Dongda developed a technology for sputtering GaN-based LEDs on glass substrates

The research office of Professor Fujioka Yogi of the University of Tokyo announced on June 23, 2014 that it has developed a technique for forming a GaN-based LED by sputtering on a glass substrate. In addition to significantly reducing manufacturing costs compared to existing LEDs, it is also possible to implement large-area light-emitting elements such as organic ELs using inorganic LEDs.

Prof. Fujioka's laboratory transferred a graphene multilayer film on a glass substrate of about 2 inches (about 5 cm in diameter), and then formed AlN and n-type GaN on the graphene multilayer film by pulse sputtering. A quantum well or p-type GaN crystal composed of a multilayer structure of GaN and InGaN.

Fujioka said that the technology for making LEDs by sputtering has been developed long ago. "The details of these technologies have not been released, but the experience is accumulated." This technique can be said that a GaN crystal is formed by sputtering on a graphene sheet which is the thinnest graphite sheet, and it is confirmed that actual light can be emitted. LEDs that emit light in three primary colors of red (R), green (G), and blue (B) were produced.

At present, it is impossible to detect the luminous efficiency of white light emission and the external quantum efficiency in a single color state, and the internal quantum efficiency under extremely low temperature conditions is being evaluated. Professor Fujioka said, "The internal quantum efficiency is as low as a few percent compared to LEDs made on sapphire substrates." The future issue is how to increase the internal quantum efficiency to a level comparable to existing LEDs.

  Pluggable Terminal Block is made of two parts of pluggable connection. One part compresses the wire and then plugs it into the other part, which is welded to PCB. The mechanical principle of the connection bottom and the anti vibration design ensure the long-term airtight connection of the product and the use reliability of the finished product. The two ends of the socket can be equipped with matching ears, which can protect the connector to a large extent and prevent the poor arrangement of the connector. At the same time, this socket design can ensure that the socket can be inserted into the mother body correctly. The socket can also have assembly and locking positions. The assembly buckle can play a more stable role in fixing to the PCB, and the lock buckle can lock the mother body and the socket after the installation. Various socket designs can be matched with different insertion methods of the parent, such as: horizontal, vertical or inclined to printed circuit board, etc., and different ways can be selected according to the requirements of customers. Either metric wire gauge or standard wire gauge can be selected, which is the most popular terminal type in the market at present.

  Our Pluggable Terminal block suit for 0.08mm² to 10mm² wire connection with 2.5mm to 10.16mm pitch. Flexible wire insert direction. connect direction and plug-in direction according to customer requirement.

Pluggable Terminal Blocks

Pluggable Terminal,Pluggable Terminal Block,Pluggable Terminal Block Connector,Pcb Pluggable Terminal Block Connector

Suzhou WeBest Electronics Technology Co.Ltd ,