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 journalArticlepeer-review

12 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)12560-12566
Number of pages7
JournalLangmuir
Volume31
Issue number45
DOIs
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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