Deposition of Quantum Dots in a Capillary Tube.

TitleDeposition of Quantum Dots in a Capillary Tube.
Publication TypeJournal Article
Year of Publication2015
AuthorsKong, YLin, Boulogne, F, Kim, H, Nunes, J, Feng, J, Stone, HA
JournalLangmuir
Volume31
Issue45
Pagination12560-6
Date Published2015 Nov 17
ISSN1520-5827
Abstract

<p>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. </p>

DOI10.1021/acs.langmuir.5b03443
Alternate JournalLangmuir
PubMed ID26496177