Energy bands of AgIn<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">S</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>in the chalcopyrite and orthorhombic structures

Shay, J. L.; Tell, B.; Schiavone, L. M.; Kasper, H. M.; Thiel, F. A.

doi:10.1103/physrevb.9.1719

Cited by 153 publications

(68 citation statements)

References 8 publications

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“…The following results are values of the d (2) tensor components scaled to λ = 2300 nm by using Miller's rule, i.e. assuming the same wavelength dispersion for the second-order nonlinearity as for the linear susceptibility,…”

Section: B Measurements Based On Femtosecond Shgmentioning

confidence: 99%

“…By using C v = C p and χ (2) 333 = n 4 3 r 33 from the previous subsection, the pyroelectric coefficient measured previously [55] as a function of temperature and its value extrapolated at 300 K, p σ = 6 × 10 −10 C· cm −2 K −1 , we observe that Soref's hypothesis is confirmed for the ternary semiconductor LIS, as it was already shown for the binary one CdS [54]. We note also that a rather good estimate of the pyroelectric effect may be deduced from electro-optic measurements and vice versa, but this requires at first an accurate determination of the piezoelectric contribution.…”

Section: Comparison Of the Electro-optic And Pyroelectric Coefficimentioning

confidence: 99%

“…It is hence important to know C p , K and dn/dT . In addition, the thermo-optic coefficients are needed to predict phase-matching performance in χ (2) interactions. Let us point out that no data has been published on the thermal properties of single domain crystalline LIS.…”

Section: Thermal and Thermo-optic Propertiesmentioning

confidence: 99%

“…) and the second-order electronic susceptibility χ (2) describing the linear (true) electrooptic effect:…”

Section: Comparison Of the Electro-optic And Pyroelectric Coefficimentioning

confidence: 99%

“…The majority of these compounds belong to the ternary chalcogenide semi-conductors of the A I B III C VI 2 family, where A=Cu, Ag; B=Al, Ga, In; C=S, Se, Te [1]. Except for AgInS 2 , which can exist in both the tetragonal and orthorhombic phases [2], these crystallize in the chalcopyrite (CuFeS 2 ) structure with I42d space group and tetragonal symmetry (class)42m but only few of them possess sufficient birefringence. Most of the commercially available nonlinear crystals (AgGaS 2 or AGS, AgGaSe 2 or AGSe, ZnGeP 2 or ZGP, GaSe, CdSe) or more confidential ones (HgGa 2 S 4 or HGS, Ag 3 AsS 3 or proustite, Tl 3 AsSe 3 or TAS) have their advantages and drawbacks [3].…”

Section: Introductionmentioning

confidence: 99%

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Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

et al. 2004

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Lithium thioindate (LiInS2) is a new nonlinear chalcogenide biaxial material transparent from 0.4 to 12 µm, that has been successfully grown in large sizes and good optical quality. We report on new physical properties that are relevant for laser and nonlinear optics applications. With respect to AgGaS(e)2 ternary chalcopyrite materials, LiInS2 displays a nearly-isotropic thermal expansion behavior, a 5-times larger thermal conductivity associated with high optical damage thresholds, and an extremely low intensity-dependent absorption allowing direct high-power downconversion from the near-IR to the deep mid-IR. Continuous-wave difference-frequency generation (5-11 µm) of Ti:sapphire laser sources is reported for the first time.

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Section: B Measurements Based On Femtosecond Shgmentioning

confidence: 99%

Section: Comparison Of the Electro-optic And Pyroelectric Coefficimentioning

confidence: 99%

Section: Thermal and Thermo-optic Propertiesmentioning

confidence: 99%

“…) and the second-order electronic susceptibility χ (2) describing the linear (true) electrooptic effect:…”

Section: Comparison Of the Electro-optic And Pyroelectric Coefficimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

et al. 2004

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Probing the Crystal Structure, Composition‐Dependent Absolute Energy Levels, and Electrocatalytic Properties of Silver Indium Sulfide Nanostructures

et al. 2016

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The absolute electronic energy levels in silver indium sulfide (AIS) nanocrystals (NCs) with varying compositions and crystallographic phases have been determined by using cyclic voltammetry. Different crystallographic phases, that is, metastable cubic, orthorhombic, monoclinic, and a mixture of cubic and orthorhombic AIS NCs, were studied. The band gap values estimated from the cyclic voltammetry measurements match well with the band gap values calculated from the diffuse reflectance spectra measurements. The AIS nanostructures were found to show good electrocatalytic activity towards the hydrogen evolution reaction (HER). Our results clearly establish that the electronic and electrocatalytic properties of AIS NCs are strongly sensitive to the composition and crystal structure of AIS NCs. Monoclinic AIS was found to be the most active HER electrocatalyst, with electrocatalytic activity that is almost comparable to the MoS2 -based nanostructures reported in the literature, whereas cubic AIS was observed to be the least active of the studied crystallographic phases and compositions. In view of the HER activity and electronic band structure parameters observed herein, we hypothesize that the Fermi energy level of AIS NCs is an important factor that decides the electrocatalytic efficiency of these nanocomposites. The work presented herein, in addition to being the first of its kind regarding the composition and phase-dependence of electrochemical aspects of AIS NCs, also presents a simple solvothermal method for the synthesis of different crystallographic phases with various Ag/In molar ratios.

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Synthesis by organic molten salt method and characterization of chalcopyrite AgInS₂ nanorods

Zhang

Huang

2010

Cryst. Res. Technol.

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In this paper, chalcopyrite AgInS 2 nanorods were synthesized for the first time by a one-step, ambient pressure, environment friendly organic molten salt (OMS) method at 200 °C. The as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. The XRD results reveal that the as-synthesized products at 120-160 °C under ambient pressure contain AgIn 5 S 8 which will decrease with the increase of growth temperature. A sample containing only the chalcopyrite AgInS 2 phase is successfully obtained at 200 °C. Furthermore, the elemental compositions are found to become increasingly stoichiometric with increasing temperature. UV-Vis and photoluminescence (PL) spectra are utilized to investigate the optical properties of AgInS 2 nanorods. By testing on UV-Vis spectra , it is concluded that the limiting wavelength of the AgInS 2 nanorods is 661 nm and the band gap is 1.88 eV. A broad red emission band peak centered at about 1.874 eV (662 nm) is clearly observed at room temperature, and the intensity of the emission increases with excitation wavelength. In addition, the photoluminescence quantum yield (PLQY) of the nanocrystals at the excitation wavelength of 250 nm was determined to be 13.2%. A possible growth mechanism of AgInS 2 nanorods was discussed.

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Energy bands of AgInS2in the chalcopyrite and orthorhombic structures

Cited by 153 publications

References 8 publications

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

Probing the Crystal Structure, Composition‐Dependent Absolute Energy Levels, and Electrocatalytic Properties of Silver Indium Sulfide Nanostructures

Synthesis by organic molten salt method and characterization of chalcopyrite AgInS₂ nanorods

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Energy bands of AgInS2in the chalcopyrite and orthorhombic structures

Cited by 153 publications

References 8 publications

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

Optical, vibrational, thermal, electrical, damage, and phase-matching properties of lithium thioindate

Probing the Crystal Structure, Composition‐Dependent Absolute Energy Levels, and Electrocatalytic Properties of Silver Indium Sulfide Nanostructures

Synthesis by organic molten salt method and characterization of chalcopyrite AgInS2 nanorods

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Product

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Synthesis by organic molten salt method and characterization of chalcopyrite AgInS₂ nanorods