Solid State Sciences最新文献

{"title":"G-C3N4-based multi-metal oxide nanocomposites: A new frontier in catalytic performance","authors":"Tayaba Tahseen ,&nbsp;Nosheen Farooq ,&nbsp;Wardah Iman ,&nbsp;Ayesha Hareem ,&nbsp;Ravia Irshad ,&nbsp;Talib K. Ibrahim ,&nbsp;Aboud Ahmed Awadh Bahajjaj ,&nbsp;Rajesh Kumar Manavalan ,&nbsp;Shahid Hussain","doi":"10.1016/j.solidstatesciences.2025.107890","DOIUrl":"10.1016/j.solidstatesciences.2025.107890","url":null,"abstract":"<div><div>Pollution affects land, air, and water, posing serious threats to humanity and other living things. Planning and treating polluted water are essential to safeguarding future generations since water pollution is especially harmful. Current research focuses on the vitiation of organic dyes extracted from industry and drained from water reservoirs. In this work, g-C₃N₄/Fe₂O₃/NiO/Dy₂O₃ and g-C₃N₄/CeO₂/BaO/Al₂O₃ nanocomposites are synthesized for photocatalysis application. Co-precipitation and ultra-sonication were the synthetic techniques utilized to prepare the g-C₃N₄/Fe₂O₃/NiO/Dy₂O₃ and g-C₃N₄/CeO₂/BaO/Al₂O₃ nanocomposites. The dyes Rhodamine B (RhB) and Phenol Red (PR) were selected to investigate the nanomaterial's degradation efficiency. The g-C₃N₄/Fe₂O₃/NiO/Dy₂O₃ nanocomposite demonstrated the highest efficiency, 86.37 % degradation RhB and 78 % phenol red, respectively, which showing that it is a strong contender for the treatment of contaminated water. Scavengers' tests were also conducted to establish the primary agent responsible for dye degradation. The results clearly show that hydroxyl radicals are responsible behind the degradation of these organic colors. A unique paradigm of utilizing distinct metal combinations to highlight the practical relevance in the realm of catalytic performances.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107890"},"PeriodicalIF":3.4,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the luminescence and photometric behavior of green emitting NUV excited Er3+ doped Ca9Y(PO4)7 nanophosphor: A promising material for solid-state illumination applications","authors":"Pooja Chhillar,&nbsp;Priti Boora Doon","doi":"10.1016/j.solidstatesciences.2025.107885","DOIUrl":"10.1016/j.solidstatesciences.2025.107885","url":null,"abstract":"<div><div>The unparalleled ability of nanosized rare-earth activated phosphors stimulated by near ultraviolet (nUV) light to provide efficient visible emission has garnered huge interest as excellent sources for next-generation solid-state illumination devices. Herein, we have proposed bright green emitting Er³⁺ doped Ca₉Y(PO₄)₇ nanomaterials for application prospects in optoelectronic technology owing to its magnificent down-conversion luminescence. The phase purity and structure, surface morphology, photophysical features (e.g., excitation and emission spectra, concentration quenching, decay curves, optical energy band gap etc.) of Ca₉Y(PO₄)₇: Er³⁺ nanophosphors were investigated systematically. Phase purity and space group (trigonal with <em>R3c(161</em>)) of synthesized nanophosphors Ca₉Y(PO₄)₇: Er³⁺ were confirmed by high quality powder X-ray diffraction data. The scanning electron microscope (SEM) and high-resolution transmission electron microscope (HRTEM) images have been captured to examine surface characteristics and crystallite dimensions of Ca₉Y(PO₄)₇: Er³⁺ nanoparticles. Constituent elements of phosphors were determined by EDAX spectroscopy to depict high purity. Ca₉Y(PO₄)₇: Er³⁺ nanophosphors perform bright green emission under NUV excitation of 381 nm. The greenish light emitted at 564 nm is attributed to the transition ⁴S_3/2 → ⁴I_15/2 of Er³⁺ ions. The optimal activator concentration is 10 mol %, beyond which concentration quenching attributed to electric multipolar interactions was observed as studied via Dexter's and Van-Uitert's theoretical model. The conducting performance of the Ca₉Y(PO₄)₇: Er³⁺ nanophosphors is authenticated by their optical energy gap calculation using Kubleka-Munk and Tauc's hypothesis which falls in wide band-gap semiconductor regime. Decay curve and photoluminescent lifespan analysis using Auzel's model established high quantum efficiency of synthesized nanophosphors. The photometric features like CIE color coordinates, CCT suggested the exceptional potential of Ca₉Y(PO₄)₇: Er³⁺ nanophosphors for use as a bright green emitting segment in NUV based cool pc-WLEDs. Such NPs have interesting applications in emerging optoelectronic devices, hence rendering them of profound utility in the near future as promising contenders for near-ultraviolet (NUV) chip-based WLEDs and solid-state lighting surpassing the commercially available traditional light sources.