Jump to main content
Jump to site search

Issue 14, 2019
Previous Article Next Article

Fabrication of amphiphilic quantum dots towards high-colour-quality light-emitting devices

Author affiliations

Abstract

To realize the potential of quantum dots (QDs) in various applications, good affinity between QDs and diverse media with different polarities is particularly important. Herein, we develop an interfacial synthesis method to achieve brightly fluorescent amphiphilic CdSe/ZnS QDs modified with beta-cyclodextrin (β-CD) to realize diversified functional applications. Thanks to the host–guest assembly between β-CD and the surface ligand of QDs under the moderate interfacial conditions, the beforehand prepared lipophilic QDs change into amphiphilic ones; the as-synthesized amphipathic QDs have good dispersibility in water and toluene, along with greatly enhanced photoluminescence (PL) quantum yields (QYs) of 80–82%. We then demonstrate the use of amphiphilic QDs as colour conversion materials to construct a liquid crystal display (LCD) backlight with a wide colour gamut up to 112%. The amphiphilic QDs could also be well incorporated into polymers via microfluidic spinning to fabricate brightly fluorescent fabrics useful for flexible optoelectronic devices. This work presents a facile functional platform that enables the realization of amphiphilic QDs for high-colour-quality light-emitting applications.

Graphical abstract: Fabrication of amphiphilic quantum dots towards high-colour-quality light-emitting devices

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Jan 2019, accepted on 04 Mar 2019 and first published on 06 Mar 2019


Article type: Paper
DOI: 10.1039/C9TC00113A
J. Mater. Chem. C, 2019,7, 4244-4249

  •   Request permissions

    Fabrication of amphiphilic quantum dots towards high-colour-quality light-emitting devices

    R. Cheng, F. Li, J. Zhang, X. She, Y. Zhang, K. Shao, Y. Lin, C. Wang and S. Chen, J. Mater. Chem. C, 2019, 7, 4244
    DOI: 10.1039/C9TC00113A

Search articles by author

Spotlight

Advertisements