Yuelong Zhang , Jingcheng Yu , Na Liu , Shuai Tong , Hong Chang
{"title":"Strong microwave absorption and plausible Fe3+ spin states in SrFe12-2xCuxRuxO19","authors":"Yuelong Zhang , Jingcheng Yu , Na Liu , Shuai Tong , Hong Chang","doi":"10.1016/j.ssc.2026.116338","DOIUrl":"10.1016/j.ssc.2026.116338","url":null,"abstract":"<div><div>The volatile Ru<sup>3+</sup>(/Ru<sup>4+</sup>) doping introduces the valence unbalance in SrFe<sub>12-2<em>x</em></sub>Cu<sub><em>x</em></sub>Ru<sub><em>x</em></sub>O<sub>19</sub>. As a result, some dangling bonds appear, and the symmetry around Fe<sup>3+</sup> decreases. In the UV-vis spectra, a transition is observed with the energy bandwidth of 0.64 eV. Due to the coexistence of Fe<sup>3+</sup> (HS) and Fe<sup>3+</sup> (IS), two magnetic resonance peaks exist in the compounds, and they effectively deepened and broadened the microwave absorption. The <em>x</em> = 0.6 sample has the minimum <em>RL</em> as low as −59 dB, which is equal to 99.9999% microwave being absorbed. It is due to the combined effect of the relatively high attenuation factor, good impedance matching, and the quarter wavelength criterion. In the <em>x</em> = 0.4 sample, at a single layer thickness of 2.2 mm, the effective microwave absorption (<span><math><mrow><mi>R</mi><mi>L</mi><mo>≤</mo><mo>−</mo><mn>10</mn><mtext>dB</mtext></mrow></math></span>) has a very broad bandwidth of 9.07 GHz. Below 4 mm, the <em>x</em> = 1.0 sample has a broad multi layer absorption bandwidth of 13.02 GHz. It fully covers the C-, X- and Ku-bands. All these properties make SrFe<sub>12-2<em>x</em></sub>Cu<sub><em>x</em></sub>Ru<sub><em>x</em></sub>O<sub>19</sub> a very promising microwave absorbing material.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116338"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tuning the electronic and optical properties of ZnO through sulfur doping: A DFT study","authors":"G.B. Eshonqulov , D.G. Berdiyorova , D.K. Shodieva , M.U. Niyozaliev , G.R. Berdiyorov","doi":"10.1016/j.ssc.2026.116341","DOIUrl":"10.1016/j.ssc.2026.116341","url":null,"abstract":"<div><div>This work presents a first-principles investigation of the structural, electronic, and optical properties of sulfur-doped ZnO<sub>1-x</sub>S<sub>x</sub> alloys using density functional theory. Starting from wurtzite ZnO, we systematically substituted oxygen with sulfur over the full composition range, generating relaxed structures that exhibit gradual lattice expansion consistent with the larger ionic radius of S<sup>2−</sup>. The electronic band gap displays a clear non-monotonic evolution as a function of sulfur content. The optical properties are systematically analyzed across the entire sulfur composition range (0 ≤ x ≤ 1), providing a comprehensive picture of composition-dependent dielectric response and light absorption in ZnO<sub>1-x</sub>S<sub>x</sub> alloys. Simulation results show that sulfur incorporation dramatically enhances the dielectric response and optical absorption in the visible range, with the strongest enhancement occurring at intermediate S concentrations (around 37.5–50%). At higher S contents, the absorption edge shifts back toward the ultraviolet, following the widening of the band gap. Together, these results highlight sulfur substitution as an effective strategy for engineering the band structure and optical response of ZnO, enabling the design of ZnO<sub>1-x</sub>S<sub>x</sub> alloys with tunable properties for optoelectronic, photovoltaic, and photocatalytic applications.