Published April 2011 | Version v1
Journal article Metadata-only

Synthesis and characterization of Fe-doped LiNbO3 nanocrystals from a triple-alkoxide method

Creators

  • 1. Institute of Physics, University of Bonn, Wegelerstrasse 8, 53115 Bonn (Germany)
  • 2. Institute of Inorganic Materials Resarch, University of Bonn, Roemerstrasse 164, 53117 Bonn (Germany)

Description

Nanocrystals of Fe/LiNbO3 were synthesized from Li(OC2H5), Nb(OC2H5)5, and Fe(OC2H5)3 using a triple alkoxide sol-gel method with Fe-dopings of 0.5 and 1 mol%, respectively. X-ray diffraction proves the samples to be phase-pure and crystalline. The size of the crystals as determined by Scherrer equation and transmission electron microscopy is below 50 nm. Iron is distributed homogeneously within the crystals as shown with energy-dispersive X-ray spectroscopy. Ferroelectricity is verified by piezoresponse force microscopy. Vacuum annealing enables to control the Fe2+/Fe3+-concentration ratio from 0.1 to 0.9 with a reduction onset temperature of 200 C. (Copyright copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssa.201026546

Additional details

Identifiers

DOI
10.1002/pssa.201026546;

Publishing Information

Journal Title
Physica Status Solidi. A, Applications and Materials Science
Journal Volume
208
Journal Issue
4
Journal Page Range
p. 857-862
ISSN
1862-6300

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
42057475
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANNEALING; ATOMIC FORCE MICROSCOPY; CHARGE STATES; CONCENTRATION RATIO; CRYSTALS; DOPED MATERIALS; ELECTRON DIFFRACTION; FERROELECTRIC MATERIALS; IRON ADDITIONS; LITHIUM COMPOUNDS; NANOSTRUCTURES; NIOBATES; PARTICLE SIZE; PHOTOVOLTAIC EFFECT; PIEZOELECTRICITY; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY
Descriptors DEC
ALKALI METAL COMPOUNDS; ALLOYS; COHERENT SCATTERING; DIELECTRIC MATERIALS; DIFFRACTION; DIMENSIONLESS NUMBERS; ELECTRICITY; ELECTRON MICROSCOPY; HEAT TREATMENTS; IRON ALLOYS; MATERIALS; MICROSCOPY; NIOBIUM COMPOUNDS; OXYGEN COMPOUNDS; PHOTOELECTRIC EFFECT; REFRACTORY METAL COMPOUNDS; SCATTERING; SIZE; SPECTROSCOPY; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
With 8 figs., 1 tab., 22 refs.