Abstract
Single-crystalline nanostructures of calcium copper titanate, an important giant dielectric quaternary oxide is disclosed for the first time through a convenient molten salt synthesis technique. The technique is not only blessed with high yield but also can readily generate a wide range of morphologies from nanoparticles, nanocubes to nanorods in reproducible way. Most importantly, the as-synthesized nanostructures, irrespective of their shapes, maintain single-crystalline character as it is evident from high-resolution transmission electron microscopic investigation. The present study will pave the way for the development of single-crystalline multi-component perovskite nanostructures which were seem to be extremely hard to realize to date. The possible mechanism on morphological evolution of the as-prepared nanostructures in molten salt is also discussed.
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Acknowledgements
The authors wish to thank the University Grants Commission, The Government of India for financial support under the scheme “University with potential for excellence (UPEII)”. We would also like to thank the Department of Science and Technology, the Govt. of India for financial support.
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Sen, A., Maiti, U.N., Maiti, S. et al. Single crystalline nanostructures of giant dielectric calcium copper titanate: a convenient route toward materialization of hard to realize multi-component perovskite nanostructures. J Mater Sci 48, 3967–3974 (2013). https://doi.org/10.1007/s10853-013-7205-0
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DOI: https://doi.org/10.1007/s10853-013-7205-0
Keywords
- Molten Salt
- Copper Acetate
- Calcium Acetate
- Oriented Attachment
- Calcium Titanate