Study Of Temperature Dependence Research Articles

Hybrid Bilayer Interfaces within Reversed-Phase Chromatographic Silica Formed by Self-Assembly of Long-Chain Primary Alcohols.

Modification of silica interfaces by covalent attachment of functional ligands is a primary means of controlling the interfacial chemistry of porous silicas used in separations, environmental cleanup, and biosensing. Recently, modification of hydrophobic, n-alkyl-silane-functionalized interfaces has been achieved through self-assembly of zwitterionic phospholipids or mixed-charged surfactants to form "hybrid bilayers", producing interfaces that mimic lipid-bilayer partitioning and provide shape-selective partitioning of aromatic hydrocarbons. Charged headgroups, however, introduce electrostatic interactions that strongly influence the retention of ionizable solutes and require careful control over pH and ionic strength in the solution phase. In this work, we propose modification of C18-functionalized chromatographic silica surfaces through self-assembly of long-chain primary alcohols to form uncharged hybrid-bilayer surfaces. Hybrid bilayers formed from alcohols ranging from C12OH to C22OH are investigated with in situ confocal-Raman microscopy, and the spectra indicate that they form highly ordered n-alkane structures, with order increasing as a function of alcohol chain length. Temperature-dependent Raman spectra of C12OH-C22OH hybrid bilayers were collected to investigate their melting transitions. Multivariate curve resolution of these spectra show broad, two-component melting transitions, indicating alcohol and C18 alkyl chains melt simultaneously. These results suggest an interdigitated interfacial structure, where the hydrocarbon chains of the adsorbed alcohol extend into the underlying C18 chains, ordering both layers. Interdigitation is confirmed by a temperature-dependent study of a deuterated C16-OH bilayer, where spectrally resolved Raman bands from deuterated and protiated hydrocarbons melt together. Finally, n-alkyl alcohol bilayers were tested for protein repellency, where no protein adsorption was observed when equilibrated with ∼1 mg/mL bovine serum albumin. Bilayers C16OH in chain length are shelf stable at refrigerated temperatures for months. These results demonstrate long-chain alcohol bilayers can be utilized to control the interfacial hydrocarbon structure of C18-modified silica and have potential for use in separations, biosensing, and anti-biofouling applications.

Achieving 32.9% efficiency in Pb-Based quantum dot solar cells via SCAPS-1D simulation optimization

Abstract This study presents a comprehensive investigation and in-depth analysis of the optimization of Pb-based quantum dot solar cells (QDSCs), concentrating on the influences of doping concentration, absorber layer thickness, defect density, temperature, and resistive elements. We systematically examined three absorber materials: lead sulfide (PbS), tetrabutylammonium iodide-treated PbS (PbS-TBAI), and lead selenide (PbSe) quantum dots (QDs). Optimal doping concentrations of 1 × 10 17 cm−3 for PbS and 1 × 10 22 cm−3 for both PbS-TBAI and PbSe were identified. Our findings reveal that precise control of these parameters can significantly enhance power conversion efficiency (PCE), achieving values of 24.6%, 28%, and 26.2% for PbS, PbS-TBAI, and PbSe, respectively. Additionally, we investigated the impact of absorber layer thickness on device performance. We discovered that a 1 µm thickness for PbS yields a maximum PCE of 32.9% due to balanced photon absorption and reduced Shockley–Read–Hall recombination. Conversely, PbSe’s performance declined with increased thickness because of its layer-dependent bandgap. We found that lower defect densities ( 1 × 10 14 cm−3) critically improve PCE and fill factor across all materials. The temperature-dependent studies demonstrated that PbS-TBAI exhibits remarkable resilience, maintaining efficiency under thermal stress due to effective surface passivation. Analyses of series and shunt resistances highlighted the importance of minimizing internal resistances to optimize device performance. The proposed device structure comprises a fluorine-doped tin oxide front contact layer, a silver sulfide (Ag2S) electron transport layer, the QD absorber layer (PbS, PbS-TBAI, or PbSe), and copper(I) oxide (Cu2O) hole transport layer. Utilizing cascade band alignment, we achieved a record PCE of 32.9%. This research highlights the significant potential of Pb-based QDSCs for achieving high efficiencies through promising material and structural optimization, positioning them as competitive candidates for next-generation solar technologies. The results provide a valuable understanding of designing high-performance QDSCs, paving the way for their integration into sustainable energy solutions.

