Caption: Newly developed OLED material light-emitting structure
The research team of Professor Ikeda and others from Osaka Prefecture University in Japan has successfully developed high-efficiency OLED materials. The stage of the basic principle is still being confirmed; but in the future, its luminous efficiency may be up to four times that of current OLED materials. It is understood that its structure is also simple and can be synthesized at low cost. Practical work will be carried out for applications such as display and lighting.
The newly developed luminescent material is a methylene cyclo propane inducer containing a benzene ring. Once the radiation is irradiated, the electrons of the inducer are separated, and the annular structure is opened and illuminates. If the electrons are combined again, the original structure of the ring is restored, so that the durability is good and the long service life can be obtained.
Prior to this, the research team has been developing OLED materials that emit light in the same structure, but it is necessary to irradiate special gamma rays. This time, by freezing the material to remove air, etc., the X-ray of a general X-ray machine is used, which succeeds in producing green light.
Although new OLED materials have been confirmed to emit light by using X-rays, direct irradiation of radiation is not suitable for practical use. In the future, we will improve the production of improved materials, etc., and hope to achieve light by applying a voltage.
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