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116341"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synthesis and bifunctional electrochemical performance of Y2O3/MWCNT nanocomposites for supercapacitor and water splitting applications","authors":"Bonisha Britto, Rajakumari Rajaram","doi":"10.1016/j.ssc.2026.116332","DOIUrl":"10.1016/j.ssc.2026.116332","url":null,"abstract":"<div><div>Alternative, sustainable materials are urgently needed for energy conversion and storage amid escalating global energy demands. Herein, hydrothermal Y<sub>2</sub>O<sub>3</sub>/MWCNT nanocomposites (optimal Y<sub>2</sub>O<sub>3</sub>/MWCNTs-2) pioneer defect-engineered rare-earth synergy for supercapacitors and water splitting, achieving record-low R<sub>CT</sub> = 38 Ω, specific capacitance of 464 F g<sup>−1</sup>, and 97% retention, distinguishing from TMO/CNT via exceptional stability and bifunctionality. The crystallinity and phase purity of the produced materials were validated by structural investigation employing XRD. FTIR spectroscopy confirmed the effective production of the composite by revealing separate vibrational bands that corresponded to both carbon and Y<sub>2</sub>O<sub>3</sub>. The structural integrity of the nanocomposite was confirmed by HR-TEM analysis, which offered comprehensive insights into tube length, lattice fringes, and SAED patterns. FESEM pictures showed the preservation of the tubular shape.</div><div>Electrochemical tests were carried out to assess the materials' capacitive and catalytic capabilities. Electrochemical tests revealed pseudocapacitive CV behavior. Y<sub>3</sub>O<sub>3</sub>/MWCNTs −2 demonstrated exceptional bifunctional activity in electrocatalytic evaluations, exhibiting a low overpotential of 70 mV for the oxygen evolution reaction (OER) and 437 mV for the hydrogen evolution reaction (HER). These findings show that the material has two uses, which makes it a promising option for next-generation devices that produce hydrogen and store energy.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116332"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Piotr Urbanowicz , Tadeusz Groń , Grażyna Dąbrowska , Elżbieta Filipek , Bogdan Sawicki , Marcin Fijałkowski
{"title":"Thermoelectric power of ceramic CuTa2O6:Sb semiconductors","authors":"Piotr Urbanowicz , Tadeusz Groń , Grażyna Dąbrowska , Elżbieta Filipek , Bogdan Sawicki , Marcin Fijałkowski","doi":"10.1016/j.ssc.2026.116335","DOIUrl":"10.1016/j.ssc.2026.116335","url":null,"abstract":"<div><div>A solid insulating ceramic solution with the general formula CuTa<sub>2-x</sub>Sb<sub>x</sub>O<sub>6</sub> and limited homogeneity range (0 < x ≤ 0.5), obtained via a high-temperature solid-state reaction was subjected to dielectric and electrical studies as well as thermoelectric characterization. For this purpose, measurements of the dielectric constant, electrical conductivity and thermopower were carried out. Based on the fitting of the experimental thermopower data using the semi-empirical model proposed by Matoba, Anzai, and Fujimori, the components of the thermopower were determined: diffusion, phonon drag and variable-range hopping. The Fermi energy determined from the diffusive component enabled the estimation of the position of the n-type doping levels within the forbidden gap, located below the bottom of the conduction band. Their presence is supported by high values of the variable-range hopping contribution.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116335"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Salman Ahmed , Ghalib Ul Islam , Mohammad Nasir , Abdul Majid , Manan Ali , Masood Yousaf , Muhammad Farhat Ullah , Amina Salhi , Ilkhom Khaydarov , M. Ijaz Khan
{"title":"Investigation of structural, mechanical, optoelectronic and thermoelectric features of Rb2Na1-xBxScI6 (B = Cu and Ag; x = 0, 0.25), for renewable energy applications","authors":"Salman Ahmed , Ghalib Ul Islam , Mohammad Nasir , Abdul Majid , Manan Ali , Masood Yousaf , Muhammad Farhat Ullah , Amina Salhi , Ilkhom Khaydarov , M. Ijaz Khan","doi":"10.1016/j.ssc.2026.116340","DOIUrl":"10.1016/j.ssc.2026.116340","url":null,"abstract":"<div><div>Lead-free halide double perovskites have been proven as promising materials for sustainable optoelectronic and energy harvesting applications. In this work, density functional theory (DFT) calculations with the aid of CASTEP code was used to study the effect of partial B-site cation replacement, on the properties of Rb<sub>2</sub>NaScI<sub>6</sub>. We replaced 1 out of 4 Na atoms (x = 0.25) with Cu and Ag, yielding