ABSTRACT

Silicon (Si) technology overwhelmingly dominates microelectronics. However, Si is a very poor light emitting material because of its indirect bandgap. Furthermore, its bandgap of ~1.1 eV at room temperature would limit its use to the near infrared range. As a result, other light emitting materials, such as compound semiconductors, or organic molecules have been chosen for optoelectronic applications such as optical communication, display, and lighting.