Japan to develop a bactericidal ultraviolet light emitting diode

Xinhuanet.com Tokyo May 16 Xinhua (reporter Lan Jianzhong) the day before the Japanese researchers developed a diamond can emit ultraviolet light emitting diode can be used as a germicidal lamp. Compared with the traditional germicidal lamp using mercury, the safety of this kind of light-emitting diode is much higher.

Japan Industrial Technology Research Institute recently announced that the diamond light emitting diode is used in the three layer structure, and the two outer layer contains impure man-made diamond impurities, sandwiched between a layer of pure artificial diamond. The structure of the diamond light-emitting diode can emit ultraviolet light at 235 nm.

In order to verify the effect of sterilization of new diamond light emitting diode, the researchers will be placed in Escherichia coli distribution environment. The results showed that the area covered with E.coli as long as the ultraviolet light of the diamond LED light, where the E.coli will all die.

Traditional Japanese germicidal lamps containing mercury and mercury, once the leak will pollute the environment. The diamond light emitting diode capable of emitting ultraviolet ray can not only replace the mercury lamp, but also can be used as the light source of visible light after being combined with the fluorescent substance.