Nonlinear optical potassium niobate nanocrystals as harmonic markers: the role of precursors and stoichiometry in hydrothermal synthesisElectronic supplementary information (ESI) available: Rietveld refinements of the XRDs of the Nb2O5 educts, section of the XRDs of orthorhombic, tetragonal and monoclinic KNbO3 for distinction of the phases. DLS measurements, SEM and TEM images of five samples. See DOI: 10.1039/C8NR00470F

Nonlinear optical potassium niobate nanocrystals as harmonic markers: the role of precursors and... Nanocrystals of alkaline niobates are currently being 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 of 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 educt modifications. With a variation of stoichiometry of the procedure, the product modification and crystallite size can be changed. By means of second harmonic generation, nanocrystalline potassium niobate offers the possibility for use as an optical marker in high resolution nonlinear microscopy. Redispersed particles show a significant second harmonic generation signal throughout the visible spectral range. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nanoscale Royal Society of Chemistry

Nonlinear optical potassium niobate nanocrystals as harmonic markers: the role of precursors and stoichiometry in hydrothermal synthesisElectronic supplementary information (ESI) available: Rietveld refinements of the XRDs of the Nb2O5 educts, section of the XRDs of orthorhombic, tetragonal and monoclinic KNbO3 for distinction of the phases. DLS measurements, SEM and TEM images of five samples. See DOI: 10.1039/C8NR00470F

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
2040-3364
D.O.I.
10.1039/c8nr00470f
Publisher site
See Article on Publisher Site

Abstract

Nanocrystals of alkaline niobates are currently being 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 of 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 educt modifications. With a variation of stoichiometry of the procedure, the product modification and crystallite size can be changed. By means of second harmonic generation, nanocrystalline potassium niobate offers the possibility for use as an optical marker in high resolution nonlinear microscopy. Redispersed particles show a significant second harmonic generation signal throughout the visible spectral range.

Journal

NanoscaleRoyal Society of Chemistry

Published: May 30, 2018

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