Progress in Non-Cd Quantum Dot Development for Lighting Applications

Publisher Website
Google Scholar
Abstract
During the past few years there has been a significant progress in adapting the properties of non-Cd quantum dots (QDs) for lighting applications. It includes synthesis of novel materials, improvement of quantum efficiency and thermal stability, and most importantly, manufacturability on a scale large enough to meet the needs of the lighting industry. In this paper, we review the characteristics of three most mature non-Cd QD material systems, InP, CuInS2 and doped ZnS/ZnSe, from the perspective of lighting applications. Of these three systems, the InP-based QDs with core/shell structure are now available with quantum efficiency (QE) comparable to the best performing CdSe QDs, and in quantities large enough to meet the lighting needs. The CuInS2 QDs have also emerged as another non-toxic alternative to CdSe QDs but they need significant development to be comparable to InP and CdSe QDs.