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107885"},"PeriodicalIF":3.4,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical response characteristics & radiation shielding properties of Sm3+ ions activated tungsten alkali borate glasses for visible laser & radiation shielding applications","authors":"G. Dedeepya ,&nbsp;Sk Mahamuda ,&nbsp;K. Swapna ,&nbsp;M. Venkateswarlu ,&nbsp;A.S. Rao","doi":"10.1016/j.solidstatesciences.2025.107888","DOIUrl":"10.1016/j.solidstatesciences.2025.107888","url":null,"abstract":"<div><div>Trivalent samarium oxide doped Tungsten Alkali Borate (TAB) glasses were synthesized by melt-quenching technique and their structural and luminescence properties were studied. The amorphous nature of prepared TAB glass was confirmed by XRD. The presence of various borate functional groups was identified from Raman Spectra. The optical band gap energies evaluated from absorption spectra were found to be 2.24, 2.25, 2.28, 2.30, 2.34 and 2.36 eV increased with the increase of Sm³⁺ ion concentration. The JO parameters were found to be high (Ω₂ = 85.6 × 10⁻²², Ω₄ = 242 × 10⁻²² &amp; Ω₆ = 313 × 10⁻²²) for TABSm1.0 glass. These parameters were then employed to assess the radiative properties of the significant fluorescent transitions ⁴G_5/2 → ⁶H_5/2, ⁴G_5/2 → ⁶H_7/2 and ⁴G_5/2 → ⁶H_9/2 of TABSm glasses. From the PL decay spectra experimental lifetimes calculated and found to be 1224, 1198, 1137, 928, 688 and 596 μs decreased due to energy transfer between neighbouring Sm³⁺ ions. Highest quantum efficiency about 92% observed for TABSm1.0 glass compared to other TABSm glasses. The CIE colour chromaticity coordinates obtained for TABSm1.0 glass - (0.58, 0.41) also confirmed the reddish-orange emission. Many shielding characteristics like “Mass Attenuation coefficient (MAC), Effective Atomic Number (Z_eff), Half Value Layer (HVL), Tenth Value Layer (TVL), Mean Free Path (MFP), Equivalent Atomic Number (Z_eq), and Exposure build-up factor” were evaluated to understand the shielding capacity of present glasses. It was found that TABSm2.5 glass possesses higher values of the radiation shielding parameters which make the TABSm2.5 glass suitable for radiation shielding applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107888"},"PeriodicalIF":3.4,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrocatalytic activity of Cu-Co prussian blue analogue and its calcined derivatives towards OER","authors":"Farnaz Kazemzadeh,&nbsp;Behzad Haghighi","doi":"10.1016/j.solidstatesciences.2025.107887","DOIUrl":"10.1016/j.solidstatesciences.2025.107887","url":null,"abstract":"<div><div>Cu-Co prussian blue analogue (Cu-Co:PBA) was synthesized, mixed with graphite and calcined at 550 °C for 4 h to prepare calcined derivative of Cu-Co:PBA and graphite (G@Cu-Co:PBA©). Also, graphite, Cu-Co:PBA and dopant (sodium hypophosphite, thiourea, melamine and glucose for P, S, N and O doping, respectively) were mixed and calcined at a similar procedure to prepare X-doped calcined derivatives of G@Cu-Co:PBA (X-doped:G@Cu-Co:PBA© where X = P, S, N, and O). Then, different modified carbon paste electrodes (CPEs) were fabricated with the prepared materials and their electrocatalytic activities towards oxygen evolution reaction (OER) were investigated in an alkaline medium. The anodic polarization curves of the modified CPEs were recorded and their corresponding Tafel plots were obtained to calculate their onset potentials, Tafel slopes and η₁₀ (the required overpotential to achieve the anodic current density of 10 mA cm⁻²) as the electrocatalytic performance's criteria to evaluate the effect of calcination and doping on their electrocatalytic activity towards OER. The results revealed that the electrocatalytic performance of CPEs modified with X-doped:G@Cu-Co:PBA© (where X = P, S, N, and O) towards OER improved and their onset potentials and Tafel slopes decreased when CPEs were modified with X-doped in the order O-doped, N-doped, S-doped and P-doped.