Optical Photoluminescence Research Articles

Annealing effect on the morphology, linear and non-linear optical properties of squaraine derivative thin films for optoelectronics applications

Squaraine is a class of organic compounds that possess unique optical properties, including strong absorption of light, high fluorescence quantum yields, etc. Here, we explore the structural and spectroscopic investigations of 2,4-Bis[4-(N,N-dibenzylamino)-2,6 dihydroxyphenyl] squaraine dye (SQ) under different conditions of thermal effects. The molar absorptivity (εmolar) spectra were used to describe the electric dipole strength (q2) and the oscillator strengths (f) of SQ dye. The Surface morphology of SQ dye was investigated by AFM and the average roughness shows dependence on the annealing effect. A slight change in the optical energy gap (⁓ 0.3 eV) after annealing up to 473 K reflects the optical stability of our investigated thin films. The optical band transitions and photoluminescence (PL) emission spectra were described before and after annealing at 423 & 473 K. As the temperature annealing film increased to 473 K, the nonlinear parameters such as χ(3) and n2 decreased by about 44% and 36%, respectively. The good thermal stability, suitable optical band gap, and refractive index offer potential applications as active photonic materials in photonic/optoelectronic applications.

Evidence of Yb3+ band broadening and continuous wave laser operation in bismuth modified KY1-x-yBixYby(WO4)2 mixed single crystals

To increase the Yb3+ optical bandwidths in highly anisotropic β:KY(WO4)2 (KYW) type laser single crystals, the simultaneous contributions of the Bi3+ 6 s2 lone electron pair and Y3+/Bi3+ ionic radii mismatch is proposed. The top seeded solution growth method with K2W2O7 as solvent was used to grow Yb doped single crystals of the KY(WO4)2/KBi(WO4)2 (KYBiW) solid solution. Crystals obtained across the used KY1xBixW solid solution range show always the low temperature β phase, with the monoclinic C2/c crystalline structure, but important differences between the Y/Bi composition of the starting solute and that of the crystal grown are found. The incorporation of Y and Yb into the crystal is preferential, resulting in a low Bi segregation coefficient, SBi= 13%, on the KYW side but near SBi= 90% in the KBiW side (Yb is still strongly incorporated filling the remaining 10%). The saturation temperature of the melt decreases as the Bi concentration in the precursor KY1-x-yBixYby(WO4)2/K2W2O7 mixture increases. Evidence of optical absorption and photoluminescence broadening of the Yb3+ bands with Bi3+ incorporation is derived from 6 K and 300 K measurements. Laser operation of KY1-x-yBixYby(WO4)2 crystals is shown to be comparable to that of KY1−yYby(WO4)2 ones. Up to ≈ 0.5 W of output power is obtained pumping in continuous wave regime with a Ti sapphire laser with slope efficiency η ≈ 65% and pump threshold< 200 mW, which is within the usual performance of KYW:Yb crystals, but the spectral distribution of the laser output in KYBiW:Yb crystals is larger than that for KYW:Yb. This spectral broadening may help in the reduction of ultrashort (fs) laser pulse duration generated by modelocking.

LARGE-SCALE SYNTHESIS OF HOMOGENEOUS WS2 FILMS BY PHYSICAL VAPOR DEPOSITION

TMDs are semiconductors, unlike graphene, and have a direct bandgap when converted from bulk to thin film. This property makes TMDs an ideal material for optoelectronic and photovoltaic applications due to their strong optical absorption and photoluminescence effect. The WS2, a popular TMD, has unique properties such as low friction coefficient, high thermal stability, and good electrical conductivity, and a bandgap energy of approximately 1.2 eV and 2.2 eV for indirect and direct behaviors. The article also discusses various methods for synthesizing WS2, including chemical vapor deposition (CVD), physical vapor deposition (PVD), hydrothermal synthesis, and solvothermal synthesis. PVD is a scalable method for producing large-area films and coatings with high quality, but the difficulty of controlling the sulfur or selenium sources in this method leads to the need for optimizing growth parameters for large-scale and high-quality WS2 film synthesis. The study reports the successful growth of large-scale and homogeneous WS2 films on a glass substrate using PVD and optimized substrate temperature. The results of this study provide valuable information for the advancement of WS2 film growth techniques and the development of WS2-based semiconductor technologies, such as transistors, diodes, photodetectors, and solar cells.

