Solid State Sciences最新文献

英文中文

Optical response characteristics & radiation shielding properties of Sm3+ ions activated tungsten alkali borate glasses for visible laser & radiation shielding applications 用于可见激光和辐射屏蔽应用的 Sm3+离子活化碱硼酸钨玻璃的光学响应特性和辐射屏蔽性能

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-03-04 DOI: 10.1016/j.solidstatesciences.2025.107888

G. Dedeepya , Sk Mahamuda , K. Swapna , M. Venkateswarlu , A.S. Rao

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 & 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.

{"title":"Optical response characteristics & radiation shielding properties of Sm3+ ions activated tungsten alkali borate glasses for visible laser & radiation shielding applications","authors":"G. Dedeepya , Sk Mahamuda , K. Swapna , M. Venkateswarlu , 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 Sm<sup>3+</sup> ion concentration. The JO parameters were found to be high (Ω<sub>2</sub> = 85.6 × 10<sup>−22</sup>, Ω<sub>4</sub> = 242 × 10<sup>−22</sup> & Ω<sub>6</sub> = 313 × 10<sup>−22</sup>) for TABSm1.0 glass. These parameters were then employed to assess the radiative properties of the significant fluorescent transitions <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>5/2</sub>, <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>7/2</sub> and <sup>4</sup>G<sub>5/2</sub> → <sup>6</sup>H<sub>9/2</sub> 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 Sm<sup>3+</sup> 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<sub>eff</sub>), Half Value Layer (HVL), Tenth Value Layer (TVL), Mean Free Path (MFP), Equivalent Atomic Number (Z<sub>eq</sub>), 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}

引用次数: 0

Electrocatalytic activity of Cu-Co prussian blue analogue and its calcined derivatives towards OER

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-03-04 DOI: 10.1016/j.solidstatesciences.2025.107887

Farnaz Kazemzadeh, Behzad Haghighi

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.

{"title":"Electrocatalytic activity of Cu-Co prussian blue analogue and its calcined derivatives towards OER","authors":"Farnaz Kazemzadeh, 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 η<sub>10</sub> (the required overpotential to achieve the anodic current density of 10 mA cm<sup>−2</sup>) 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}

引用次数: 0

Impact of concentration and excitation wavelength on fluorescence behaviour of CuInS2 QDs 浓度和激发波长对 CuInS2 QD 荧光行为的影响

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-03-03 DOI: 10.1016/j.solidstatesciences.2025.107886

Priya Chandra, K.S. Ojha

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.

引用次数: 0

Potential use of ZnO anchored boron industrial waste microparticles as a novel eco-friendly activator in cis-polybutadiene /natural rubber composites

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-03-03 DOI: 10.1016/j.solidstatesciences.2025.107884

Deniz Akin Sahbaz , Erol Goksu

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.

{"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 , 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/mm<sup>2</sup>), elongation at break (742.47 %), optimum cure time (12.26 min), and cure rate index (12.47 min<sup>−1</sup>) 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}

引用次数: 0

Corrigendum to “Optical and conduction mechanism study of lead-free CsMnCl3 perovskite” [Solid State Sci. 155 (2024) 107646]

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-03-01 DOI: 10.1016/j.solidstatesciences.2025.107837

Moufida Krimi , Mehdi Akermi , Rym Hassani , Abdallah Ben Rhaiem

引用次数: 0

Corrigendum to ‘Local structure of porous InSb films: From first to third-shell EXAFS investigation’ [Solid State Sci. 119, 106705, 2021]

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-03-01 DOI: 10.1016/j.solidstatesciences.2025.107877

Charles A. Bolzan , Bernt Johannessen , Zhibin Wu , Raquel Giulian

引用次数: 0

Pressure-temperature stability diagram of MgB2 – Consequences for sintering of dense MgB2 ceramics

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-02-26 DOI: 10.1016/j.solidstatesciences.2025.107879

Clotilde Lechevalier-Boissel , Fabian Delorme , Eugenie Cellier , Julie Rossit , Florence Moitrier , Yiteng Xing , Jacques Noudem , Sebastien Lemonnier

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.

