Journal of Physics and Chemistry of Solids最新文献

{"title":"Ab initio prediction of optoelectronics behavior of Pr+3, Sm+3 doped in novel niobates Y3NbO7 phosphors using GGA+U functional: A study for optoelectronics devices","authors":"Muhammad Imran ,&nbsp;Sikandar Azam ,&nbsp;Amin Ur Rahman ,&nbsp;Muhammad Aamer ,&nbsp;Yusuf Siraj Usmani ,&nbsp;Muhammad Tahir Khan","doi":"10.1016/j.jpcs.2024.112532","DOIUrl":"10.1016/j.jpcs.2024.112532","url":null,"abstract":"<div><div>The conversion of blue light to white light may now be done more effectively than with non-rare-earth red phosphors (LEDs), It makes it possible to swap out ageing incandescent light bulbs for more energy-efficient light emitting diodes. Yttrium Niobate Y₃NbO₇: Pr⁺³, Sm⁺³ phosphors have a narrow band emission that is brightly red or yellowish-red in color, making it possible to create high-power phosphor-converted LEDs (pc-LED) using this combination. Through analyzing the optoelectronic properties of Y₃NbO₇ and Y₃NbO₇: Ln⁺³ (Ln = Pr, Sm) phosphor compounds, we gained fundamental knowledge of pc-LED activity by computing band gap values using the most recent methodology, density functional theory (DFT). The correlation of the Sm, Pr -f orbitals with the GGA + U was taken into account for the doped Y₃NbO₇: Ln⁺³ (Ln = Pr, Sm) material. Throughout the research, we analyzed the electrical characteristics and optical responses of both materials. The parent compound Y₃NbO₇ band gap is decreased with Pr, Sm doping, resulting in significant absorption at higher energy wavelengths (from blue to green). Additionally, we computed a number of photon energy-related functions, including the complex dielectric function's imaginary and real components, refractive index, absorption coefficient, electron energy loss spectrum, reflectivity, optical conductivity, and extinction coefficient.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112532"},"PeriodicalIF":4.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insights into the electronic, mechanical and thermodynamic properties of pyrochlore oxides A2B2O7: A first-principles study","authors":"Shakeel Shakeel ,&nbsp;Peng Song ,&nbsp;Taihong Huang ,&nbsp;Syed Hatim Shah ,&nbsp;Tao Wang ,&nbsp;Khalid M. Alotaibi ,&nbsp;Kashif Safeen ,&nbsp;Javed Rehman ,&nbsp;Wassila Derafa ,&nbsp;Muhammad Faizan","doi":"10.1016/j.jpcs.2025.112551","DOIUrl":"10.1016/j.jpcs.2025.112551","url":null,"abstract":"<div><div>Pyrochlore compounds (A₂B₂O₇) have garnered significant importance in materials research due to their distinctive structural, electronic, and thermal properties, making them promising candidates for advanced applications. This study explores the potential of pyrochlore oxides—Nb₂Sn₂O₇, Pr₂Hf₂O₇, Sc₂Hf₂O₇, and Sc₂V₂O₇, through Full Potential Density Functional Theory (FP-DFT), examining their structural, electronic, elastic, and thermodynamic characteristics. The calculated results demonstrate that these compounds possess notable elastic, mechanical, and thermodynamic stability. Among them, Nb₂Sn₂O₇, Pr₂Hf₂O₇, and Sc₂V₂O₇ exhibit metallic behaviors with zero band gaps, whereas Sc₂Hf₂O₇ features an indirect band gap of 1.568 eV, primarily influenced by O-<em>p</em> states. The analysis of elastic and mechanical properties highlights their stable yet anisotropic nature, with a notable tendency towards brittleness. Thermodynamic properties including thermal expansion coefficients, Gibbs free energy, Debye temperature, and specific heat capacity over a temperature range of 200–2000 K were also evaluated using quasi-harmonic Debye approximation. The low thermal conductivity, high thermal expansion comparable to yttria-stabilized zirconia (YSZ) topcoats, and favorable mechanical properties make these compounds ideal candidates for top layers in thermal barrier coatings.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112551"},"PeriodicalIF":4.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accelerating nanocrystalline-diamond nucleation in the low-temperature MW-CVD growth of diamond-like carbon films via reacting-gas pre-heating","authors":"Brijmohan Paramanik,&nbsp;Debajyoti Das","doi":"10.1016/j.jpcs.2025.112554","DOIUrl":"10.1016/j.jpcs.2025.112554","url":null,"abstract":"<div><div>The reacting gas pre-heating is presented as a means to enhance the diamond nucleation density in the diamond-like carbon (DLC) films with embedded nanocrystallinity (NCD). Utilizing C₂H₂ as the precursor gas having low ionization potential, allows for faster NCD-embedded DLC growth. The additions of H₂, a conventional dilution gas, along with CO₂, a weak oxidant, increase the chemical activity of the growth precursors and aids in the removal of a-C