PyI12: Pyroelectric single-element detectors and arrays based on modified TGS

Hofmann, G.; Neumann, Norbert; Budzier, Helmut

doi:10.1080/00150199208217975

Cited by 23 publications

(8 citation statements)

References 4 publications

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“…are combined with the ability of chemical modification using molecular engineering and intrinsic biocompatibility. 7,8 In addition, recently observed room-temperature ferroelectricity in glycine 9 opens up new perspectives for using this material in biocompatible nonvolatile memories, optical switches, and transistor gates, to name a few.…”

Section: ■ Introductionmentioning

confidence: 97%

Growth and Nonlinear Optical Properties of β-Glycine Crystals Grown on Pt Substrates

Seyedhosseini¹,

Ivanov²,

Bystrov

et al. 2014

Crystal Growth & Design

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Glycine is the simplest amino acid and one of the basic and important elements in biology, as it serves as a building block for proteins. The interest in this material has recently arisen from its useful functional properties, such as its high value of nonlinear optical susceptibility and ferroelectricity. Three polymorphic forms with different physical properties are possible in glycine, the most useful β-polymorph being much less stable than the other two. In this work, we could grow stable microcrystals of β-glycine using a (111)Pt/SiO 2 /Si substrate as a template. The effects of the solution concentration and Pt-assisted nucleation on the crystal growth and phase evolution were evaluated using X-ray diffraction analysis and Raman spectroscopy. A second harmonic generation (SHG) method confirmed that the 2-fold symmetry is preserved in as-grown crystals, thus reflecting the expected P2 1 symmetry of the β-phase. Spontaneous polarization direction is found to be parallel to the monoclinic [010] axis and directed along the crystal length. These data are confirmed by computational molecular modeling. Optical measurements revealed also relatively high values of the nonlinear optical susceptibility (50% greater than in the z-cut quartz). The potential use of stable β-glycine crystals in nonlinear optical applications is discussed.

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Section: ■ Introductionmentioning

confidence: 97%

Growth and Nonlinear Optical Properties of β-Glycine Crystals Grown on Pt Substrates

Seyedhosseini¹,

Ivanov²,

Bystrov

et al. 2014

Crystal Growth & Design

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“…The improved growth yield and pyroelectric properties were also observed in pure TGS crystals grown on poled seeds [17] and other growth arrangements [18]. In the recent past, many studies have been performed with different amino acid doping (besides L-alanine) [19][20][21][22][23][24][25][26][27][28][29][30], metallic ions [1,[5][6][7][8][9][10][11], double doping with both metallic and organic dopants [1,[31][32][33] including growth of these crystals in microgravity environment of space [34,35]. However, there are few studies reported to investigate the effects of rare-earth dopants on growth and physical properties of resulting crystals [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Growth and characterization of rare earths doped triglycine sulfate crystals

Batra

Guggilla

Cunningham

et al. 2006

Physica B: Condensed Matter

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“…TGS crystal shows a ferroelectric phase transition at the Curie point (49˚C). Below the T c, TGS possesses the polar point symmetry of group 2 of the monoclinic system, spontaneous polarization along the b-axis and above T c , it possesses the non polar point group 2/m of the monoclinic system [3,4]. Undoped TGS crystals have some disadvantages such as the ferroelectric domains possess high mobility at room temperature, easy depolarization by electrical and thermal means, microbial contamination with time during the growth and low curie point.…”

Section: Introductionmentioning

confidence: 99%

Structural and Optical Properties of Triglycine Sulfate Single Crystals Doped with Potassium Bromide

Khanum¹,

Podder²

2011

JCPT

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Triglycine sulfate crystal and potassium bromide doped triglycine sulfate crystals were grown from aqueous solution by slow evaporation method. Energy dispersive X-ray analysis identifies the elements present in the crystal. The Fourier Transform Infrared spectroscopy has been recorded in the range 400 to 4000 cm<sup>-1</sup> and the functional groups of the grown crystals have been identified. The structural studies on the grown crystals were carried out by X-ray diffraction analysis technique and found that the grown crystal crystallizes in monoclinic structure. The lattice cell parameters of pure Triglycine sulfate are a = 9.6010 Å, b = 12.5600 Å, c = 5.4500 Å. Ultraviolet-Visible spectra show that the grown crystals have wide optical transparency in the entire visible region

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PyI12: Pyroelectric single-element detectors and arrays based on modified TGS

Cited by 23 publications

References 4 publications

Growth and Nonlinear Optical Properties of β-Glycine Crystals Grown on Pt Substrates

Growth and Nonlinear Optical Properties of β-Glycine Crystals Grown on Pt Substrates

Growth and characterization of rare earths doped triglycine sulfate crystals

Structural and Optical Properties of Triglycine Sulfate Single Crystals Doped with Potassium Bromide

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