Rb<sub>2</sub>Na<sub>0.75</sub>Cu<sub>0.25</sub>ScI<sub>6</sub> and Rb<sub>2</sub>Na<sub>0.75</sub>Ag<sub>0.25</sub>ScI<sub>6</sub>. The PBE-GGA functional was used to treat the exchange-correlation potential with Norm conserving Pseudo-potential. Structural optimization showed stable cubic phases for all three compounds. Elastic property calculations confirmed mechanical stability and revealed a slight reduction in stiffness upon doping. The calculated electronic band structure revealed a significant decrease in the band gap values from 2.42 eV for the pristine compound to 1.76 eV for the Ag-doped and 1.53 eV for the Cu-doped variant, that indicates, the materials are now more promising candidates for real world solar cell applications as they can now harvest broader range of photons from the sun. Furthermore, the doped systems showed enhanced optical properties including conductivity and absorption coefficients in the low-energy region. Calculations of the thermoelectric properties through Boltzmann transport theory predicts a significant improvement in the figure of merit (ZT), from 0.726 (pristine) to 0.747 (Ag-doped) and 0.813 (Cu-doped). The calculated results with partial substitution of Cu and Ag at B-site effectively demonstrates the enhanced optoelectronic and transport properties of Rb<sub>2</sub>NaScI<sub>6</sub>, Proving these materials as promising candidates for high-efficiency, non-toxic photovoltaic cells and mid-temperature thermoelectric generators.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116340"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microstructurally-based multi-phase finite element analysis of bending in Advanced High Strength Steels (AHSS)","authors":"Mahmoud Diab , David S. Wilkinson , Jidong Kang","doi":"10.1016/j.ssc.2026.116326","DOIUrl":"10.1016/j.ssc.2026.116326","url":null,"abstract":"<div><div>Understanding the bendability of Advanced High Strength Steels (AHSS) is critical for both the forming of components and improving crash worthiness. This paper addresses this for a Dual-Phase DP-980 steel. In tandem with experimental work presented elsewhere we have developed a Finite Element Analysis (FEA) to model both the 90° VDA V-Bend test and a simple 3-point bend test. The FEA utilizes HyperWorks and LS-DYNA as the simulation platforms. Multi-scale, multi-phase modeling is implemented, incorporating real microstructures to capture the stress and strain evolution of DP-980 steel throughout the respective bending procedures. In this framework, macro-scale models inform and drive micro-scale models, ensuring realistic strain localization. We have demonstrated that the strain histories for these two modes of bending are quite different, although the final strains are similar. We have used the model to demonstrate how altering the microstructure through modification of the Martensite Volume Fraction and the Carbon content, affects strain localization within both Ferrite and Martensite. Furthermore, varying the relative strengths of each microstructural phase has a large effect on phase strain partitioning which is known to be important to damage tolerance. The results help to establish a robust methodology for multi-scale bending simulations of multi-phase materials.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116326"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Orbital ordering in the metal-insulator transition of the P-62m phase of CrO2","authors":"Sarajit Biswas","doi":"10.1016/j.ssc.2026.116356","DOIUrl":"10.1016/j.ssc.2026.116356","url":null,"abstract":"<div><div>Using first-principles electronic structure computations, the structural, electronic and magnetic properties of the P-62m phase of CrO<sub>2</sub> (P-62m CrO<sub>2</sub>) at 286 GPa are comprehensively investigated for the first time. It is observed that four Cr atoms form a Cr-Cr quadrilateral four-chain column (QFCC) in P-62m CrO<sub>2</sub>. The variations in the Cr-O bond lengths and <O-Cr-O bond angles in the CrO<sub>7</sub> polyhedra, along with the Cr-Cr distances in the QFCCs, lead