{"title":"Pressure-temperature stability diagram of MgB2 – Consequences for sintering of dense MgB2 ceramics","authors":"Clotilde Lechevalier-Boissel , Fabian Delorme , Eugenie Cellier , Julie Rossit , Florence Moitrier , Yiteng Xing , Jacques Noudem , Sebastien Lemonnier","doi":"10.1016/j.solidstatesciences.2025.107879","DOIUrl":"10.1016/j.solidstatesciences.2025.107879","url":null,"abstract":"<div><div>The MgB<sub>2</sub> 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 MgB<sub>4</sub>, MgB<sub>7</sub> or MgO. Thermodynamic studies seem to indicate that high pressures should increase the temperature stability domain of MgB<sub>2</sub>. Therefore, in order to achieve high density pure MgB<sub>2</sub> 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 MgB<sub>4</sub>. However, they also show that increasing the dwell time to achieve higher density leads to the reappearance of the MgB<sub>4</sub> compound. Therefore, high pressures rather reduce the kinetic of MgB<sub>2</sub> decomposition than increasing the MgB<sub>2</sub> 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 MgB<sub>2</sub> ceramic and to determine the influence of the MgB<sub>4</sub> 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}

引用次数: 0

Sustainable microwave-assisted crafting of CoZrO3@Graphene nanoplatelets nanocomposites for advanced asymmetric supercapacitors

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-02-25 DOI: 10.1016/j.solidstatesciences.2025.107881

J. John Benitto, J. Judith Vijaya

In response to the growing energy crisis driven by rapid urbanization and population growth, the research investigates the development of high-performance supercapacitor electrode materials. Specifically, CoZrO₃ and its composite with graphene nanoplatelets (GNP) were synthesized using a microwave-assisted combustion method. Structural and morphological characteristics were confirmed by X-ray Diffraction (XRD), Fourier Transform Raman, UV–vis diffuse reflectance spectroscopy (UV-DRS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N₂ adsorption/desorption studies. The prepared CoZrO₃@GNP nanocomposites exhibited exemplary electrochemical performance by achieving a maximum specific capacitance of 1003 F g⁻¹ at a current density of 2 A g⁻¹. An asymmetric supercapacitor device fabricated with this nanocomposite demonstrated a specific capacitance of 129.05 F g⁻¹ at 2 A g⁻¹, maintaining 89 % of its initial capacitance after 2000 cycles and delivering an energy density of 165.18 W h kg⁻¹ and maximum power density of 9.14 W kg⁻¹. The significant improvements are attributed to the synergistic effects of the GNP integration, highlighting the potential of CoZrO₃@GNP as a viable electrode material for advanced energy storage applications.

{"title":"Sustainable microwave-assisted crafting of CoZrO3@Graphene nanoplatelets nanocomposites for advanced asymmetric supercapacitors","authors":"J. John Benitto, J. Judith Vijaya","doi":"10.1016/j.solidstatesciences.2025.107881","DOIUrl":"10.1016/j.solidstatesciences.2025.107881","url":null,"abstract":"<div><div>In response to the growing energy crisis driven by rapid urbanization and population growth, the research investigates the development of high-performance supercapacitor electrode materials. Specifically, CoZrO<sub>3</sub> and its composite with graphene nanoplatelets (GNP) were synthesized using a microwave-assisted combustion method. Structural and morphological characteristics were confirmed by X-ray Diffraction (XRD), Fourier Transform Raman, UV–vis diffuse reflectance spectroscopy (UV-DRS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N<sub>2</sub> adsorption/desorption studies. The prepared CoZrO<sub>3</sub>@GNP nanocomposites exhibited exemplary electrochemical performance by achieving a maximum specific capacitance of 1003 F g<sup>−1</sup> at a current density of 2 A g<sup>−1</sup>. An asymmetric supercapacitor device fabricated with this nanocomposite demonstrated a specific capacitance of 129.05 F g<sup>−1</sup> at 2 A g<sup>−1</sup>, maintaining 89 % of its initial capacitance after 2000 cycles and delivering an energy density of 165.18 W h kg<sup>−1</sup> and maximum power density of 9.14 W kg<sup>−1</sup>. The significant improvements are attributed to the synergistic effects of the GNP integration, highlighting the potential of CoZrO<sub>3</sub>@GNP as a viable electrode material for advanced energy storage applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"162 ","pages":"Article 107881"},"PeriodicalIF":3.4,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512437","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}