Electrical, optical, and magnetic properties of amorphous yttrium iron oxide thin films and consequences for non-local resistance measurements

We present magnetic characterization, charge resistivity, and optical photoluminescence measurements on amorphous yttrium iron oxide thin films (a-Y–Fe–O), with supporting comparisons to amorphous germanium (a-Ge) films. We measured magnetic properties with both SQUID magnetometry and polarized neutron reflectometry. These results not only confirm that a-Y–Fe–O is a disordered magnetic material with strong predominantly antiferromagnetic exchange interactions and a high degree of frustration, but also that it is best understood electrically as a disordered semiconductor. As with amorphous germanium, a-Y–Fe–O obeys expectations for variable-range hopping through localized electron states over a wide range of temperature. We also clarify the consequences of charge transport through such a semiconducting medium for non-local voltage measurements intended to probe spin transport in nominally insulating magnetic materials. We further compare non-local resistance measurements made with “quasi-dc” automated current reversal to ac measurements made with a lock-in amplifier. These show that the “quasi-dc” measurement has an effective ac current excitation with frequency up to approximately 22 Hz, and that this effective ac excitation can cause artifacts in these measurements including incorrect sign of the non-local resistance. This comprehensive investigation of non-local resistance measurements in a-Y–Fe–O shows no evidence of spin transport on micrometer length scales, which is contrary to our original work, and in line with more recent investigations by other groups.

Optimization of precursor concentration in formamidinium lead bromide thin films for perovskite-based light-emitting diode applications

Formamidinium lead bromide perovskite (FAPbBr3) are known as promising materials for light emitting diode (LED) applications in green range of electromagnetic waves due to their excellent optical and electrical properties and photoluminescence maxima located in 520–540 nm range. LED device performance based on FAPbBr3 is hindered by crystallinity of the film and morphological issues. In this study, we fabricated green FAPbBr3 LEDs using a two-step preparation method. We used thermal evaporation method to deposit PbBr2 films and then perovskite films were formed after spin coating FA solution on evaporated samples. By controlling the solution concentration, we obtained thin films with optimized morphology and grain size which resulted in LED device with green electroluminescence (EL). Turn-on voltage (and threshold voltage) is of importance. Lower threshold voltage and/or turn-on voltage is desirable for electronic devices. The EL spectrum has a full width at half-maximum (FWHM) parameter as narrow as 36 nm, a turn-on voltage of 2 V, and a luminance of 100 Cd cm−2. Moreover, the issue of color is very important in Pe-LED, and therefore, our finding is important. The novelty of the work is that to our knowledge, no one has obtained this value with the present synthesize method (Solution process method).

Photoluminescence of GaAsSb/AlAsSb superlattices for investigating band structure

To study the band structure of GaAsSb/AlAsSb systems grown on InP substrates, optical absorption and photoluminescence (PL) measurements were performed. The measurements utilized GaAsSb/AlAsSb superlattice (SL) samples to investigate the optical properties of the system. By comparing optical absorption and photoluminescence (PL) measurements, it was determined that the non-radiative transition occurred at lower energy levels than the PL transition energy in the sample with the narrowest well width. The excitation power dependence of PL measurements exhibited an almost linear power law of peak intensity, suggesting high-quality luminescence properties of GaAsSb/AlAsSb SLs. In addition, the sample with the narrowest well width exhibited a blueshift of the PL transition energy as a function of the excitation power between square and cubic root laws. To explain these experimental observations, quantized energies in SLs were calculated using the band structures that were suggested and modified using an established band parameter. The most plausible band structure was revealed by comparing experimental observations with the calculations. PL from the SL samples was found to occur within the GaAsSb well (type I) in between the gamma point (Γ) of the conduction band and the heavy hole (HH) energy level in the valence band. To understand the underlying causes of the blueshift phenomenon, a self-consistent calculation that solves the Schrödinger and Poisson equations was performed iteratively as a function of carrier density. As a result, the blueshift of transition energy with an increase in the carrier density was confirmed in the type-I transition between Γ and HH bands if the lowest transition was type II between L for AlAsSb and HH for GaAsSb bands. The Hartree potential due to the separately confined electrons and holes in the SLs slightly narrowed the GaAsSb well width by modifying the conduction band.

Modification of the Physical Properties of a Nafion Film Due to Inclusion of n-Dodecyltriethylammonium Cation: Time Effect.