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107887"},"PeriodicalIF":3.4,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of concentration and excitation wavelength on fluorescence behaviour of CuInS2 QDs","authors":"Priya Chandra,&nbsp;K.S. Ojha","doi":"10.1016/j.solidstatesciences.2025.107886","DOIUrl":"10.1016/j.solidstatesciences.2025.107886","url":null,"abstract":"<div><div>Copper indium sulfide (CuInS₂) ternary quantum dots (QDs) offer tunable optical properties for displays, efficient solar cells, and advanced biomedical imaging. In this work, CuInS₂ QDs are prepared via a one-pot solvothermal route. The XRD has been performed for structural information, revealing the chalcopyrite structure of CuInS₂ with an average crystalline size of 8 nm, consistent with particle size calculated by the HRTEM image. The functional group analysis confirms the formation of CuInS₂ QDs. A blue shift in the energy gap of the prepared QDs has been found compared to the bulk. A narrow emission peak lying at 610 nm has been observed, showing Stoke's shift of 130 nm. The fluorescence behaviour of synthesized QDs with excitation wavelength and concentration has been investigated.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107886"},"PeriodicalIF":3.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential use of ZnO anchored boron industrial waste microparticles as a novel eco-friendly activator in cis-polybutadiene /natural rubber composites","authors":"Deniz Akin Sahbaz ,&nbsp;Erol Goksu","doi":"10.1016/j.solidstatesciences.2025.107884","DOIUrl":"10.1016/j.solidstatesciences.2025.107884","url":null,"abstract":"<div><div>Boron industrial waste (BIW) is a commercially valuable raw material in many industries. The evaluation of BIW is of increasing importance because of the rapid and growing consumption of raw material resources in the world. In this study, the BIW was modified by ZnO and then the ZnO anchored boron industrial waste (ZnO_BIW) was used as an activator in the vulcanization of cis-polybutadiene/natural rubber (cis-PB/NR/ZnO_BIW) composites to reduce the amount of carbon dioxide released into nature in the rubber industry, as well as decrease the vulcanization time, resulting in energy saving. The composites were prepared using different loads of ZnO_BIW (1, 3, 5, 7 and 10 phr), whose optimum proportions of commercial ZnO are used in the rubber industry. BIW, ZnO_BIW and cis-PB/NR/ZnO_BIW composites were characterized by SEM, EDX, FTIR, and XRD. The effect of the ZnO_BIW incorporation amount on the rheological, structural, and physico-mechanical properties of the cis-PB/NR/ZnO_BIW composites was assessed and the properties of the rubber composites were compared with each other. According to the results, 5 phr of ZnO_BIW has been given significantly better performance in tensile strength (15.97 N/mm²), elongation at break (742.47 %), optimum cure time (12.26 min), and cure rate index (12.47 min⁻¹) in comparison with the other phr ratios. It was found that the new activator could be used as a curing activator and simultaneously reinforcing filler. The utilization of ZnO_BIW as an activator to produce rubber products can greatly promote rubber technology to be cost-effective and has ecological potentials.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107884"},"PeriodicalIF":3.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Optical and conduction mechanism study of lead-free CsMnCl3 perovskite” [Solid State Sci. 155 (2024) 107646]","authors":"Moufida Krimi ,&nbsp;Mehdi Akermi ,&nbsp;Rym Hassani ,&nbsp;Abdallah Ben Rhaiem","doi":"10.1016/j.solidstatesciences.2025.107837","DOIUrl":"10.1016/j.solidstatesciences.2025.107837","url":null,"abstract":"","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"161 ","pages":"Article 107837"},"PeriodicalIF":3.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143520076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to ‘Local structure of porous InSb films: From first to third-shell EXAFS investigation’ [Solid State Sci. 119, 106705, 2021]","authors":"Charles A. Bolzan ,&nbsp;Bernt Johannessen ,&nbsp;Zhibin Wu ,&nbsp;Raquel Giulian","doi":"10.1016/j.solidstatesciences.2025.107877","DOIUrl":"10.1016/j.solidstatesciences.2025.107877","url":null,"abstract":"","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107877"},"PeriodicalIF":3.