Study of temperature dependences and electrical properties of thin films of Ag2S quantum dots

The results of studying the electrical properties of thin films of colloidal quantum dots (QDs), Ag2S/SiO2 and Ag2S/SiO2/Au, are interesting and important for understanding the behavior of these materials. Additional studies made it possible to determine the temperature dependences of conductivity in the range from 300 to 360 K, which made it possible to study changes in the electrical properties of materials depending on temperature. Activation energy values obtained from linear approximations of current-voltage characteristics in Arrhenius coordinates have become key to determining energy barriers and conduction mechanisms in these systems. Decorating Ag2S quantum dots with plasmonic gold nanoparticles also has the potential to improve the electrical properties of materials and create new functional characteristics. The results obtained can have a wide range of applications in the field of nanoelectronics, optoelectronics, sensors and other technologies that require precise control of the electrical properties of materials at different temperatures. Decoration of Ag2S/SiO2 QDs with plasmonic gold nanoparticles leads to an increase in the band gap from 0.29 to 0.89 eV. This effect can be explained by the interaction between gold plasmons and Ag2S/SiO2 electrons, which leads to a change in the properties of the material. It has been shown that decorating Ag2S/SiO2 QDs with Au nanoparticles leads to a change in the type of conductivity. Finally, calculating the mobility of charge carriers according to the Mott-Gurney model allows for a deeper understanding of the conductivity mechanisms in the presented thin-film structures.

W-promoted OER Kinetics of Bimetallic hydroxide: An Experimental Analysis via Operando EIS and Temperature-Dependent Study

Developing a cost-effective and highly efficient electrocatalyst to improve oxygen evolution reaction (OER) remains a significant challenge in water splitting. A thorough understanding of reaction kinetics and the physical, chemical,...

Frequency and temperature dependent impedance studies: Impact of cobalt substitution on Ni-Zn ferrites for high frequency applications

Frequency and temperature dependent impedance studies: Impact of cobalt substitution on Ni-Zn ferrites for high frequency applications

Coexistence of room temperature magneto-chiral dichroism and magneto-electric coupling in a chiral nanomagnet.

We report herein on the magneto-chiral dichroism (MChD), investigated through near infrared light absorption, of a chiral nanomagnet showing room temperature magneto-electric coupling. The MChD signal associated with the YbIII center is driven by the magnetic dipole allowed character of the 2F7/2 ← 2F5/2 electronic transition (|ΔJ| = 1). Magnetic field and temperature dependence studies reveal an MChD signal that follows the material magnetization and persists at room temperature. These results represent the first evidence of the coexistence of magneto-chiral dichroism and magneto-electric coupling at room temperature in a molecular nanomagnet and pave the way for further studies where magneto-chiral anisotropy and magneto-electric coupling interact.

Indirect Formation of Peptide Bonds as a Prelude to Ribosomal Transpeptidation.