This study investigates the effects of modifying commercial Nafion-212 thin films with dodecyltriethylammonium cation (DTA+) on their electrical resistance, elastic modulus, light transmission/reflection and photoluminescence properties. The films were modified through a proton/cation exchange process for immersion periods ranging from 1 to 40 h. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were employed to analyze the crystal structure and surface composition of the modified films. The electrical resistance and the different resistive contributions were determined via impedance spectroscopy. Changes in the elastic modulus were evaluated using stress-strain curves. Additionally, optical characterization tests, including light/reflection (250-2000 nm) and photoluminescence spectra, were also performed on both unmodified and DTA+-modified Nafion films. The results reveal significant changes in the electrical, mechanical and optical properties of the films, depending on the exchange process time. In particular, the inclusion of the DTA+ into the Nafion structure improved the elastic behavior of the films by significantly decreasing the Young modulus. Furthermore, the photoluminescence of the Nafion films was also enhanced. These findings can be used to optimize the exchange process time to achieve specific desired properties.

Local piezoelectric doping of monolayer WSe2

We report non-contact local doping of a monolayer WSe2 transferred onto a piezoelectric substrate having surface potential wells (SPWs) induced by structural inhomogeneities. We used epitaxial GaN and InP/GaInP2 structures, in which there are SPWs ∼0.2 V deep and 0.1–2 μm in size. Using surface topography and potential scanning probe microscopy, as well as optical reflectance, photoluminescence, and Raman spectroscopy measurements, we observed strong enhancement of charged exciton emission and Raman intensity in the SPW regions of the monolayer WSe2, which indicate on piezoelectric doping at a level n ≥ 1012 cm−2 on a length scale ∼0.2–1 μm. Our results can be used to create electron/hole quantum puddles with anyon states in transition metal dichalcogenides, promising for the development of room temperature and magnetic-field-free fault-tolerant topological quantum computing.

Optical cooling at the optimal SPR angle of a glass–ITO–CdSe/ZnS(QDs) interface

In practice, cooling effects must dominate over heating associated with nonradiative decay and multiphonon emission to attain optical cooling in semiconductors. Although quantum confinement nanostructures (e.g., quantum dots [QDs]) have been used to reduce the self-absorption of anti-Stokes luminescence, their low quantum efficiency precludes high light extraction, thus reducing net cooling generation. Superficial plasmon resonance (SPR) generated in some metal–dielectric interfaces provides an efficient way to tune and enhance the optical properties and photoluminescence (PL) of QDs. In this work, the optimal SPR angle (θSPR) was used to enhance the PL of CdSe/ZnS core–shell QDs, and hence their cooling properties, in a glass–indium tin oxide–QD interface. Three excitation wavelengths (λexc = 405, 532, and 640 nm) were used to evaluate the cooling properties. The best results were obtained when λexc = 640 nm. A PL increment and temperature decrement (Δt) of 2-fold and 4 °C, respectively, were obtained at θSPR in 50 min due to the generation of anti-Stokes PL by the QDs and the enlargement of such generated PL because of the presence of the SPR effect at the interface.

Structural and Optical Characterisation of Size-Selected Glutathione-Capped Colloidal Cu–In–S Quantum Dots

Size-selected series of copper-deficient colloidal Cu–In–S quantum dots (QDs) stabilized with glutathione are obtained by the exchange reaction in aqueous solutions under mild synthesis conditions. The optical bandgap and photoluminescence maximum position shift toward higher energies with decreasing QD size. Based on X-ray diffraction data, the QDs are assigned to a tetragonal chalcopyrite-type structure. The average size of QDs, estimated from the Scherrer formula and from the comparison with the absorption edge-based sizing curves, exhibits a fair agreement, being in the interval of 1.2–2.9 nm. The Raman spectra of Cu–In–S QDs are analyzed with the account for the QD structure, confinement-related effects, non-stoichiometry, and possible existence of secondary phases.