phase from the growth site. Notably, the bandgap widens from 3.40 to 3.48 eV, while the <em>sp</em>³/<em>sp</em>² ratio increases from 1.9 to 2.38. Raman spectroscopy reveals higher I_Dia/I_G (0.85), I_Dia/I_D (0.94), alongside a lower I_D/I_G ratio (0.90) for the film grown at the optimum gas-pre-heating temperature (T_G = 250 °C) demonstrate the superiority of the less-stressed DLC network, with higher optical transmittance of ∼93% at 600 nm. The DLC matrix developed at a substrate-temperature (T_S) ∼300 °C holds a good quality nano-diamond phase (grain size ∼8–10 nm), containing distinct <em>trans</em>-PA peaks (1171 and 1497 cm⁻¹) and diamond peaks (1333 cm⁻¹) as the signature. The preheating of the source gas mixture elevates the precursor gas molecules’ vibrational energy states, facilitating the conversion of C₂H₂ to CH₃, which is energetically favorable for diamond nucleation.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112554"},"PeriodicalIF":4.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Colossal enhancement in ionic conductivity of La2Mo2O9 thin films: Role of lattice strain and oxygen vacancy","authors":"Avinash Patel ,&nbsp;Roshan Kumar Patel ,&nbsp;A.G.A. Rahman ,&nbsp;A.K. Pramanik ,&nbsp;Satyendra Singh ,&nbsp;Chandrani Nath","doi":"10.1016/j.jpcs.2025.112550","DOIUrl":"10.1016/j.jpcs.2025.112550","url":null,"abstract":"<div><div>Search for high oxygen-ion conducting electrolyte forms a crucial step towards lowering the operating temperature of conventional solid oxide fuel cell. Here, we report an investigation of conductivity in polycrystalline films of Er and W codoped La_1.8Er_0.2W_0.3Mo_1.7O₉ (WEr0.2), deposited on four different substrates Si(111), SrTiO₃(100), LaAlO₃(100) and MgO(100) with different growth orientation and lattice parameters. While all the films show an increase of conductivity by several orders compared to its bulk counterpart, a magnificent increase of about six orders (13 S/cm @ 375 °C) has been observed in films on Si substrate. Films with SrTiO₃ and LaAlO₃ substrate further show steep rise in conductivity around 450 °C, mimicking the undoped bulk La₂Mo₂O₉ which is triggered by structural phase transition. This large modification of conductivity is believed to be induced by interfacial strain and consequent oxygen vacancy that increases from MgO to Si substrate due to their difference in lattice parameters and growth orientation. The oxygen vacancy concentration calculated using Nernst-Einstein analysis of frequency dependent impedance data further supports an increasing oxygen vacancies in film on Si substrate. The present results show an effective way of tuning conductivity through substrate strain which would hopefully have considerable effect on much sought low temperature operation of fuel cell.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112550"},"PeriodicalIF":4.3,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expression of Concern: Investigation of the potential solar cell application of Cs2AgBiBr6 lead-free double perovskite","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112528"},"PeriodicalIF":4.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computational Screening of 2D Cs2O for photocatalysis and thermoelectric properties","authors":"S. Chellaiya Thomas Rueshwin,&nbsp;R.D. Eithiraj","doi":"10.1016/j.jpcs.2024.112547","DOIUrl":"10.1016/j.jpcs.2024.112547","url":null,"abstract":"<div><div>The escalation of global energy demand driven from many factors, leading to dwindling of non-renewable resources and pollution. To mitigate these problems, the thermoelectric systems and photocatalytic hydrogen production are viable solution. The thermoelectric and photocatalytic properties of 1T-Cs₂O was investigated theoretically. The physical properties of 1T-Cs₂O, WIEN2k software grounded on density functional theory (DFT) is utilized to investigate. Exchange correlation methods, including GGA and hybrid functionals, were implemented to investigate electronic properties, unveiling that 1T-Cs₂O is an indirect semiconductor with bandgap values of 0.73 and 1.56 eV, respectively. The dynamical and thermal stability was investigated utilizing the phonon distribution analysis and AIMD calculations. The elastic constants and elastic moduli were calculated. Optical studies revealed that 1T-Cs₂O shows a moderate absorption before 10 eV and high absorption after 10 eV. Furthermore, 1T-Cs₂O showcased as a potential candidate for thermoelectric systems, at 450 K demonstrating a figure of merit (ZT) of 0.85. The effective masses, relative ratio and the carrier mobilities of charge carriers were assessed. The mobility of the holes and electrons was determined to be 74.72 <span><math><mrow><msup><mtext>cm</mtext><mn>2</mn></msup><msup><mi>V</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup><msup><mi>s</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span> and 348.50 <span><math><mrow><msup><mtext>cm</mtext><mn>2</mn></msup><msup><mi>V</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup><msup><mi>s</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span>, respectively. The lattice parameter of 1T-Cs₂O is less than the calculated bohr radius and confirms it as Mott-Wannier type semiconductor. 