title: 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.
authors: Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
authors: Geoffrey J
authors: GJ
authors: Supran
authors: Katherine W
authors: KW
authors: Song
authors: Gyu Weon
authors: GW
authors: Hwang
authors: Raoul E
authors: RE
authors: Correa
authors: Jennifer
authors: J
authors: Scherer
authors: Eric A
authors: EA
authors: Dauler
authors: Yasuhiro
authors: Y
authors: Shirasaki
authors: Moungi G
authors: MG
authors: Bawendi
authors: Vladimir
authors: V
authors: Bulović
keywords: cation-exchange; colloidal quantum-dots; core-shell; light-emitting devices; shortwave-infrared