Localized surface plasmon resonances and electric field confinement in titanium carbide (Ti₃C₂) MXene nanoclusters

Abstract

Two-dimensional metal carbides and nitrides, known as MXenes, are an emerging class of materials that are promising for a variety of applications.

Boosting Photocatalytic Hydrogen Evolution Reaction by the Improved Mass Flow and Energy Flow Process Based on Ultrasound Waves

“…The electric field increases with the deformation variation, exhibiting that the MoS 2 suffers from the deformation, which can increase the polarization moment, causing extraordinary potential. As for the sample Au@MoS 2 , according to the Lorentz–Drude model − ε ( ω ) = 1 − f 0 ω normalp 2 ω ( ω − i Γ 0 ) + ∑ j = 1 m f j ω p 2 false( ω j 2 + ω 2 false) + i ω Γ j where ω p is the plasma frequency with oscillator strength f 0 and damping constant Γ 0 and m is the number of oscillators with frequency ω j , strength f j , and damping constant Γ j . The electric field can be defined using the equation − E ( r , ω ) = false| E 0 ( r , ω ) + δ E t ( r , ω ) false| false| E …”

“…As for the sample Au@MoS 2 , according to the Lorentz–Drude model − where ω p is the plasma frequency with oscillator strength f 0 and damping constant Γ 0 and m is the number of oscillators with frequency ω j , strength f j , and damping constant Γ j . The electric field can be defined using the equation − where E 0 ( r , ω) and E t ( r , ω) are the local electric fields along the different directions. Thus, the plasmonic local electric field heavily depends on the plasma frequency ω, which can be tuned through the dielectric constant of the environment.…”

Interface plasmon damping in the Cd33Se33/Ti2C MXene heterostructure

“…In this regard, MXenes exhibit remarkable optical properties such as tunable broadband absorbance and intense, focused plasmons. 51–63…”

Photo-response of water intercalated Ti3C2O2 MXene

“…Because of their superior metallic properties compared to typical conductors like noble metals, they are extremely desirable for optical and plasmonic applications. [59][60][61][62] It is important to note that a number of optical signatures have recently been reported in MXenes. For instance, El-Demellawi and colleagues examined the effects of altering the surface terminations of Ti 3 C 2 T x by thermally desorbing F functional groups.…”