1T-Cs2OThe photocatalytic studies revealed that the 1T-Cs₂O is a potential candidate for producing utilizing water splitting.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112547"},"PeriodicalIF":4.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biaxial strain enhanced electronic and photocatalytic properties of Y2CBr2 MXene","authors":"Mounir Ould-Mohamed ,&nbsp;Tarik Ouahrani ,&nbsp;Chewki Ougherb","doi":"10.1016/j.jpcs.2024.112540","DOIUrl":"10.1016/j.jpcs.2024.112540","url":null,"abstract":"<div><div>Finding a new compound that satisfies all essential requirements for effective photoelectrochemical water splitting is vital to getting rid of our reliance on fossil fuels. Strategies like the application of strain are used to increase the catalytic activity. In this case, we use density functional theory to investigate the mechanical, electronic properties, and photocatalytic water-splitting performance of the Y<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>CBr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> MXene. Our findings show that the monolayer Y<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>CBr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> is dynamically and mechanically stable at low and high temperatures. At equilibrium, Y<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>CBr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> exhibits indirect semiconducting behavior, and strain application significantly enhances its electronic structure. The Y<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>CBr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> MXene can withstand stress up to 19.40 N/m and tolerate a tensile biaxial strain limit of approximately 21.25%. Furthermore, the results from Y<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>CBr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> MXene demonstrate remarkably high electron mobility. Additionally, the strained Y<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>CBr<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> MXene also satisfies the band alignment requirements for overall water splitting, making it a promising candidate for such applications.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112540"},"PeriodicalIF":4.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, electronic, magnetic, optical, and thermoelectric properties of the perovskite oxides LaMO3 (M=Mn and Cr): An Ab initio calculations","authors":"M. Jerrari,&nbsp;R. Masrour,&nbsp;T. Sahdane","doi":"10.1016/j.jpcs.2024.112546","DOIUrl":"10.1016/j.jpcs.2024.112546","url":null,"abstract":"<div><div>This study examines the structural, magnetic, electronic, optical, and thermoelectric characteristics of the perovskite oxides LaMO₃ (M = Mn and Cr) using density functional theory (DFT), performed using generalized gradient approximation within the Hubbard parameter U to calculate the different properties of the perovskite oxides LaMO₃ (M = Mn and Cr) to correct the band-gap in the Wien2k software. Besides, the data indicate that LaMnO₃ exhibits ferromagnetic semiconductor materials, while LaCrO₃ shows antiferromagnetic semiconductor behavior. Indeed, well-detailed interpretations of optical properties. Thermoelectric properties such as Seebeck coefficient (S), electrical conductivity (σ/τ), thermal conductivity (k_e/τ), power factor (S²σ/τ), and figure of merit (ZT), Hall coefficient (R_H) are plotted and discussed versus temperature using BoltzTraP.