[K2PbX][Ga7S12] (X = Cl, Br, I): The First Lead‐Containing Cationic Moieties with Ultrahigh Second‐Harmonic Generation and Band Gaps Exceeding the Criterion of 2.33 eV
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Science"
DOI: 10.1002/advs.202207630
Abstract: In contrast to anionic group theory of nonlinear optical (NLO) materials that second‐harmonic generation (SHG) responses mainly originate from anionic groups, structural regulation on the cationic groups of salt‐inclusion chalcogenides (SICs) is performed to make… read more here.
Keywords: ga7s12; second harmonic; band gaps; harmonic generation ... See more keywords
Mixing Chromophores: Donor–Acceptor Dyes with Low‐Lying LUMOs and Narrow Band Gaps by Connecting 4‐Alkoxythiazoles and Azaacenes
Sign Up to like & getrecommendations! Published in 2017 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201601521
Abstract: The synthesis and characterization of novel donor–acceptor (D–A) type functional dyes is presented. The materials studied are based on the 4-alkoxythiazole structure containing one of three arylamine donor units and one of three acceptor building… read more here.
Keywords: lying lumos; low lying; donor acceptor; band gaps ... See more keywords
Band gaps for flexural elastic wave propagation in periodic composite plate structures based on a non-classical Mindlin plate model incorporating microstructure and surface energy effects
Sign Up to like & getrecommendations! Published in 2019 at "Continuum Mechanics and Thermodynamics"
DOI: 10.1007/s00161-019-00771-5
Abstract: A new model for determining band gaps for flexural elastic wave propagation in periodic composite plate structures containing square and cruciform inclusions is developed using a non-classical Mindlin plate model incorporating the microstructure and surface… read more here.
Keywords: microstructure surface; model; band gaps; surface energy ... See more keywords
Conventional and star-shaped auxetic materials for the creation of band gaps
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DOI: 10.1007/s00419-019-01594-1
Abstract: A band gap region, or simply a band gap, is a range of frequencies where vibrations of certain frequency ranges are isolated. In the present paper, such ranges are sought through the study of different… read more here.
Keywords: shaped auxetic; star shaped; band; band gaps ... See more keywords
Photonic crystals and topological photonics
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DOI: 10.1007/s12200-020-1022-2
Abstract: The idea of photonic crystals and photonic band gap was first introduced by both Yablonovitch [1] and John in 1987 [2]. Photonic crystals are man-made periodic optical media in which the dispersion of light is… read more here.
Keywords: band gaps; topological photonics; material; photonic crystals ... See more keywords
Analysis of photonic band gaps in metamaterial-based one-dimensional ternary photonic crystals
Sign Up to like & getrecommendations! Published in 2018 at "Indian Journal of Physics"
DOI: 10.1007/s12648-018-1320-3
Abstract: In the present work, we propose a one-dimensional ternary photonic crystals composed of alternatively stacked dispersive metamaterial layers including double-negative (electric permittivity ε read more here.
Keywords: gap; ternary photonic; dimensional ternary; one dimensional ... See more keywords
Extending and lowering band gaps by multilayered locally resonant phononic crystals
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DOI: 10.1016/j.apacoust.2017.12.012
Abstract: Abstract Locally resonant phononic crystals (LRPCs) have band gaps with low frequencies and the size of the cell is much smaller than the wave lengths of the band gaps. This unique property makes them good… read more here.
Keywords: phononic crystals; locally resonant; extending lowering; band gaps ... See more keywords
Tuning the band gaps of ferroelectric Aurivillius compounds by transition metal substitution
Sign Up to like & getrecommendations! Published in 2020 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.12.062
Abstract: Abstract A wide bandgap is one of the major obstacles that hamper the photoelectric application of ferroelectrics. This work reported the tunable band gaps of ferroelectric Aurivillius Bi3.15Nd0.85Ti3O12 (BNdT) by B-site X (X = Ni, Co, Cr… read more here.
Keywords: band gap; band; band gaps; gaps ferroelectric ... See more keywords
Electronic band gaps corrections using total energy with DFT/LDA-½ quasi-particle approximation
Sign Up to like & getrecommendations! Published in 2019 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2019.05.048
Abstract: Abstract The established modus operandi on the application of the LDA-½ quasi-particle approximation methodology is to optimize the cutoff radius of the electrostatic self-energy function, in order to be applied inside the infinite crystal model.… read more here.
Keywords: cutoff radius; band; band gaps; energy ... See more keywords
Band gaps for elastic wave propagation in a periodic composite beam structure incorporating microstructure and surface energy effects
Sign Up to like & getrecommendations! Published in 2017 at "Composite Structures"
DOI: 10.1016/j.compstruct.2017.11.040
Abstract: Abstract A new model for determining band gaps for elastic wave propagation in a periodic composite beam structure is developed using a non-classical Bernoulli–Euler beam model that incorporates the microstructure, surface energy and rotational inertia… read more here.
Keywords: band gaps; model; microstructure surface; beam ... See more keywords
Elastic wave propagation in 3-D periodic composites: Band gaps incorporating microstructure effects
Sign Up to like & getrecommendations! Published in 2018 at "Composite Structures"
DOI: 10.1016/j.compstruct.2018.07.115
Abstract: Abstract A new model for determining band gaps for elastic wave propagation in three-dimensional (3-D) periodic two-phase composites is developed using a modified couple stress theory that accounts for microstructure effects. Three types of composites,… read more here.
Keywords: elastic wave; microstructure effects; wave propagation; band gaps ... See more keywords