High-performance shortwave-infrared light-emitting devices using core-shell (PbS-CdS) colloidal quantum dots.

Abstract

Core-shell PbS-CdS quantum dots enhance the peak external quantum efficiency of shortwave-infrared light-emitting devices by up to 50-100-fold (compared with core-only PbS devices). This is more than double the efficiency of previous quantum-dot light-emitting devices operating at wavelengths beyond 1 μm, and results from the passivation of the PbS cores by the CdS shells against in situ photoluminescence quenching.

DOI: 10.1002/adma.201404636

Cite this paper

@article{Supran2015HighperformanceSL, title={High-performance shortwave-infrared light-emitting devices using core-shell (PbS-CdS) colloidal quantum dots.}, author={Geoffrey J Supran and Katherine W Song and Gyu Weon Hwang and Raoul E Correa and Jennifer Scherer and Eric A Dauler and Yasuhiro Shirasaki and Moungi G Bawendi and Vladimir Bulovi{\'c}}, journal={Advanced materials}, year={2015}, volume={27 8}, pages={1437-42} }