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Type II hybrid structures of TiO2 nanorods conjugated with CdS quantum dots: assembly and optical properties

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Abstract

We developed a novel method to assemble TiO2 nanorods conjugated with CdS quantum dots by L-cysteine molecular linker for type II semiconducting hybrid structure. The XRD patterns indicate that the CdS quantum dots perform the cubic phase structure, and TEM images show that CdS quantum dots are well dispersed on the surfaces of anatase TiO2 nanorods with little agglomeration. The UV-vis absorption spectra reveal the bandgap alignment in type II configuration between CdS QDs and TiO2 nanorods.

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Acknowledgements

This work was financially supported by the 973 Project of China (Grant no. 2012CB934302).

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Authors and Affiliations

  1. Institute of Materials for Mobile Energy, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China

    Liman Sai & Xiang Yang Kong

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  1. Liman Sai
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  2. Xiang Yang Kong
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Correspondence to Xiang Yang Kong.

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Sai, L., Kong, X.Y. Type II hybrid structures of TiO2 nanorods conjugated with CdS quantum dots: assembly and optical properties. Appl. Phys. A 114, 605–609 (2014). https://doi.org/10.1007/s00339-013-7631-5

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  • DOI: https://doi.org/10.1007/s00339-013-7631-5

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