Magnetic coupling for highly efficient and tunable emission in CsCdX3:Mn perovskites

All-inorganic ABX3 (X = Cl,Br,I) can work as an ionic luminescence material in optoelectronic field. Here Mn-doped CsCdCl3 hexagonal perovskite powders were synthesized and found to give bright orange-yellow colored emission at room temperature with an astonishingly quantum yield close to 100% at successful incorporation of 2.1% atomic ratio Mn ions. This enhanced emission comes from the local magnetic polaron—combined STEs with ferromagnetic Mn–Mn pair d-d transition (4T1→6A1) in replacement of Cd dimers in the CsCdCl3 lattice. Compared with CsCdBr3, this local magnetic polaron rely on the magnetic couplings, for example, in the Mn ions in the octahedral point and edge alternately connected 1-d chain and between 1-d chains, upon Mn concentrations. The magnetic coupling can modify the optical absorption edge and photoluminescence quantum yield (PLQY), and tune emission color from yellow to red. The PLQY maximum occurs at 350 K. The more Mn–Mn FM coupling in denser Mn-X octahedra face-shared chains in the bromides lead to a larger emission redshift than in the chloride. The magnetic coupling in the perovskite out of local Mn connection styles (separated, or point, edge and face shared TM ions) can determine its PLQY and emission color, which is useful in the future material design and optoelectronic or spintronic devices.

Kinetic parameters and luminescence properties of rare earth (Tb, Nd) doped and transition metal (Mn) doped/co-doped YAlO3 prepared via sol-gel method

In this work, phosphor materials with the formula YAlO3 were synthesized via sol-gel method by using the stoichiometric amounts of yttrium nitrate and aluminum nitrate as base materials. The obtained phosphors were doped/co-doped with Tb3+, Nd3+ rare earth ions and Mn2+ transition metal ion. For evaluating the influence of the dopants, the grain size and morphology of the samples by scanning electron microscopy (SEM) and the phase and crystallinity of the synthesized materials by X-ray diffraction (XRD) were investigated. Optical absorption spectra, photoluminescence (PL) and thermoluminescence (TL) were performed to determine a relationship the changing dopant on luminescence properties of YAlO3. Moreover, the kinetic parameters namely activation energy (E), order of kinetics (b) and frequency factor (s) of the synthesized pure and doped materials were calculated using Computerized Glow Curve Deconvolution (CGCD) and Peak Shape Method for a better understanding of the optical properties that change with the doping process. Strong green emission was detected in the sample doped with Mn2+ correspond to 4T1(G)→6A1(S) transition. As for YAlO3: Nd3+, characteristic emissions originated from 4G11/2 → 4I9/2 (∼423 nm), 4G9/2 → 4I9/2 (∼460 nm) and 4G7/2 → 4I9/2 (∼540 nm) transitions were seen. The optical band gap of undoped sample was calculated as 2.79 eV and depending on the presence of Nd3+ and Tb3+ dopant ions this value was decreased to the range 2.46–2.56 eV.

Optical spectroscopy of the PbI2 single crystals doped with Fe, Ni, and Mn

The optical absorption and photoluminescence spectra of the PbI2:Fe, PbI2:Ni, and PbI2:Mn single crystals grown from the vapour phase are studied. The investigated crystals reveal a fundamental absorption edge at 510–530 nm. The PbI2:Fe and PbI2:Mn crystals also show ligand-to-metal charge transfer bands in the UV–violet range. Charge transfer transitions are also observed in the luminescence spectra of the PbI2:Fe crystal. The PbI2:Ni and PbI2:Mn crystals show an intrinsic luminescence band at 530–540 nm. The PbI2:Mn crystal also exhibits a weakly-resolved emission band near 620 nm assigned to Mn2+ ions. The corresponding excitation spectrum shows several bands ascribed to the 3d – 3d transitions of Mn2+ ions. Analysis of the crystal field splitting for Mn2+ ions in the PbI2:Mn crystal is carried out as well as the Racah parameters (B, C) and crystal field strength (Dq) are calculated. The Tanabe–Sugano diagram for Mn2+ ions in the PbI2:Mn crystal is built and discussed.

Optical Properties of Conical Quantum Dot: Exciton-Related Raman Scattering, Interband Absorption and Photoluminescence.

The current work used the effective mass approximation conjoined with the finite element method to study the exciton states in a conical GaAs quantum dot. In particular, the dependence of the exciton energy on the geometrical parameters of a conical quantum dot has been studied. Once the one-particle eigenvalue equations have been solved, both for electrons and holes, the available information on energies and wave functions is used as input to calculate exciton energy and the effective band gap of the system. The lifetime of an exciton in a conical quantum dot has been estimated and shown to be in the range of nanoseconds. In addition, exciton-related Raman scattering, interband light absorption and photoluminescence in conical GaAs quantum dots have been calculated. It has been shown that with a decrease in the size of the quantum dot, the absorption peak has a blue shift, which is more pronounced for quantum dots of smaller sizes. Furthermore, the interband optical absorption and photoluminescence spectra have been revealed for different sizes of GaAs quantum dot.