The catalytic competency of the ribosome in extant protein biosynthesis is thought to arise primarily from two sources: an ability to precisely juxtapose the termini of two key substrates─3'-aminoacyl and N-acyl-aminoacyl tRNAs─and an ability to ease direct transpeptidation by their desolvation and encapsulation. In the absence of ribosomal, or enzymatic, protection, however, these activated alkyl esters undergo efficient hydrolysis, while significant entropic barriers serve to hamper their intermolecular cross-aminolysis in bulk water. Given that the spontaneous emergence of a catalyst of comparable size and sophistication to the ribosome in a prebiotic RNA world would appear implausible, it is thus natural to ask how appreciable peptide formation could have occurred with such substrates in bulk water without the aid of advanced ribozymatic catalysis. Using a combination of fluorine-tagged aminoacyl adenylate esters, in situ monitoring by 19F{1H} NMR spectroscopy, analytical deconvolution of kinetics, pH-rate profile analysis, and temperature-dependence studies, we here explore the mechanistic landscape of indirect amidation, via transesterification and O-to-N rearrangement, as a highly efficient, alternative manifold for transpeptidation that may have served as a prelude to ribosomal peptide synthesis. Our results suggest a potentially overlooked role for those amino acids implicated by the cyanosulfidic reaction network with hydroxyl side chains (Ser and Thr), and they also help to resolve some outstanding ambiguities in the broader literature regarding studies of similar systems (e.g., aminolyzes with Tris buffer). The evolutionary implications of this mode of peptide synthesis and the involvement of a very specific subset of amino acids are discussed.

Optical Evidence of Interfacial Strain-Induced Ferroelectric Tuning and Enhancement in CuInP2S6 via Ferroelectric Substrate.

The precise domain control in ferroelectric CuInP2S6 (CIPS) remains challenging. A promising approach is by interfacing CIPS with the ferroelectric layer, but interface-driven ferroelectricity tunning mechanism remains unclear. Here, the demonstration of interfacial strain-induced ferroelectric tuning and enhancement in CIPS via ferroelectric substrate is reported by photoluminescence (PL) spectroscopy, combined with piezoresponse force microscopy (PFM) and density functional theory (DFT) calculations. PFM studies show that thin CIPS flakes form the same domain as that of ferroelectric PbZr0.52Ti0.48O3 (PZT) and P(VDF-TrFE) films, suggesting enhanced polar alignment in CIPS via ferroelectric substrate. PL analyses show that a significant redshift occurs for PL emission of CIPS on ferroelectric substrate compared with that on conventional substrate, revealing interface tensile strain-induced lattice change in CIPS, as further confirmed by DFT calculation. By analyzing PL spectra of monolayer MoS2 on CIPS/PZT, the polarization of CIPS is evidenced to be anti-aligned with that of ferroelectric substrate. In situ, temperature-dependent PL studies show that thin CIPS on ferroelectric substrate exhibits enhanced Curie temperature of higher than 200°C. This study not only provides an effective material strategy to engineer the ferroelectric properties of CIPS but also offers a simple optical method to reveal interface-driven ferroelectricity modulation mechanism in CIPS.

Solution-processed tungsten diselenide as an inorganic hole transport material for moisture-stable perovskite solar cells in the n-i-p architecture

Some of the obstacles to the commercialization of perovskite solar cells (PSCs) are their long-term moisture stability and material cost of the constituent layers, such as the commonly used spiro-OMeTAD hole transport layer (HTL). Replacing the spiro-OMeTAD with low-cost inorganic hole transport materials (HTMs) are important to further elevate the attractiveness of PSCs for commercialization. Perovskite-compatible, solution-exfoliated two-dimensional (2D) transition metal dichalcogenides (TMDCs) are being considered as viable candidates for inorganic HTMs. We consider one such TMDC, WSe2 which was chemically exfoliated using dichlorobenzene (DCB), a perovskite-compatible solvent, as it was integrated with triple cation perovskite absorbers within the solar cell stack. The WSe2 HTL required heat treatment processes to be maintained below 100 °C in order to preserve the integrity of the underlying perovskite; despite this lower temperature post treatment process, the structural morphology of the film revealed its dense and pinhole-free nature. Temperature-dependent transport studies conducted on the WSe2 film provided evidence of its semiconducting character and its ability to extract holes well from the underlying triple-cation Cs0.05FA0.79MA0.16PbI2.45Br0.55 absorber. The inorganic HTL offered better environmental stability in moisture-rich environments of up to 60 % relative humidity, in comparison to spiro-OMeTAD HTL-based devices which degraded faster as a result of pinholes.

