Journal
CRYSTENGCOMM
Volume 16, Issue 16, Pages 3395-3402Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ce42479k
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Funding
- National Natural Science Foundation of China [20971100, 91122003]
- Program for New Century Excellent Talents in University [NCET 2008-08-0398]
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A novel type of organic-inorganic zeolite-based hybrid material with excellent luminescence properties was synthesized. Firstly, we synthesized CdS QD loaded zeolite crystals as a hybrid matrix through ethanol solution reaction of sulfide ions and cadmium exchanged zeolite crystals. After that, we functionalized the CdS QD loaded zeolites with three different mercaptan acids: thiosalicylic acid (rho-MBA), 4-mercaptobenzoic acid (rho-MBA), and mercaptoacetic acid (MAA), and then the mercaptan acid modified CdSQD loaded zeolite and 1,10-phenanthroline were applied to coordinate with rare earth ions (Eu3+, Tb3+). Accordingly, the final hybrid materialswere formed by a mild coordination reaction. Fluorescence spectrawere used to investigate the photophysical properties of hybridmaterials, which indicate that the emission spectra of obtained hybrid materials vary due to the different degrees of matching between the triplet energy level of all three mercaptan acids and the excited energy level of rare earth ions (Eu3+,Tb3+). Further, findings also reveal that the photoluminescence color can be tuned from white or pink to red by changing the coordinated mercaptan acid. Among the obtained materials, the europium, mercaptoacetic acid (MAA) and 1,10-phenanthroline ternary complex functionalized CdS-ZY showed remarkable luminescence quantum yields and relatively long D-5(0) lifetimes at room temperature.
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