Solid State Sciences最新文献_第3页

Structure and magnetodielectric properties of HDPE/GaFeO3 composites HDPE/GaFeO3复合材料的结构和磁介电性能

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-13 DOI: 10.1016/j.solidstatesciences.2025.108010

Zamzama Rahmany, C.K. Divya Krishnan, S. Savitha Pillai

{"title":"Structure and magnetodielectric properties of HDPE/GaFeO3 composites","authors":"Zamzama Rahmany, C.K. Divya Krishnan, S. Savitha Pillai","doi":"10.1016/j.solidstatesciences.2025.108010","DOIUrl":"10.1016/j.solidstatesciences.2025.108010","url":null,"abstract":"<div><div>We studied the structure and magnetoelectric properties of HDPE/GFO composites with different GFO weight percentages. The XRD pattern of HDPE was indexed with orthorhombic structure space group Pnam, and the XRD pattern of GFO matches the Trigonal structure space group <span><math><mrow><mi>R</mi><mover><mn>3</mn><mo>‾</mo></mover><mi>c</mi></mrow></math></span>. The XRD pattern of composites shows the presence of both phases. Raman and IR studies confirmed the presence of functional group absorption bands corresponding to HDPE and GFO in the composite system. Structural analysis confirms that nanoparticle agglomeration within the matrix is likely to occur at filler concentrations above 5 %. GFO nanoparticle incorporation is confirmed from fractured micrographs of SEM images. The field-dependant magnetization data show a clear hysteresis loop at room temperature, indicating weak ferrimagnetic properties for composite samples, the maximum magnetic moment observed for 5 % filler concentration. The frequency-dependent dielectric constant increases with an increase in filler content. Ferroelectric data confirms the room temperature ferroelectricity in the composite samples and polarization increases with filler loading. Magnetodielectric studies confirmed the presence of a coupling between the magnetic and dielectric properties of the composite.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"168 ","pages":"Article 108010"},"PeriodicalIF":3.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298137","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

Z-scheme CuO/NCN nanomaterials for rapid fluorescence detection and photocatalytic degradation of levofloxacin z型CuO/NCN纳米材料用于左氧氟沙星的快速荧光检测和光催化降解

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-13 DOI: 10.1016/j.solidstatesciences.2025.108005

Qi Guo , Xiaoling Liu , Meng Wen , Haijuan Zhan , Heping Li , Jing-xin Ma , Wanyi Liu

{"title":"Z-scheme CuO/NCN nanomaterials for rapid fluorescence detection and photocatalytic degradation of levofloxacin","authors":"Qi Guo , Xiaoling Liu , Meng Wen , Haijuan Zhan , Heping Li , Jing-xin Ma , Wanyi Liu","doi":"10.1016/j.solidstatesciences.2025.108005","DOIUrl":"10.1016/j.solidstatesciences.2025.108005","url":null,"abstract":"<div><div>Z-scheme CuO/NCN heterojunction nanomaterials have been successfully synthesised by loading copper oxide on g-C<sub>3</sub>N<sub>4</sub> modified with NCDs (NCN). The material detects and photocatalytically degrades levofloxacin (LOFL) in aqueous solution by fluorescence “turn on”. CuO/NCN has good sensing performance for LOFL in the range of 0–0.275 mM[R<sup>2</sup> = 0.9994, detection limit: 0.360 μM (0.143 ppm)]. Through comprehensive tests, it was verified that the fluorescence sensitisation mechanism can be attributed to the combination of IFE and photoinduced electron transfer. Meanwhile, Transfacial electron transport bridges (NCDs) establish double charge transfer pathways that simultaneously accelerate electron flow and Cu(II)/Cu(I) redox cycling in Z-scheme CuO/NCN heterojunctions, resulting in a synergistic photo-Fenton-like system. By constructing CuO/NCN nanomaterials, an integrated solution to treat LOFL contamination in water has been realised, equipped with detection and removal capabilities. This opens up a promising avenue to effectively, rapidly and economically address LOFL contamination in water.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"168 ","pages":"Article 108005"},"PeriodicalIF":3.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298136","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

