Jump to main content
Jump to site search

Issue 12, 2018
Previous Article Next Article

Developed one-pot synthesis of dual-color CdSe quantum dots for white light-emitting diode application

Author affiliations

Abstract

Quantum dots (QDs) have attracted tremendous attention due to their outstanding optical properties, which show great potential for next generation lighting and displays. In particular, dual-color QDs (green- and red-emitting) offer significant advantages over the conventional phosphors used in white light-emitting diode (WLED) applications, which are replacing traditional fluorescent lamps due to their improved energy efficiency. However, a facile synthesis of well-controlled dual-color QDs is still one of the major constraints on a wider application of QD-WLEDs. Here, we report a developed one-pot synthesis method to produce dual-color QDs for WLED application. The size and fraction of red and green QDs can be controlled precisely during the synthetic process using HDA and HDA/TOPO as sophisticated capping reagents, respectively, thus manifesting decent optical properties and remarkably enhanced stability. One of our samples, GR0.75 QDs, is demonstrated to produce pure white color in a fabricated WLED device up to 18 hours. Based on advanced characterization, our findings reveal the critical role of the specific capping reagent in the synthesis and structure control of dual-color QDs, while the results regarding the enhanced stability may broaden the avenues for future QD-WLED applications.

Graphical abstract: Developed one-pot synthesis of dual-color CdSe quantum dots for white light-emitting diode application

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Jan 2018, accepted on 20 Feb 2018 and first published on 21 Feb 2018


Article type: Paper
DOI: 10.1039/C8TC00348C
Citation: J. Mater. Chem. C, 2018,6, 3089-3096
  •   Request permissions

    Developed one-pot synthesis of dual-color CdSe quantum dots for white light-emitting diode application

    S. Dai, C. Siao, S. Chung, K. Wang and X. Pan, J. Mater. Chem. C, 2018, 6, 3089
    DOI: 10.1039/C8TC00348C

Search articles by author

Spotlight

Advertisements