Physics and materials issues behind the lifetime problem in semiconductor lasers and light-emitting diodes

摘要

Abstract: In this short review we describe phenomenologically what is known about laser and light emitting diodes (LEDs) degradation and review the physical understanding of it. We will then examine the issues that are relevant to the more novel vertical surface emitting lasers devices and to the new materials that are being used in the fabrication of LEDs and lasers.!20