Issue 12, 2021

Nanophotonic devices and circuits based on colloidal quantum dots

Abstract

Colloidal quantum dots (CQDs), semiconductor nanocrystals capped with surfactant ligands and dispersed in solution, have provided a powerful platform for the achievement of numerous classes of solution-processed photonic and optoelectronic devices over recent years. They exhibit a plethora of outstanding properties, such as cost-effective synthesis, wide size-tunable emission (or absorption), large-scale solution-processable fabrication, and impressive photostability. Based on these properties achieved by novel material and structure engineering, these CQD-based photonic and optoelectronic devices are appealing alternatives to costly semiconductor products. Furthermore, a combination of these devices enables the construction of CQD-based nanophotonic circuits, which are generally composed of various components for light generation, guiding, manipulation, and detection in a single chip. In this review, we firstly summarize optical properties of CQDs, and then CQD-based passive and active nanophotonic devices, and nanophotonic circuits are also introduced and discussed. Lastly, further developments and challenges of CQD-based nanophotonic devices and circuits are outlined.

Graphical abstract: Nanophotonic devices and circuits based on colloidal quantum dots

Article information

Article type
Review Article
Submitted
29 dec 2020
Accepted
18 mar 2021
First published
18 mar 2021

Mater. Chem. Front., 2021,5, 4502-4537

Nanophotonic devices and circuits based on colloidal quantum dots

J. Chen and K. Rong, Mater. Chem. Front., 2021, 5, 4502 DOI: 10.1039/D0QM01118E

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