Enhanced luminescence sensing performance and increased intrachain order in blended films of P3HT and cellulose nanocrystals

Blended films comprising poly(butyl acrylate) (PBA)-grafted cellulose nanocrystals (CNCs) and poly(3-hexylthiophene) (P3HT), exhibited more intense photoluminescence (PL) and longer PL emission lifetimes compared to pristine P3HT films. Optical absorption and photoluminescence spectra indicated reduced torsional disorder i.e. enhanced backbone planarity in the P3HT@CNC blended composites compared to the bare P3HT. Such molecule-level geometrical modification resulted in both smaller interchain and higher intrachain exciton bandwidth in the blended composites compared to the bare P3HT, because of reduced interchain interactions and enhanced intrachain order. These results indicate a potential switch of the aggregation behavior from dominant H-aggregates to J-aggregates, supported by Raman spectroscopy. The reorganization of micromolecular structure and concomitant macroscopic aggregation of the conjugated polymer chains resulted in a longer conjugation length for the P3HT@CNC blended composites compared to the bare P3HT. Additionally, this nanoscale morphological change produced a reduction in the highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) energy gap of the blends, evidenced from optical absorption spectra. Classical molecular dynamics simulation studies predicted the probability of enhanced planarity in the polymer backbone following interactions with CNC surfaces. Theoretical results from density functional theory calculations corroborate the experimentally observed reduction of optical bandgap in the blends compared to bare P3HT. The blended composite outperformed the bare P3HT in nitro-group PL sensing tests with a pronounced difference in the reaction kinetics. While the PL quenching dynamics for bare P3HT followed Stern–Volmer kinetics, the P3HT@CNC blended composite exhibited a drastic deviation from the same. This work shows the potential of a functionalized rod-like biopolymer in tuning the optoelectronic properties of a technologically important polymeric organic semiconductor through control of the nanoscale morphology.

Synthesis, Crystal Structure, Vibrational Study, Optical Properties and Hirshfeld Surface Analysis of a New Centrosymmetric Hybrid Material, Bis(3-Aminoquinolium) Tetrachloridocobaltate (II)

Abstract: The title organic-inorganic hybrid compound (C9H9N2)2[CoCl4] crystallizes at room temperature in the monoclinic C2/c space group. Its atomic arrangement can be described as an alternation of organic-inorganic layers along the c-axis. Crystal cohesion of the compound is achieved through N-H…Cl hydrogen bonds between the anions and cations and through cycle stacking interactions between organic cations. The vibrational properties were studied by Fourier Transform Infrared (FTIR) spectroscopy. The three-dimensional Hirshfeld surface (3D-HS) analysis and the two-dimensional fingerprint plots (2D-FP) were generated to quantify the weak intermolecular interactions present in the crystal. The optical properties were investigated by optical absorption and photoluminescence measurements. The band gap energy indicates that the compound behaves as an insulator material. Photoluminescence results suggest that the title compound can have a potential application as a non-linear optical material.

Core and Shell Contributions to the Phonon Spectra of CdTe/CdS Quantum Dots

The parameters of the shell and interface in semiconductor core/shell nanocrystals (NCs) are determinant for their optical properties and charge transfer but are challenging to be studied. Raman spectroscopy was shown earlier to be a suitable informative probe of the core/shell structure. Here, we report the results of a spectroscopic study of CdTe NCs synthesized by a facile route in water, using thioglycolic acid (TGA) as a stabilizer. Both core-level X-ray photoelectron (XPS) and vibrational (Raman and infrared) spectra show that using thiol during the synthesis results in the formation of a CdS shell around the CdTe core NCs. Even though the spectral positions of the optical absorption and photoluminescence bands of such NCs are determined by the CdTe core, the far-infrared absorption and resonant Raman scattering spectra are dominated by the vibrations related with the shell. The physical mechanism of the observed effect is discussed and opposed to the results reported before for thiol-free CdTe Ns as well as CdSe/CdS and CdSe/ZnS core/shell NC systems, where the core phonons were clearly detected under similar experimental conditions.

