Quasicrystals: A New Class of Structurally Complex Intermetallics

Mukhopadhyay, N. K.; Yadav, Thakur Prasad

doi:10.1007/s41745-022-00293-1

Cited by 17 publications

(2 citation statements)

References 208 publications

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“…9 Icosahedral phase (i-phase) quasicrystals are characterized by long-range quasiperiodic organization and perfect icosahedral point group symmetry. 10 The i-phase's short-range icosahedral arrangement is similar to that of metallic glasses. Quasicrystals are known to develop in more than a hundred different alloy systems, 11 however, the two biggest classes of i-phase quasicrystals involve Al-and Ti-based transition metal alloys.…”

Section: Introductionmentioning

confidence: 94%

“…Since Shechtman et al’s 1984 discovery of quasicrystals, they have been utilized for a variety of purposes, including photonic crystals, , and to enhance coherent backscattering. , In our previous work, we demonstrated the ability of 2D-QCs obtained from non-noble nanomaterials to act as plasmonically active scatterers in a dye-based gain medium to generate random lasing . Icosahedral phase ( i -phase) quasicrystals are characterized by long-range quasiperiodic organization and perfect icosahedral point group symmetry . The i -phase’s short-range icosahedral arrangement is similar to that of metallic glasses.…”

Section: Introductionmentioning

confidence: 99%

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Plasmonically Active Atomically Thin Titanium-Based Quasicrystals for Dopamine Sensing

Mandal,

Santos,

Chakraborty

et al. 2024

ACS Appl. Nano Mater.

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Non-noble nanomaterial-based quasicrystals (QC) are attractive structures due to their potential surface plasmon resonance (SPR) properties and ability to be easily exfoliated into two-dimensional (2D) sheets. Interaction with and sensing of organic molecules are applications where such 2D materials are a viable option due to their large surface area to volume ratio, providing abundant active sites for molecular interactions. In this work, a titanium-based multicomponent alloy (Ti 45 Zr 38 Ni 17 ) was exfoliated into a 2D quasicrystal (2D-Ti QC) from its bulk form via liquidphase exfoliation. Structural and optical experimental techniques were used to characterize the 2D-Ti QC. Its plasmonic nature was verified and demonstrated via the absorbance spectrum, light localization images, and far-field diffraction patterns. Dopamine sensing was demonstrated using the absorbance spectra of optically active 2D-Ti QC. The linear range of detection was obtained as ∼13−91 nM (200−1400 ppb). Molecular dynamics (MD) simulations of Ti QC were conducted to investigate its structural stability. The interaction between 2D-Ti QC and dopamine was investigated by using DFT simulations. In this way, the potential of 2D-Ti QC to be used as an organic molecule sensor has been experimentally and theoretically demonstrated.

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Section: Introductionmentioning

confidence: 94%