Influence of TEM specimen preparation on chemical composition of Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystals

Šrot, Vesna; Gec, M.; Aken, Peter A. van; Jeon, Jae Heung; Čeh, Miran

doi:10.1016/j.micron.2014.03.001

Cited by 9 publications

(8 citation statements)

References 11 publications

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“…15,16 Therefore, there is a growing need for the characterization of PMN-PT samples by TEM. However, it has been reported that the domain structure 17 and the composition 18 of these samples are quite sensitive to the preparation conditions.…”

Section: Introductionmentioning

confidence: 99%

Lattice reorientation in tetragonal PMN-PT thin film induced by focused ion beam preparation for transmission electron microscopy

Denneulin

Maeng

Eom

et al. 2017

Journal of Applied Physics

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Focused ion beam sample preparation for transmission electron microscopy (TEM) can induce relaxation mechanisms in epitaxial thin films. Here, we describe a relaxation mechanism that can occur in materials having a tetragonal structure. We investigated the lattice structure of a 600 nm thick 0.4[Pb(Mg1/3Nb2/3)O3]−0.6[PbTiO3] layer grown by epitaxy on (110) GdScO3 substrate using geometrical phase analysis applied to high resolution TEM images. The lattice mismatch at the interface is expected to favor the formation of c-domains. However, it was measured that the out-of-plane lattice parameter can decrease abruptly along the growth direction and the transition depends on the thickness of the TEM lamella. Different observations indicate that the crystal flipped by 90° following the preparation of the sample, so that the c-axis is oriented in the thinning direction. Such a mechanism can easily lead to misinterpretations and might happen in other materials with a similar structure.

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Section: Introductionmentioning

confidence: 99%

Lattice reorientation in tetragonal PMN-PT thin film induced by focused ion beam preparation for transmission electron microscopy

Denneulin

Maeng

Eom

et al. 2017

Journal of Applied Physics

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“…Transmission electron microscopy (TEM), which offers a wide variety of imaging and analytical techniques, plays a signifi cant role in the investigation of materials and is a very powerful characterization instrument (Srot et al, 2014). Because of these useful functions of TEM, TEM analysis has been extensively used in various fields of materials science and engineering.…”

Section: Introductionmentioning

confidence: 99%

Transmission Electron Microscopy Specimen Preparation of Delicate Materials Using Tripod Polisher

Cha

Kang

Shin

et al. 2016

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Transmission electron microscopy (TEM) is a powerful tool for analyzing a broad range of materials and provides localized information about the microstructure. However, the analysis results are strongly influenced by the quality of the thin foil specimen. Sample preparation for TEM analysis requires considerable skill, especially when the area of interest is small or the material of interest is diffi cult to thin because of its high hardness and its mechanical instability when thinned. This article selectively reviews recent advances in TEM sample preparation techniques using a tripod polisher. In particular, it introduces two typical types (fl at type and wedge type) of TEM sample preparation and the benefi ts and drawbacks of each method; finally, a method of making better samples for TEM analysis is suggested.

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“…Popularly, imidazole derivatives are reported physiologically and pharmacologically as applications for the treatment of several diseases. [11] Nonetheless, triarylimidazole derivatives have many biological activities such as herbicidal, fungicidal, and anti-inflammatory activities. Besides, they are also used in photography as photosensitive compounds.…”

Section: Introductionmentioning

confidence: 99%

An efficient and one-pot synthesis of 2,4,5-trisubstituted imidazole compounds catalyzed by copper nanoparticles

Gandhare

Chaudhary

Meshram³

et al. 2015

Journal of the Chinese Advanced Materials Society

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Copper nanoparticles (Cu NPs) were found to be an extremely efficient and effective catalyst for synthesis of 2,4,5-trisubstituted imidazole via three-component reactions of benzil, aldehydes, and ammonium acetate at room temperature. The products obtained were followed by thin-layer chromatography. After completion of the reaction, the reaction mixture was diluted with water (20 mL). The solid imidazole product was washed with water and recrystallized from ethanol to remove nanocopper to afford the pure imidazole compounds. The method provides several advantages such as simple operation, short reaction time, clean reaction profile, lower catalyst loading and high yield. The used catalyst in the reaction could be recovered conveniently and reused for several times. The high yields of reactions are attributed to the effect of Cu NPs due to high surface-to-volume ratio. Due to simple workup procedures, very short times and excellent product yields make this method an interesting alternative to other methodologies.

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Influence of TEM specimen preparation on chemical composition of Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystals

Cited by 9 publications

References 11 publications

Lattice reorientation in tetragonal PMN-PT thin film induced by focused ion beam preparation for transmission electron microscopy

Lattice reorientation in tetragonal PMN-PT thin film induced by focused ion beam preparation for transmission electron microscopy

Transmission Electron Microscopy Specimen Preparation of Delicate Materials Using Tripod Polisher

An efficient and one-pot synthesis of 2,4,5-trisubstituted imidazole compounds catalyzed by copper nanoparticles

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