Enhancing Hole Transport and Autonomous Healing Properties of Supramolecular Columns in Unsymmetrical Discotics.

Designing smart autonomous healing soft materials is crucial to attaining cost-efficiency and optimal performance in organic semiconductors. In this context, we design an unsymmetrical thiophene-fused phenazine (TFP)-based discotic liquid crystal (DLC) with the goal of creating an active organic semiconductor that encompasses favorable attributes, such as polarizability, mobility, and processability. Aligned with our objective, we successfully synthesized two unsymmetrical TFP core-based DLCs by linking alkyl chains of variable lengths at the periphery through a coupling reaction. These DLCs show room temperature columnar oblique (Colob) mesophase as evident from temperature-dependent studies employing polarized optical microscopy (POM) and small-angle X-ray scattering (SAXS). We performed space charge-limited current (SCLC) techniques to evaluate the hole mobility of TFP-based DLCs and found that they have high hole mobility (∼10-3 cm2/V s). Additionally, the film morphology and its self-healing nature have been examined using atomic force microscopy (AFM) and stress relaxation test. One of the unsymmetrical DLCs exhibited an ability to relax stress over time while maintaining a constant strain (up to 1-3%). The rational design of these unsymmetrical discotics, exhibiting reduced threshold voltage (as confirmed by conductivity studies) highlights their possible potential in various organic semiconductor devices.

The solid solutions RETi2Al20−x Ga x (0 ≤ x ≤ 10) with RE = Eu, Gd, Tb, Dy and Yb − first gallides with CeCr2Al20-type structure

Abstract The CeCr2Al20-type aluminides RETi2Al20 (RE = Eu, Gd, Tb, Dy and Yb), space group F d 3 ‾ m $Fd\overline{3}m$ , show the formation of solid solutions RETi2Al20−x Ga x with gallium in the ranges 0 ≤ x ≤ 10. Polycrystalline samples were prepared from the elements in alumina crucibles or directly via arc-melting followed by annealing in order to increase crystallinity. The structures of six single crystals were refined from single crystal X-ray diffractometer data for determining the precise occupancy parameters of the aluminum and gallium atoms. The solubility limit of gallium was found at around x ≈ 10. The RETi2Al20−x Ga x structures show a MgCu2-related substructure of the rare earth and titanium atoms. The Al/Ga atoms then form Frank-Kasper type polyhedra around the RE and Ti atoms, i. e., RE@(Al/Ga)16 and Ti@(Al/Ga12). These are the basic building units of the RETi2Al20−x Ga x structures. Temperature-dependent magnetic susceptibility studies show Pauli paramagnetic behavior for the YbTi2Al10Ga10 sample, i. e., a stable divalent ytterbium ground state.

CO2 selectivity and adsorption performance of K2CO3-modified zeolite: a temperature-dependent study.

High-performing zeolite materials for carbon dioxide capture are promising for applications such as flue gas CO2 capture. Potassium carbonate-loaded zeolites can offer a plethora of benefits. In this work, for the first time, zeolite-Y impregnated with K2CO3 was studied as a gas adsorbent (CO2, CH4, and N2) and characterized using TGA (thermogravimetric analyzer), XRD, BET, FTIR, FETEM (Field-Emission Transmission Electron Microscope), and XPS. The effect of carbonate loading, temperature, and pressure was particularly targeted and assessed. Accordingly, for a variation in K2CO3 loading from 5 to 15 wt.%, the CO2 adsorption capacity reduced from 3.61 to 1.73mmolg-1 in the synthesized adsorbents. Among all the cases, KYZC10 exhibited very good cyclic adsorption-desorption performance and thermal stability. Further equilibrium modeling studies indicate that the stable and optimally K2CO3-loaded adsorbent (KYZC10) demonstrates effective adsorption isotherm behavior, making it suitable for different temperature variation processes in commercial carbon dioxide capture applications. The KYZC10 adsorbent's stable performance at varying temperatures contributes to its enhanced economic feasibility. This study also used the ideal adsorbed solution theory (IAST) to predict CO2 selectivity over other gases (CH4 and N2).