to structural distortion in P-62m CrO<sub>2</sub>. More fascinatingly, the formation of Cr-dimers in the Cr-double chains (in the <em>ac</em> plane and extending along the <em>b</em>-direction) causes Peierls instability, which significantly reduces the crystal symmetry. This material turns out to be a nonmagnetic metal. The nonmagnetism of P-62m CrO<sub>2</sub> is attributed to the equal distribution of electrons in the Cr-d<sub>3z</sub><sup>2</sup><sub>- r</sub><sup>2</sup>, d<sub>xz</sub>, d<sub>yz</sub>, d<sub>x</sub><sup>2</sup><sub>- y</sub><sup>2</sup> and d<sub>xy</sub> orbitals for both majority and minority spin channels. The splitting of the Cr-d<sub>3z</sub><sup>2</sup><sub>- r</sub><sup>2</sup>, d<sub>x</sub><sup>2</sup><sub>- y</sub><sup>2</sup> and d<sub>xy</sub> orbitals into occupied and unoccupied components results in partial orbital ordering (OO) in P-62m CrO<sub>2</sub>. The partial filling of the Cr-d<sub>xz</sub> and d<sub>yz</sub> orbitals is accounted for the metallic behaviour of the present material. It undergoes metal-insulator transition (MIT) and displays ferrimagnetism upon applying U = 3.0 eV. The introduction of U yields correlations among the Cr-3d electrons, which eventually breaks the Cr-d<sub>xz</sub> and d<sub>yz</sub> orbitals into occupied and unoccupied components, implying complete OO among all five Cr-3d orbitals, resulting in the observed MIT in P-62m CrO<sub>2</sub>. In both spin channels, p-d hybridization occurs between the occupied components of Cr-d<sub>3z</sub><sup>2</sup><sub>- r</sub><sup>2</sup>, d<sub>xz</sub>, d<sub>yz</sub>, d<sub>x</sub><sup>2</sup><sub>- y</sub><sup>2</sup>, d<sub>xy</sub> orbitals and O-2p orbitals. The uneven distribution of Cr-3d electrons in the two spin channels promotes ferrimagnetism in insulating P-62m CrO<sub>2</sub>.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116356"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First-principles investigation of novel gold-based halide perovskites SrAuX3 (X = Cl, Br) for optoelectronic and thermoelectric applications","authors":"Pooja Sharma , Javaid khan , Aparna Dixit , Ramesh Sharma","doi":"10.1016/j.ssc.2026.116353","DOIUrl":"10.1016/j.ssc.2026.116353","url":null,"abstract":"<div><div>Driven by the search for non-toxic alternatives to lead-based perovskites, this work presents a comprehensive first-principles investigation of novel gold-based halide perovskites, SrAuX<sub>3</sub> (X = Cl, Br). Thermodynamic stability is confirmed through cohesive and formation energy calculations, with both compounds crystallizing in a stable cubic structure. Phonon dispersion calculations reveal no imaginary frequencies, confirming dynamical stability. Elastic constants satisfy Born stability criteria, and the calculated mechanical parameters indicate complementary behavior: SrAuCl<sub>3</sub> exhibits high ductility (Pugh's ratio = 9.91), while SrAuBr<sub>3</sub> shows greater shear rigidity (Shear Modulus = 12.86 GPa). Electronic property analysis reveals semiconducting behavior, with band gaps tuned by the halide identity: SrAuCl<sub>3</sub> exhibits wider gaps (1.88-1.95 eV) ideal for visible-light absorption in photovoltaics, while SrAuBr<sub>3</sub> has narrower gaps (0.70-1.44 eV) suitable for infrared optoelectronics. The materials demonstrate exceptional optical performance, including strong absorption from infrared to ultraviolet and high optical conductivity. Furthermore, they exhibit promising thermoelectric properties, with a figure of merit (ZT) reaching ∼0.71 at high temperatures. This combination of compelling optoelectronic characteristics and efficient thermal energy conversion underscores the significant potential of SrAuX<sub>3</sub> perovskites for applications in solar cells, light-emitting diodes, and high-temperature thermoelectric generators.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116353"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Siyao Li , Xiaoyu Dong , Jian Yang , Yangyang Zhao , Wanqin Yang , Hancheng Zhu , Shengnan Li , Changshan Xu , Yuxue Liu