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112546"},"PeriodicalIF":4.3,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructure regulation and performance optimization of porous ceramic supported NiS/CdS composite","authors":"Xiulan He ,&nbsp;An Huang ,&nbsp;Miao Wang ,&nbsp;Tai Jin ,&nbsp;Ling Li","doi":"10.1016/j.jpcs.2024.112549","DOIUrl":"10.1016/j.jpcs.2024.112549","url":null,"abstract":"<div><div>Porous Al₂O₃ ceramic-supported NiS/CdS composite was prepared by hydrothermal method with NiO as the template. The NiO template was fabricated with dip-calcinating technique. The effects of calcination temperature, Ni(NO₃)₂ concentration, hydrothermal temperature and reaction time on the microstructure, visible-light photocatalytic activity, and reusable property of supported NiS/CdS composite were investigated. The photocatalytic mechanism of NiS/CdS composite was studied. The results show that, the NiO template calcined at 300 °C with 1 mol L⁻¹ Ni(NO₃)₂ concentration is beneficial to providing more active sites and promoting the formation of NiS phase. The nano NiS/CdS composites distribute on the surface or in the lamellar pores of porous ceramic carrier. The supported NiS/CdS composite prepared at 180 °C soaking for 12 h achieves 99.3 % methyl orange solution degradation rate. The degradation rate of supported composite decreases from 99.3 % to 66.39 % after repeating four times. The formation of heterojunction between NiS and CdS is conducive to improving the bonding strength, loading amount, photocatalytic activity and reusability of the supported composite. The microstructure can be regulated and the performance can be improved through optimizing the process parameter.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112549"},"PeriodicalIF":4.3,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing photoluminescence dynamics, visible light driven photocatalytic dye degradation and distinctive electrical properties of cerium doped pyrimidine based covalent organic frameworks: Sustainable synthesis and structural characterization","authors":"Vinayak Adimule ,&nbsp;Santosh Nandi ,&nbsp;Pankaj Kumar ,&nbsp;Vandna Sharma ,&nbsp;Rangappa Keri ,&nbsp;Raveendra Bhat ,&nbsp;Venkatraman Hegde ,&nbsp;Sunitha DV","doi":"10.1016/j.jpcs.2024.112548","DOIUrl":"10.1016/j.jpcs.2024.112548","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) are an important class of compounds having exceptional long-range ordered structures with porosity and crystallinity. In the present study, 6-chloropyrimidine 2, 4-diamine and terephthalaldehyde were made to react in ethanol solvent at reflux conditions using the solvothermal method resulting in the formation of pyrimidine based covalent organic frameworks (PyCOFs). The synthesized PyCOFs were then functionalized with cerium (Ce) and obtained as Ce@PyCOFs. The crystal structure, microstructure, purity, and optical properties of the synthesized PyCOFs and Ce@PyCOFs were confirmed by X-ray diffraction (XRD), field emission scanning microscope (FESEM), Fourier transform infrared spectroscopy (FT-IR), and UV–visible analytical techniques. Optical studies of PyCOFs and Ce@PyCOFs revealed redshift in maximum absorbance bands with decreased the optical band gap (E_g). The mean Zeta potential of PyCOFs, and Ce@PyCOFs varies between 15.60 mV and 37.84 mV. Room temperature photoluminescence (RTPL) studies of PyCOFs and Ce@PyCOFs unveiled broad yellow-green emission peaks centered at 567.9 nm, 571.3 nm, 380 nm, 559 nm and few weak sharp emission bands at various excitation wavelengths. Further, visible light photocatalytic dye degradation studies of PyCOFs and Ce@PyCOFs against methylene blue (MB) and methyl red (MR) dyes showed degradation efficiency of 73.50 %, 78.99 % and 89.18 %, 87.34 % in 140 min and 180 min of irradiation. Further, the effect of pH on photocatalysis showed the basic medium (pH = 11) necessary for the degradation of MB dye while the acidic medium (pH = 4) was necessary for the degradation of MR dyes. The effective dosage of the catalysts was found to be 0.04–0.06 g/L. The Ce@PyCOFs showed better photocatalytic degradation efficiency than PyCOFs. Further, PyCOFs and Ce@PyCOFs showed non-linear electrical susceptibility with the involvement of rotational diffusion anisotropy (ξ). The PyCOFs and Ce@PyCOFs showed dielectric loss (tan <em>δ</em>) at higher applied frequency. The real (Z′) and imaginary parts (Z″) of the impedance decrease monotonically with an increase in applied frequency and become linear. Cole-Cole studies for PyCOFs showed Nyquist behavior with non-linear electrical susceptibility and change in the phase angle (<em>θ</em>). The resistance (R) decreases with an increase in applied frequency. However, Ce@PyCOFs, showed linear variation in complex impedance spectra indicating no change in the phase angle (<em>θ</em>) and the voltage (V)/current (I) varies linearly with applied frequency. The synthesized Ce@PyCOFs can be utilized for photonics, optoelectronics and photocatalytic device constructions and related applications.</div></div>","PeriodicalId":16811,"journal":{"name":"Journal of Physics and Chemistry of Solids","volume":"199 ","pages":"Article 112548"},"PeriodicalIF":4.3,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143099856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}