Deposition of Quantum Dots in a Capillary Tube

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

Research output: Contribution to journalArticle

11 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)12560-12566
Number of pages7
Issue number45
StatePublished - Oct 23 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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  • Cite this

    Kong, Y. L., Boulogne, F., Kim, H., Nunes, J., Feng, J., & Stone, H. A. (2015). Deposition of Quantum Dots in a Capillary Tube. Langmuir, 31(45), 12560-12566.