{"title":"Cr3+-activated Mg3Y2Ge3O12 near-infrared phosphor for broadband-emitting pc-LED light source targeting spectroscopic applications","authors":"Siyao Li , Xiaoyu Dong , Jian Yang , Yangyang Zhao , Wanqin Yang , Hancheng Zhu , Shengnan Li , Changshan Xu , Yuxue Liu","doi":"10.1016/j.ssc.2026.116347","DOIUrl":"10.1016/j.ssc.2026.116347","url":null,"abstract":"<div><div>The garnet-structured Mg<sub>3</sub>Y<sub>2</sub>Ge<sub>3</sub>O<sub>12</sub> doped with Cr<sup>3+</sup> (MYG:Cr<sup>3+</sup>) near-infrared phosphors were synthesized via a sol-gel method. Their particle sizes of all samples were below 300 nm. Cr<sup>3+</sup> ions preferentially occupy the octahedral sites within garnet-structure, the corresponding formation energy is −12.6 eV. Upon 635 nm excitation, Cr<sup>3+</sup> ions in MYG:Cr<sup>3+</sup> exhibit a broad emission band within 650 - 1100 nm, originating from their <sup>2</sup>E and <sup>4</sup>T<sub>2</sub> → <sup>4</sup>A<sub>2</sub> transitions, which is indicative of Cr<sup>3+</sup> residing in a medium-strength crystal field environment. The corresponding crystal field intensity is calculated to be approximately 2.23. Furthermore, the emission band of MYG:Cr<sup>3+</sup> phosphors can be modulated by controlling the temperature. Specifically, the emission originating from the <sup>2</sup>E → <sup>4</sup>A<sub>2</sub> transitions of Cr<sup>3+</sup> gradually decreases with increasing sample temperature, which is caused by the reduction in local crystal field intensity. MYG:Cr<sup>3+</sup> phosphor exhibits outstanding thermal stability, maintaining 59% of its initial emission intensity at 418 K relative to that at 298 K, with a thermal activation energy (ΔE) of 0.207 eV. Finally, a pc-LED with broadband NIR emitting was fabricated using MYG:Cr<sup>3+</sup> phosphors. More importantly, to further explore the spectroscopic applications of the NIR pc-LED light source, an optical meter for measuring sugar concentration in juice was successfully designed based on the variation of the transmission spectra of NIR pc-LED light with respect to sugar concentration in juice solutions.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116347"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Muni krishnaiah , A. Kalpana , P. Vijaya Lakshmi , Naresh Babu Gatchakayala , ChoppaSyam Kumar , M. Gnana Kiran , Rajesh V , Pathem Uma Chaithanya , KodandaRamarao Chebattina
{"title":"Eu3+-substituted Bi2-xEuxWO6 (x = 0.00–0.20)nanoparticles structural distortion, enhanced photoluminescence, and improved photocatalytic activity via Sol–Gel synthesis","authors":"A. Muni krishnaiah , A. Kalpana , P. Vijaya Lakshmi , Naresh Babu Gatchakayala , ChoppaSyam Kumar , M. Gnana Kiran , Rajesh V , Pathem Uma Chaithanya , KodandaRamarao Chebattina","doi":"10.1016/j.ssc.2026.116354","DOIUrl":"10.1016/j.ssc.2026.116354","url":null,"abstract":"<div><div>Eu-substituted Bi<sub>2-<em>x</em></sub>Eu<sub><em>x</em></sub>WO<sub>6</sub> (<em>x</em> = 0.00-0.20) nanoparticles were developed via a sol-gel method to enhance the photocatalytic and optical performance of Bi<sub>2</sub>WO<sub>6</sub>. This work aims to investigate how Eu<sup>3+</sup> substitution at Bi<sup>3+</sup> sites influences the structural and functional properties of the material. Key findings demonstrate that Eu incorporation leads to controlled lattice distortion, increased surface area, band gap narrowing, and improved red photoluminescence due to intra-4f transitions. Most notably, the Eu-substituted sample at <em>x</em> = 0.10 exhibited a ∼79% Rhodamine B degradation efficiency under visible light, attributed to enhanced charge separation and light absorption. These results highlight the potential of Eu substitution as a viable strategy to tailor Bi<sub>2</sub>WO<sub>6</sub> for photocatalytic and optoelectronic applications.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"410 ","pages":"Article 116354"},"PeriodicalIF":2.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146186347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}