Abstract
In this work, we report the fabrication of uniform PbS nanorice via a simple aqueous solution route using cetyl trimethyl ammonium bromide (CTAB) as a surfactant at low temperature (50 °C) for 2 h. The morphology, structure and optical properties of the products were characterized by means of XRD, FESEM, TEM and UV–Vis-NIR absorption spectroscopy. The as-prepared PbS nanorice have an equatorial diameter of 45–55 nm and a length of 90–150 nm. UV–Vis-NIR absorption spectrum indicated that the sample exhibits a dramatic blue-shift. The roles of CTAB and reaction temperature in the forming of PbS nanorice were discussed. Moreover, a tentative explanation for the growth mechanism of PbS nanorice has been made.
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Acknowledgements
This work was supported by the Fundamental Research Funds for the Central Universities (Project No. XDJK2016E001, for Innovation and Entrepreneurship Students), the Fundamental Research Funds for the Central Universities (Project No. XDJK2016C003), the Foundation of Chongqing Municipal Education Commission (KJ1711292), and the Ninth Undergraduate Science and Technology Innovation (Project 20162303008).
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Li, Y., Wu, H., Wu, Y. et al. Surfactant-assisted fabrication of PbS nanorice at low temperature in aqueous solution. Appl. Phys. A 123, 491 (2017). https://doi.org/10.1007/s00339-017-1106-z
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DOI: https://doi.org/10.1007/s00339-017-1106-z