Investigation of resistive switching behavior driven by active and passive electrodes in MoO2–MoS2 core shell nanowire memristors

Memristive devices based on layered materials have the potential to enable low power electronics with ultra-fast operations toward the development of next generation memory and computing technologies. Memristor performance and switching behavior crucially depend on the switching matrix and on the type of electrodes used. In this work, we investigate the effect of different electrodes in 1D MoO2–MoS2 core shell nanowire memristors by highlighting their role in achieving distinct switching behavior. Analog and digital resistive switching are realized with carbon based passive (multi-layer graphene and multiwall carbon nanotube) and 3D active metal (silver and nickel) electrodes, respectively. Temperature dependent electrical transport studies of the conducting filament down to cryogenic temperatures reveal its semiconducting and metallic nature for passive and active top electrodes, respectively. These investigations shed light on the physics of the filament formation and provide a knob to design and develop the memristors with specific switching characteristics for desired end uses.

Unveiling differential interaction pattern for iminium and alkanolamine forms of Sanguinarine with β-Lactoglobulin protein

A comparative study on the interaction of two tautomeric forms of sanguinarine (SANG), an alkaloid with therapeutic properties, with β-lactoglobulin (β-LG) protein was explored using spectroscopic and computational methods. The spectroscopic study reveals a high binding affinity for alkanolamine to monomeric β-LG (at pH = 9) as compared to iminium to dimeric β-LG (at pH = 6.2). Temperature dependent fluorescence study provides thermodynamic parameters for the binding process. Circular dichroism spectra showed changes in the secondary structure of the protein with major conformational transition from α-helix to β-sheets. Molecular docking and MD simulation validate the stable protein-drug complex during a 200 ns simulation period. All results clearly depict the differential interactions of two forms of SANG with β-LG protein. Overall, the characterization of SANG binding interactions with the whey milk protein provides valuable insights for pharmacological research and design of novel drug carriers based on β-LG protein.

Reusable nontoxic pyrimidine‐based oleogelators: Phase selectivity and nanostructured structuring

AbstractOver the last few decades, scientists have been working hard to produce edible structural agents those can be used in food, cosmetics, agriculture, pharmaceuticals, and biotechnology. The supramolecular assembly of simple amphiphiles in presence of edible oil is the most ideal system for this purpose because the system has no harmful health consequences. We have attempted to address the aforementioned implications in this article by synthesizing a novel class of structuring agents 2‐alkyl amino pyrimidine‐4‐carboxylic acid amphiphiles named 2‐decylamino‐pyrimidine‐4‐carboxylic acid (DPCA), 2‐dodecylamino‐ pyrimidine‐4‐carboxylic acid (DDPCA) and 2‐tetradecylamino‐pyrimidine‐4‐carboxylic acid (TDPCA), using simple procedure. To our delight, the prepared amphiphiles self‐assemble to a gel matrix in various vegetable oils and mineral oils. Microscopic analyses were used to investigate the nanostructured morphology of molecular gels. Rheological studies revealed that oleogels are mechanically processable and viscoelastic. Temperature dependent and concentration dependent proton nuclear magnetic resonance (1H‐NMR) studies were performed to analyze the hydrogen bonding and π–π interactions. The study discovered that gelators act as reusable phase selective gelators (PSG) of oil in water–oil mixture. The (3‐[4,5‐dimethylthiazol‐2‐yl]‐2,5 diphenyl tetrazolium bromide) (MTT) assay has proven that the synthetic oleogelators are nontoxic.

