Jump to main content
Jump to site search

Issue 7, 2016
Previous Article Next Article

Long-afterglow metal–organic frameworks: reversible guest-induced phosphorescence tunability

Author affiliations

Abstract

Luminescent metal–organic frameworks (MOFs) have received much attention due to their wide structural tunability and potential application in light-emitting diodes, biological imaging and chemical sensors. However, successful examples of long-persistent afterglow MOFs are still quite limited to date. In this work, we report that two types of Zn-terephthalate (TPA) MOFs (namely [Zn(TPA)(DMF)] (1-DMF) and MOF-5) could exhibit an obvious room-temperature afterglow emission with a time-resolved luminescence lifetime as high as 0.47 seconds. The phosphorescence-based afterglow was also highly sensitive to the temperature, and the reversible emission intensity could be recycled under high/low temperatures. Moreover, both 1-DMF and MOF-5 showed highly tunable afterglow phosphorescence colors (from cyan to yellow and from green to red, respectively) upon treatment with pyridine solution. The fluorescence/phosphorescence emission color of MOF-5 can be reversibly switched due to the addition and removal of a pyridine guest to and from the host nanochannel, as shown in both experimental and computational studies. Therefore, this work not only shows a facile method to develop MOF-based long-afterglow materials at room temperature, but also presents a strategy to tune their phosphorescence in a wide range based on host–guest interactions.

Graphical abstract: Long-afterglow metal–organic frameworks: reversible guest-induced phosphorescence tunability

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Feb 2016, accepted on 24 Mar 2016 and first published on 24 Mar 2016


Article type: Edge Article
DOI: 10.1039/C6SC00563B
Citation: Chem. Sci., 2016,7, 4519-4526
  • Open access: Creative Commons BY license
  •   Request permissions

    Long-afterglow metal–organic frameworks: reversible guest-induced phosphorescence tunability

    X. Yang and D. Yan, Chem. Sci., 2016, 7, 4519
    DOI: 10.1039/C6SC00563B

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements