in the future, it is expected to use nitrides made of abundant nitrogen on the earth and apply them to red light-emitting diodes (LEDs) and solar cells at a low cost. The research team set zinc nitrides as target targets for semiconductor candidate materials. A list of 583 types was listed, and 21 models were screened out by supercomputer prediction of crystal structure and stability.
On June 21st, a research team from Tokyo Institute of Technology and Kyoto University stated that they have developed red light-emitting semiconductors that do not use expensive rare elements. The picture shows a new nitride that emits red light in the light
The researchers selected a suitable material for the red LED, synthesized at 1200 degrees and approximately 50,000 pressure. The material emits the expected red light under illumination and is expected to become a red LED material.
The use of low-nitride LEDs has succeeded in achieving blue and green colors, but red has never been practically used, and there is a problem that rare elements and hard-to-discard raw materials must be used.
Daikang Shikang, a professor of computational materials science at Tokyo Institute of Technology, said: "The substance can be made only from elements rich in calcium, zinc, and nitrogen. In the future, we want to study more simple synthesis methods and promote practical applications."
ZHEJIANG HESHUO TECHNOLOGY CO.,LTD , https://www.hosuocn.com