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Nonlinear Optical Potassium Niobate Nanocrystals as Harmonic Markers: The Role of Precursors and Stoichiometry in Hydrothermal Synthesis

Abstract

Nanocrystals of alkaline niobates are currently discussed for various applications because of their diverse and remarkable properties. Although the growth of bulk niobate crystals is well established, little is known about respective nanocrystals and the optical properties of niobates below 100 nm. A systematic view on the hydrothermal synthesis of potassium niobate with respect to the precursor species reveals the sensitive dependence of the resulting crystalline phases and sizes on the educts modifications. With a variation of stoichiometry of the procedure again the product modification and crystallite size can be changed. By means of second harmonic generation nanocrystalline potassium niobate offers the possibility to be used as an optical marker in high resolution nonlinear microscopy. Redispersed particles show a significant second harmonic generation signal throughout the visible spectral range.

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Publication details

The article was received on 17 Jan 2018, accepted on 01 May 2018 and first published on 02 May 2018


Article type: Paper
DOI: 10.1039/C8NR00470F
Citation: Nanoscale, 2018, Accepted Manuscript
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    Nonlinear Optical Potassium Niobate Nanocrystals as Harmonic Markers: The Role of Precursors and Stoichiometry in Hydrothermal Synthesis

    Z. Wang, C. Kijatkin, A. Urban, M. Haase, M. Imlau and K. Kömpe, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR00470F

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