Direct and Indirect Bandgap Semiconductors

Explore the fundamental concepts of direct and indirect bandgap semiconductors in this 27-minute lecture from NPTEL-NOC IITM. Gain a comprehensive understanding of the differences between these two types of semiconductors, their energy band structures, and their implications for electronic and optoelectronic applications. Delve into the physics behind electron transitions, photon absorption, and emission processes in both direct and indirect bandgap materials. Learn how these properties influence the performance of various semiconductor devices, such as light-emitting diodes (LEDs), solar cells, and lasers. Enhance your knowledge of solid-state physics and semiconductor technology through this informative and concise presentation.

1.8 Direct and Indirect bandgap semiconductors