Plasmonic Effects in Tin Disulfide Nanostructured Thin Films Obtained by the Close-Spaced Vacuum Sublimation

Abstract

This work reports the investigation of plasmonic effects in tin disulfide (SnS 2 ) nanostructured films obtained by the close-spaced vacuum sublimation method (CSS). Structural properties and phase composition of SnS 2 films were studied with the help of field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), Xray diffraction (XRD) and Raman spectroscopy. Surface morphology and optical polarization properties of SnS 2 films deposited at different substrate temperature were investigated by modulation-polarization spectroscopy (MPS). Surface plasmon resonances (SPR) with localized and polariton types were observed by measuring of angular and spectral characteristics of polarization difference. Radiative and nonradiative modes of surface plasmons have been analyzed at different light incident angles. The influence of surface morphology on resonant parameters of different types of SPR was studied. Correlation between the experimental results and theoretical calculations was established. The refractive and absorption indexes were found for the SnS 2 films at different substrate temperature.

Fabrication of (Ge0.42Sn0.58)S Thin Films via Co-Evaporation and Their Solar Cell Applications

“…The spectral peaks of the SnS thin film could be a ributed to orthorhombic SnS; peaks were observed at 95.9 cm −1 (Ag), 164.0 cm −1 (B3g), 192.0 cm −1 (Ag), and 219.5 cm −1 (Ag) (the vibrational modes are indicated in brackets) [35]. No peaks a ributable to GeS and SnS2 were observed [36,37]. A higher-wavenumber peak shift was observed in the (Ge0.42 Sn0.58)S spec- Figure 3 shows the Raman spectra of the SnS [32] and (Ge 0.42 Sn 0.58 )S thin films.…”

“…Raman spectra of the fabricated SnS [32] and (Ge 0.42 Sn 0.58 )S (red and blue lines, respectively) thin films. The reference Raman spectra of SnS [35], GeS [36], and SnS 2 [37] are shown by black lines at the bottom of the figure.…”

Ultracompact MXene V2C-Improved Temperature Sensor by a Runway-Type Microfiber Knot Resonator

“…This will lead to an increase in the coupling loss factor of the resonator structure. The increase in the coupling loss factor will cause the resonant state to deviate from the critical coupling [ 39 ]. Therefore, the resonant ER can be found to decrease with increasing temperature near the resonant wavelength.…”

Antireflection Enhancement by Composite Nanoporous Zeolite 3A–Carbon Thin Film

“…The typical morphology and energy dispersive analysis of X-rays (ΕDX) have been investigated [10,11,12]. AR and optical-polarization properties for the zeolite 3A with 100 μm thickness and zeolite/Au composite film deposited onto (111) p-type silicon using modulation polarimetry have also been investigated [12,13,14,15].…”