Changchun Yinghua achieved results to overcome OLED lighting technology problems
August 28 03:04:02, 2021
The Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences has achieved a series of research results in the research of fluorescent/phosphorescent hybrid white OLEDs, which has overcome the technical problems of OLED lighting. The related results were published in the international journal Advanced Materials. At present, OLED lighting has attracted great attention from academic and industrial circles. Since the stability of blue phosphorescent materials has not been solved, fluorescent/phosphorescent hybrid luminescence is considered to be the best way to achieve OLED illumination applications. Hybrid white OLEDs have become a hot spot in the field of organic luminescence research. In 2006, the United States proposed the idea of ​​adding an intermediate layer between the fluorescent and phosphorescent layers. Although the luminous efficiency was improved, the device structure was complicated and the spectral stability was poor. Under the support of the National Fund Committee, the Ministry of Science and Technology, the Chinese Academy of Sciences and our province, Ma Dongge, a researcher at the Changchun Institute of Chemical Industry, etc., mixed the blue fluorescent material with a higher triplet level into the bipolar blended host material. A high-performance hybrid white OLED is prepared without adding an intermediate layer between the fluorescent and phosphorescent emitting layers. The hybrid OLED structure without intermediate layer is relatively simple, not only has high luminous efficiency, but also has a very stable spectrum in lighting applications. Has a very good practical value.
Steel coupling is a piece of short pipe that is used to connect one pipe with another pipe, scope of application is also more widely, like agriculture, industry, construction and so on. There are socket welding couplings and threaded couplings, they are all high pressure forged fittings. Pressure shall be CLASS3000, CLASS6000, CLASS900. The standard of these products are in compliance with ASME B16.11.
Socket welding coupling
Pipes are put into socket welding hole and welded. Because of this connection, installation cost is reduced.
Threaded coupling, the type of thread is NPT.
For NPT coupling, the length of thread will be mentioned under the standard ASME B16.11.
