Sulforhodamine B intercalated layered double hydroxide thin film with polarized photoluminescence

The Journal of Physical Chemistry. B
Dongpeng YanXue Duan

Abstract

Sulforhodamine B (SRB) and dodecylbenzenesulfonate (DBS) with different molar ratios cointercalated into the interlayer region of Mg-Al-layered double hydroxide (SRB-DBS/LDH) were prepared. The structure and chemical composition of the composites were characterized by X-ray diffraction, elemental analysis, thermogravimetry, and differential thermal analysis (TG-DTA). Fluorescence spectra demonstrate that the sample with 4.76% SRB molar percentage, with respect to the total organic material, exhibits the optimal luminous intensity. The fluorescence lifetime of SRB in SRB-DBS/LDH is enhanced significantly compared with that of pristine SRB in solution (4.14 vs 2.05 ns). SRB-DBS/LDH thin films on the quartz substrates were constructed by the solvent evaporation method. Steady-state polarization photoemission spectra show that the luminescence anisotropy of SRB-DBS/LDH thin films (r=0.10) was enhanced remarkably compared with that of a powder sample (r=0+/-0.01) at ambient temperature, whereas the anisotropy of both film and powder samples was largely improved at low temperature (77 K). Furthermore, the SRB-DBS/LDH thin films exhibit a luminescence anisotropy decay effect in the range of their fluorescence lifetime. These results d...Continue Reading

References

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Citations

Jun 16, 2010·Chemical Communications : Chem Comm·Xiaoxiao GuoXue Duan
Oct 22, 2010·Physical Chemistry Chemical Physics : PCCP·Dongpeng YanXue Duan
May 7, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Yue-Ming KuoChia-Hung Lee
Oct 6, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Lin WangXue Duan
Apr 22, 2020·Journal of Fluorescence·Bo RuanFang-Chang Tsai
Jul 29, 2015·Chemistry : a European Journal·Ana L CostaJ Sérgio Seixas de Melo
Jun 21, 2011·Angewandte Chemie·Dongpeng YanXue Duan
Mar 11, 2021·Chemical Society Reviews·Rui GaoDongpeng Yan
Sep 19, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Xinrui WangXue Duan
Sep 24, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Víctor Oestreicher, Matías Jobbágy
Apr 8, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Ana L CostaJ Sérgio Seixas de Melo

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