Another drawback of producing red LEDs on ScAlMgO 4 is the high cost of the substrate. Team spokesman Kazuhiro Ohkawa told ...

1 shows a white-light LED in action). It is possible to generate ... of material with a smaller bandgap (InGaN/GaN), also called quantum wells. The sandwiching of a smaller-bandgap material ...

It generated and led to the propagation of a large number ... green semiconductor LEDs and laser diodes have shifted to using InGaN active materials. Significant and rapid progress has been ...