Evidence of conformational changes and self-aggregation of 1,2-Bis(4-pyridyl)ethylene in solutions with ethanol

In this work, we report on a concentration and temperature dependent study of the 1,2-Bis(4-pyridyl)ethylene (BPE) – ethanol solutions by means of ultrasonic relaxation spectroscopy. The results revealed two distinct relaxation processes that follow Debye-type frequency dependence. Despite the presence of both processes in the full concentration range studied, the low-frequency relaxation process, related to conformational change between the trans- and gauche-BPE conformers, dominates the acoustic spectra in the low-concentration range, while diminishes at higher concentrations with a parallel enhancement of the high-frequency relaxation process, which is attributed to the self-association of BPE molecules. Quantum mechanical calculations were performed to investigate the energetics of the trans- and gauche-conformers. The trans-species was found more thermodynamically stable than the gauche-conformer. By applying the Synchronous Transit-Guided Quasi-Newton (STQN) methodology, we confirmed the presence of a single transition structure. From the temperature dependence of the acoustic properties, we estimated the activation enthalpy and the enthalpy difference between the two conformers. Density Functional Theory (DFT) calculations have been applied to attain the corresponding enthalpies that were found close to the experimental values. Molecular docking calculations established the self-aggregation mechanism between BPE monomers forming three types of dimeric units, namely the trans-trans, the gauche-gauche and the trans-gauche dimer species with the latter found to be the most thermodynamically favorable. The concentration dependence of the sound velocity, mass density and shear viscosity evidenced the formation of BPE aggregates. From the temperature dependence of the acoustic spectra, the thermodynamic properties of the self-aggregation mechanism of BPE were also determined. Based on the vibrational spectroscopic data, the population of the gauche conformers was found to increase with concentration at the expense of the population of the trans conformers. From the study of the vibrational properties of the system in the short-rage order, we cannot exclude the presence of a specific dimer type in the overall structure. Nevertheless, regarding to the binding score of the trans-gauche dimer (-1.25 kcal/mol), this species is the most thermodynamically stable and most likely its population is higher in dense solutions relative to the other two dimer species.

Microwave assisted synthesis of ErxYbyCa1-x-yMoO4 nano-phosphor for efficient temperature sensing and catalytic applications

Here, Er/Yb Co-doped CaMoO4 materials (ErxYbyCa1−x−yMoO4 NPs where x = 0, 0.01 and y = 0, 0.05, 0.10, 0.15, 0.20) were prepared by microwave-assisted method and its pure-tetragonal structure were confirmed by X-ray diffraction spectra (XRD), Rietveld-refinement and Raman-vibrational spectra. The transmission-electron microscopy (TEM) study indicates the formation of nearly spherical shaped nanomaterial with average size of ~ 15 nm. Additionally, absorption and emission properties were studied by UV–Visible–NIR and photoluminescence (PL) spectrometer. The UV–Visible–NIR spectra attribute absorption of Er3+ ion in visible region (380–700 nm) and absorption of Yb3+ ion in near-infrared region (700–1400 nm). Moreover, PL up-conversion spectra of the sample recorded under excitation wavelength 980 nm. The PL peaks were observed at 530, 544–552, and 656–670 nm. Prominent PL-intensity was observed for Er0.01Yb0.15Ca0.84MoO4 phosphor. Temperature dependent PL study reveals that present phosphor is robust phosphor for temperature sensor. In addition, Er3+/Yb3+ doped CaMoO4 nanomaterials exhibited excellent activity and selectivity in the aerial oxidation of benzoin over benzyl under oxidant-free reaction conditions. The synergistic effect Er3+/Yb3+ co-doing in CaMoO4 matrix was observed, where only CaMoO4 material found to be inactive towards above oxidation reaction. Moreover, the oxidation of primary benzyl-alcohols was furnished in presence of tertiary butyl hydroperoxideas oxidant.

