Recently,LiuLiGong and HuangQing ,from Chinese academy of sciences and engineering research institute, Ningbo material technology "structure and function integration ceramics" research and development team,realize  preparing high quality nitride phosphor in low temperature atmospheric pressure, which passed the material fluorescence properties test in August.

Nitrides phosphor is LED (light emitting diode) indispensable important material system. According to Huangqing's introduction, the new technology changes microwave power into heat energy to realize the whole heating. Compared with the traditional synthetic method in high temperature (1700 ℃ ~ 2000 ℃) and high pressure (1 ~ 10 a tm) conditions, microwave synthesis can achieve the same results in atmospheric pressure and 1600℃. Low temperature synthesis increases phosphor optical performance,saving more than 80% energy in industrial

In addition,in the same reaction temperature,microwave method to get phosphor quantum efficiency improve 1.6 times than traditional pressure method. In the production rate of phosphor.general pressure furnace can produce about 100 grams one day,however microwave method can achieve dozens of kg category.New technology also can realize materials large area zero gradient evenly heating,warming faster, synthetic time short, and to get the powder of uniform particle.