Influence of starch capping effect on optical absorption and photoluminescence behaviour of ZnS nanoparticles

The green chemical of route synthesis followed and the precursor compounds taken during the synthesis of ZnS nanoparticles (NPs) play an imperative role on their structural and photo physical properties. The green chemical route of synthesis of NPs is proved to be an advantageous method imparting novel properties to the synthesized NPs. Present study involves the synthesis of uncapped and starch capped ZnS NPs by a facile chemical coprecipitation technique. ZnS NPs have been synthesized using zinc acetate and sodium sulfide as precursors. The structural and morphological features of the samples were studied by Xray diffraction (XRD) and field emission electron microscopy (FESEM). Fourier transform infra red spectra (FTIR) was carried out to confirm capping by starch. Compositional analysis was done by electron dispersive spectroscopy (EDS). Optical properties were analyzed using UVabsorption spectra and photoluminescence (PL) measurements. Formation of ZnS NPs with cubic phase was revealed by XRD and quantum confinement effect by the UV absorption. With increase in capping agent (starch) concentration PL intensity decreased. Such heavy metal free, nontoxic ZnS nanoparticles are suitable for optoelectronic applications.

Thermally stable Sm3+ -doped alkali zinc alumino borosilicate (AZABS) glass for warm white light generation and w-LED applications.

Samarium ion (Sm3+ )-doped alkali zinc alumino borosilicate (AZABS) glass was synthesized via quick melt quench technique. Various spectroscopic studies like optical absorption, photoluminescence (PL) emission, PL excitation, temperature-dependent PL and PL decay kinetics were performed on the as prepared glass system. Under 402 nm excitation, three sharp bands at wavelengths 563, 599 and 645 nm corresponding to transitions 4 G5/2 → 6 H5/2 , 6 H7/2 and 6 H9/2 , respectively, can be seen in the PL emission spectra. The 0.25 mol% Sm3+ glass has the highest intensity for these emissions. The lanthanide interaction in the glass matrix is dipole-dipole in nature as was proven from Dexter's analysis. The direct bandgap of 0.25 mol% Sm3+ -doped AZABS glass was calculated to be 2.88 eV. The lifetimes of the as prepared glass range from 1.93 ms for the lowest concentration of Sm3+ to 0.75 ms for the highest. From temperature dependent PL studies, the activation energy for 0.25 mol% Sm3+ -doped AZABS glass was found to be 0.19 eV which shows high thermal stability of this glass. We propose to utilize these Sm3+ -doped AZABS glasses for white-light emitting diodes (w-LEDs) and solid-state lighting (SSL) applications.

Single Crystal Investigations, Hirshfeld Surface Analysis, DFT Studies, Molecular Docking, Physico-Chemical Characterization, and Biological Activity of a Novel Non-Centrosymmetric Compound with a Copper Transition Metal Precursor.

A novel organic-inorganic hybrid non-centrosymmetric superconductor material [2-ethylpiperazine tetrachlorocuprate(II)] has been synthesized and investigated by means of Fourier transform infrared spectroscopy, single-crystal X-ray crystallography, thermal analyses, and density functional theory (DFT) studies. The single-crystal X-ray analysis indicates that the studied compound crystallizes in the P212121 orthorhombic space group. Hirshfeld surface analyses have been used to investigate non-covalent interactions. Organic cations [C6H16N2]2+ and inorganic moieties [CuCl4]2- alternatively connect N-H···Cl and C-H···Cl hydrogen bonds. In addition, the energies of the frontier orbitals, highest occupied molecular orbital, lowest unoccupied molecular orbital, the reduced density gradient analyses and quantum theory of atoms in molecules analyses, and the natural bonding orbital are also studied. Furthermore, the optical absorption and photoluminescence properties were also explored. However, time-dependent/DFT computations were utilized to examine the photoluminescence and UV-vis absorption characteristics. Two different methods, 2, 2-diphenyl-1-picryhydrazyl radical and 2,2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid radical scavenging, were used to evaluate the antioxidant activity of the studied material. Furthermore, the title material was docked to the SARS-CoV-2 variant (B.1.1.529) in silico to study the non-covalent interaction of the cuprate(II) complex with active amino acids in the spike protein.