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pressure-temperature stability diagram of MgB2 – Consequences for sintering of dense MgB2 ceramics","authors":"Clotilde Lechevalier-Boissel ,&nbsp;Fabian Delorme ,&nbsp;Eugenie Cellier ,&nbsp;Julie Rossit ,&nbsp;Florence Moitrier ,&nbsp;Yiteng Xing ,&nbsp;Jacques Noudem ,&nbsp;Sebastien Lemonnier","doi":"10.1016/j.solidstatesciences.2025.107879","DOIUrl":"10.1016/j.solidstatesciences.2025.107879","url":null,"abstract":"<div><div>The MgB₂ compound has been largely studied due to its high superconducting properties. Such compound is well known to be difficult to densify. Utilization of Spark Plasma Sintering (SPS) to achieve high density ceramics has been proposed by many authors. However, the phase analysis of the samples from these papers systematically presents secondary phases such as MgB₄, MgB₇ or MgO. Thermodynamic studies seem to indicate that high pressures should increase the temperature stability domain of MgB₂. Therefore, in order to achieve high density pure MgB₂ ceramics, spark plasma sintering at low temperatures and high pressures has been investigated. Experiments demonstrated that increasing the pressure can reduce and even eliminate the presence of MgB₄. However, they also show that increasing the dwell time to achieve higher density leads to the reappearance of the MgB₄ compound. Therefore, high pressures rather reduce the kinetic of MgB₂ decomposition than increasing the MgB₂ temperature stability domain. The highest density achieved, without any composition change compared to the precursor powder, is 95 % relative density for a ceramic sintered at 700 °C under 1000 MPa during a dwell time of 2 h. These promising results make it possible to consider the investigation of the superconducting properties on a pure MgB₂ ceramic and to determine the influence of the MgB₄ phase on these properties.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107879"},"PeriodicalIF":3.4,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of energy transfer mechanism in Gd3+ to Sm3+ and Eu3+ in borate glasses for the application of solid-state lighting devices","authors":"F. Zaman ,&nbsp;J. Abbas ,&nbsp;I. Ullah ,&nbsp;Arshad Khan ,&nbsp;N. Us Saqib ,&nbsp;S. Mukamil ,&nbsp;Hasan B. Albargi ,&nbsp;G. Rooh ,&nbsp;N. Srisittipokakun ,&nbsp;W. Rachniyom ,&nbsp;N. Intachai ,&nbsp;S. Kothan ,&nbsp;J. Kaewkhao","doi":"10.1016/j.solidstatesciences.2025.107878","DOIUrl":"10.1016/j.solidstatesciences.2025.107878","url":null,"abstract":"<div><div>This investigation provides insightful information on the spectral characteristics and energy transfer mechanisms from Gd³⁺ to Eu³⁺ and Sm³⁺ ions in borate glasses. The main purpose of this study was to enhance the luminescent properties of the developed glasses, making them suitable candidates for solid-state lighting (SSL) applications. The study demonstrated efficient energy transfer mechanisms, contributing to superior emission characteristics. Borate glasses tri-doped with varying amounts of Sm³⁺, Eu³⁺, and Gd³⁺ were synthesized using the high-temperature melt-annealing technique. Spectroscopic techniques such as transmittance, photoluminescence (PL), and X-ray excited luminescence (XEL) were employed to investigate the electronic transitions and luminescence properties of the synthesized glasses. The optical bandgap and J-O intensity parameters were computed from the optical absorbance spectrum. Radiative characteristics were identified from the photoluminescence emission spectra. The chromaticity coordinates confirmed orange-red light emission, indicating the energy transfer phenomena from Gd³⁺ to Sm³⁺ and Eu³⁺ in the host glasses. The results confirmed that the energy transfer significantly enhanced the luminescence properties, particularly in the visible region, making the glass a promising candidate for solid-state lighting applications, including display technologies, phosphors, lighting equipment, and optoelectronics. Further investigations will be conducted in future studies to fully explore and maximize the application potential of these glass materials.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"163 ","pages":"Article 107878"},"PeriodicalIF":3.4,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}