Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 35, 2018
Previous Article Next Article

Phototunable full-color emission of dynamic luminescent materials

Author affiliations


A dynamic luminescent material that can change its color upon exposure to different photo-stimuli is significantly important and always desirable in color-on-demand applications such as anticounterfeiting and encryption. Herein, a facile approach for the fabrication of full-color dynamic luminescent materials based on trichromacy and dynamical afterglow was reported. Trichromic (green, blue, and red) luminescent materials (SrAl2O4:Eu2+,Dy3+, CaAl2O4:Eu2+,Nd3+ and Ca0.25SrS0.75:Eu2+) were synthesized by a high temperature solid state method. After simply blending them together, a dynamic full range of afterglow was observed after ultraviolet-visible (UV-vis) lamp irradiation. The afterglow intensity of mixtures revealed the existence of an interaction impact and energy transfer between components. The emissive colors were tunable in the full-color region simply by adjusting the blending ratio or excitation wavelengths. Moreover, the mixtures revealed the photo-stimuli responsive properties from different excitation sources. Ultimately, a luminescent three-dimensional (3D) code that could be read out by using a smartphone was prepared through this blended trichromic material. As a result, the pattern could only be read out after UV-vis lamp irradiation and could be converted to other information. These results indicate a facile, simple, and effective method for information encryption, conversion, and dynamic anticounterfeiting.

Graphical abstract: Phototunable full-color emission of dynamic luminescent materials

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Jun 2018, accepted on 10 Aug 2018 and first published on 11 Aug 2018

Article type: Paper
DOI: 10.1039/C8TC02955E
Citation: J. Mater. Chem. C, 2018,6, 9552-9560

  •   Request permissions

    Phototunable full-color emission of dynamic luminescent materials

    C. Shi, Y. Zhu, G. Zhu, X. Shen and M. Ge, J. Mater. Chem. C, 2018, 6, 9552
    DOI: 10.1039/C8TC02955E

Search articles by author