引用次数: 0

Investigation of energy transfer mechanism in Gd3+ to Sm3+ and Eu3+ in borate glasses for the application of solid-state lighting devices

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-02-25 DOI: 10.1016/j.solidstatesciences.2025.107878

F. Zaman , J. Abbas , I. Ullah , Arshad Khan , N. Us Saqib , S. Mukamil , Hasan B. Albargi , G. Rooh , N. Srisittipokakun , W. Rachniyom , N. Intachai , S. Kothan , J. Kaewkhao

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.

{"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 , J. Abbas , I. Ullah , Arshad Khan , N. Us Saqib , S. Mukamil , Hasan B. Albargi , G. Rooh , N. Srisittipokakun , W. Rachniyom , N. Intachai , S. Kothan , 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 Gd<sup>3+</sup> to Eu<sup>3+</sup> and Sm<sup>3+</sup> 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 Sm<sup>3+</sup>, Eu<sup>3+</sup>, and Gd<sup>3+</sup> 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 Gd<sup>3+</sup> to Sm<sup>3+</sup> and Eu<sup>3+</sup> 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}

引用次数: 0

Evaluation of ultrasonic energy and temperature on the structural, morphological, and magnetic properties of Fe3O4 nanoparticles

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2025-02-25 DOI: 10.1016/j.solidstatesciences.2025.107880

M.C. Vega Sosa , I.M. Saavedra Gaona , C.A. Parra Vargas , R.J. Rincón , D. Llamosa Pérez

Iron oxide nanoparticles currently have multiple technological, medical, and environmental applications, making an efficient and sustainable production process necessary. This work systematically investigates the ultrasonic energy and reaction temperature in synthesizing Fe₃O₄ nanoparticles on their structural, morphological, and magnetic properties. The properties were characterized using X-ray diffraction (XRD), Fourier transform (FTIR), X-ray photoemission spectroscopy (XPS), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and vibrating sample magnetometry (VSM). The results show that the synthesis process parameters are crucial in forming Fe₃O₄ nanoparticles with superparamagnetic properties. It was found that higher temperatures or ultrasonic energy led to an increase in grain size, ranging from 8 to 20 nm. Consequently, the variation of these parameters significantly impacts the magnetic properties of the nanoparticles. For instance, small coercive fields (0.51 Oe) were observed in samples with a grain size of 8.40 (2) nm. These relevant findings could play a key role in developing future industrial applications.

氧化铁纳米粒子目前在技术、医疗和环境方面有多种应用，因此需要一种高效、可持续的生产工艺。这项工作系统地研究了合成 Fe3O4 纳米粒子时超声波能量和反应温度对其结构、形态和磁性能的影响。利用 X 射线衍射 (XRD)、傅立叶变换 (FTIR)、X 射线光发射光谱 (XPS)、透射电子显微镜 (TEM)、选区电子衍射 (SAED) 和振动样品磁力计 (VSM) 对这些特性进行了表征。结果表明，合成工艺参数对形成具有超顺磁性能的 Fe3O4 纳米粒子至关重要。研究发现，温度或超声波能量越高，晶粒尺寸越大，从 8 纳米到 20 纳米不等。因此，这些参数的变化对纳米粒子的磁性能有很大影响。例如，在晶粒尺寸为 8.40 (2) nm 的样品中观察到了较小的矫顽力场（0.51 Oe）。这些相关发现可在开发未来的工业应用中发挥关键作用。

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