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arXiv · 1511.05928

Deposition of quantum dots in a capillary tube

Yong Lin Kong·François Boulogne·Hyoungsoo Kim·Janine Nunes·Jie Feng·Howard A. Stone
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Abstract

The ability to assemble nanomaterials, such as quantum dots, enables the creation of functional devices that present unique optical and electronic properties. For instance, light-emitting diodes with exceptional color purity can be printed via the evaporative-driven assembly of quantum dots. Nevertheless, current studies of the colloidal deposition of quantum dots have been limited to the surfaces of a planar substrate. Here, we investigate the evaporation-driven assembly of quantum dots inside a confined cylindrical geometry. Specifically, we observe distinct deposition patterns, such as banding structures along the length of a capillary tube. Such coating behavior can be influenced by the evaporation speed as well as the concentration of quantum dots. Understanding the factors governing the coating process can provide a means to control the assembly of quantum dots inside a capillary tube, ultimately enabling the creation of novel photonic devices.

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Yong Lin Kong, François Boulogne, Hyoungsoo Kim, Janine Nunes, Jie Feng, Howard A. Stone. 2015-11-18. Deposition of quantum dots in a capillary tube. https://doi.org/10.1021/acs.langmuir.5b03443

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