High-temperature magneto-structural coupling in the Sr(Fe1/2Nb1/2)O3 system

We report the high-temperature phase transitions in the technologically important lead (Pb-) free B-site disordered Sr(Fe1/2Nb1/2)O3 (SFN) perovskite using dc magnetization and x-ray/neutron diffraction measurements. Our dc magnetization M (T) study reveals two magnetic transitions around 620 K and 708 K for the first time. The magnetic transition occurring around 620 K is linked with the structural phase transition, as confirmed by the temperature-dependent x-ray diffraction studies. Interestingly, the octahedral tilt angle (φ) and the integrated intensity of the superlattice reflection (ISL) decrease continuously with increasing temperature and vanishes across the structural phase transition. We have modeled the temperature variation of both φ and ISL using the power law type functional dependence which suggests the tricritical nature of the phase transition. Another transition occurring around 708 K in the M (T) plot is driven by oxygen vacancies. Neutron powder diffraction analysis of SFN at 295 K shows no sharp magnetic Bragg peaks, which are characteristic of long-range magnetic order. Instead, it reveals diffuse scattering, suggesting the presence of short-range magnetic ordering.

Uncovering upconversion photoluminescence in layered PbI2 above room temperature.

As a van der Waals (vdW) layered semiconductor material, lead iodide (PbI2) possessing a direct bandgap with strong photoluminescence emission in visible range has gained wide attention in applications of photonic and optoelectronic devices. Here, upconversion photoluminescence (UPL) in exfoliated PbI2 flakes is demonstrated at room temperature and elevated temperatures. The linear power dependence of UPL emission with 532nm excitation suggests the one-photon involved multiphonon-assisted UPL emission process, which is revealed by the temperature-dependent UPL emission measurement. Meanwhile, the nonlinear power dependence of UPL emission with 561nm excitation indicates the transition of UPL emission mechanism from linear to nonlinear regime, and the temperature-dependent UPL emission study further shows that the upconversion is contributed by both the multiphonon-assisted UPL process and the two-photon absorption induced PL process. This study will provide an insight to the understanding of photon upconversion in vdW layered semiconductors and advancing applications in temperature-controlled photon upconversion, tunable photonics, photodetection and imaging.

Comparative analysis of machine learning techniques in predicting dielectric behavior of ternary chalcogenide thin films

Abstract The current research introduces a comparative analysis of the dielectric behavior exhibited by ternary chalcogenide thin films, including both experimental data and machine learning techniques. The study of temperature and frequency dependencies of dielectric parameters is crucial for assessing material losses, particularly focusing on the low-frequency range where dielectric dispersion occurs. The experimental results on the frequency (100–1000000 Hz)and the temperature(303–393 K) influences on the dielectric (constant ( ε 1 ) and loss ( ε 2 )) of A s 4 G e 24 T e 72 composition in thin film form have been discussed. Results demonstrate that ε 1 exhibits an increasing trend with temperature, attributed to heightened orientation polarization as dipoles gain mobility with elevated thermal energy. Conversely, ε 1 declines with rising frequency, reflecting diverse different polarization mechanisms. Understanding these behaviors is important for material characterization and applications in fields like electronics and solar cells. A comparative analysis of the dielectric behavior exhibited by ternary chalcogenide thin films, including both experimental data and machine learning techniques. Through the experimental approach, the dielectric properties of the films are investigated. Additionally, the study employs a range of machine learning algorithms, including Artificial Neural Networks (ANN), Adaptive Neuro-Fuzzy Inference Systems (ANFIS), Genetic Programming (GP), hybrid techniques ANFIS-GA, and ANFIS-PSO, to model and predict the dielectric behavior with remarkable accuracy. The paper presents a comparison between the performance of the proposed machine learning models, highlighting their strengths and limitations in capturing the complex dielectric phenomena observed in the ternary chalcogenide thin films. This comparative study not only provides valuable insights into the dielectric properties of these materials but also demonstrates the efficacy of machine learning in understanding and predicting their behavior, paving the way for further advancements in materials science and device development.