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Using layer-by-layer assembly to fabricate NaLa(MoO4)2@CdTe core–shell microspheres with high fluorescence

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Abstract

The development of fluorescent materials with low energy consumption, low cost and desirable optical properties is needed for the perspective of practical application. Here, functional NaLa(MoO4)2@CdTe core–shell microspheres with high fluorescence were prepared by layer-by-layer self-assembly technique. Through the consecutive electrostatic adsorption of charged cetyltrimethyl ammonium bromide and CdTe quantum dots (QDs), the uniform and regular multilayer shell of CdTe QDs was synthesized. The NaLa(MoO4)2@CdTe microspheres exhibited improved photoluminescence intensity and stability of red emission, compared with that of the CdTe QDs powder, and the fluorescence enhancement mechanism were investigated. The CdTe QDs multilayer shell is expected to supersede the Eu3+ ion for producing a novel red phosphor.

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Acknowledgements

The authors acknowledge the financial support from Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions and Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), IRT1146.

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Authors and Affiliations

  1. State Key Laboratory of Materials-Orient Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 210009, China

    Hu Chen, Yunfei Liu, Yinong Lu, Hongming Wu & Hao Qian

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  1. Hu Chen
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  2. Yunfei Liu
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  3. Yinong Lu
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  4. Hongming Wu
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  5. Hao Qian
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Corresponding authors

Correspondence to Yunfei Liu or Yinong Lu.

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Chen, H., Liu, Y., Lu, Y. et al. Using layer-by-layer assembly to fabricate NaLa(MoO4)2@CdTe core–shell microspheres with high fluorescence. J Mater Sci 49, 4506–4512 (2014). https://doi.org/10.1007/s10853-014-8149-8

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  • DOI: https://doi.org/10.1007/s10853-014-8149-8

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