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Literature DB >> 25639896

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

Geoffrey J Supran¹, Katherine W Song, Gyu Weon Hwang, Raoul E Correa, Jennifer Scherer, Eric A Dauler, Yasuhiro Shirasaki, Moungi G Bawendi, Vladimir Bulović.

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.

Entities: Chemical Gene

Keywords: cation-exchange; colloidal quantum-dots; core-shell; light-emitting devices; shortwave-infrared

Year: 2015 PMID： 25639896 DOI： 10.1002/adma.201404636

Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849

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Cited

14 in total

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Journal: Adv Mater Date: 2015-07-01 Impact factor: 30.849

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6. Electroluminescence Generation in PbS Quantum Dot Light-Emitting Field-Effect Transistors with Solid-State Gating.

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7. Next-generation in vivo optical imaging with short-wave infrared quantum dots.

Authors: Oliver T Bruns; Thomas S Bischof; Daniel K Harris; Daniel Franke; Yanxiang Shi; Lars Riedemann; Alexander Bartelt; Frank B Jaworski; Jessica A Carr; Christopher J Rowlands; Mark W B Wilson; Ou Chen; He Wei; Gyu Weon Hwang; Daniel M Montana; Igor Coropceanu; Odin B Achorn; Jonas Kloepper; Joerg Heeren; Peter T C So; Dai Fukumura; Klavs F Jensen; Rakesh K Jain; Moungi G Bawendi
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