Optimization of thermoelectric properties of n-type Mn- and Te-doped Mg3Sb2-xBix phases n型Mn和te掺杂Mg3Sb2-xBix相热电性能的优化

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-12 DOI: 10.1016/j.solidstatesciences.2025.108011

Trong Phan , Yu-Chih Tseng , Yurij Mozharivskyj

{"title":"Optimization of thermoelectric properties of n-type Mn- and Te-doped Mg3Sb2-xBix phases","authors":"Trong Phan , Yu-Chih Tseng , Yurij Mozharivskyj","doi":"10.1016/j.solidstatesciences.2025.108011","DOIUrl":"10.1016/j.solidstatesciences.2025.108011","url":null,"abstract":"<div><div>This study explores the effects of Mg and Bi amounts, ball milling duration, and sintering conditions on the purity and thermoelectric properties of the Mn- and Te-doped Mg<sub>3</sub>Sb<sub>2-<em>x</em></sub>Bi<sub><em>x</em></sub> phases (Mg<sub>2.97+<em>y</em></sub>Mn<sub>0.03</sub>Bi<sub><em>x</em></sub>Sb<sub>1.99-<em>x</em></sub>Te<sub>0.01</sub>). We found that excess Mg is necessary to achieve phase pure samples, but too much Mg forms impurities that decrease thermoelectric efficiency. Increasing Bi content leads to lower phase stability and decomposition. There is also an optimal ball milling time, beyond which decomposition of the material occurs. The highest figure of merit, zT, of 1.44 was achieved for the Mg<sub>3.27</sub>Mn<sub>0.03</sub>Bi<sub>1.30</sub>Sb<sub>0.69</sub>Te<sub>0.01</sub> sample at 623K, which is comparable to the performance of Bi<sub>2</sub>Te<sub>3</sub>. Our findings suggest that Mg<sub>3</sub>Sb<sub>2-<em>x</em></sub>Bi<sub><em>x</em></sub> phases are promising low-cost and environmentally friendly thermoelectric materials mid-range temperature applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"168 ","pages":"Article 108011"},"PeriodicalIF":3.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321725","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

High-performance amorphous silicon - copper composite film anode for lithium-ion batteries with superior cycle stability and conductivity 高性能非晶硅-铜复合膜负极锂离子电池具有优异的循环稳定性和导电性

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-12 DOI: 10.1016/j.solidstatesciences.2025.108007

Wenyu Zheng , Haining Wu , Yajuan Jiang , Yicong Huang , Anhong Luo , Yunyun Zhao , Kunpeng Jiang , Huarui Xu , Guisheng Zhu

{"title":"High-performance amorphous silicon - copper composite film anode for lithium-ion batteries with superior cycle stability and conductivity","authors":"Wenyu Zheng , Haining Wu , Yajuan Jiang , Yicong Huang , Anhong Luo , Yunyun Zhao , Kunpeng Jiang , Huarui Xu , Guisheng Zhu","doi":"10.1016/j.solidstatesciences.2025.108007","DOIUrl":"10.1016/j.solidstatesciences.2025.108007","url":null,"abstract":"<div><div>With the continuous improvement of performance requirements for lithium-ion batteries, developing a high-volume stable anode has become a research priority. Amorphous silicon as a potential anode material for Li-ion batteries has a high theoretical specific capacity, but suffers from poor electrical conductivity and large volume expansion. Copper is renowned for its remarkable electrical conductivity and robust mechanical strength. Harnessing these exceptional properties, we can effectively improve the performance of silicon anodes. Through the magnetron sputtering method, an amorphous silicon - copper composite film anode has been successfully fabricated.</div><div>As a new type of anode material for lithium-ion batteries, the amorphous silicon-copper composite film has a first coulombic efficiency of 83.30 % at a current density of 420 mA/g and a reversible capacity retention rate of 95.63 % for 100 to 500 cycles. The volume expansion rate after 500 cycles is 176.9 %. The equivalent resistance of the composite film is about 136 Ohms, and the composite film has the advantages of high coulombic efficiency, good cycle stability, and good electrical conductivity, which provides a new idea and way to improve the performance of lithium-ion batteries.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"168 ","pages":"Article 108007"},"PeriodicalIF":3.4,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144321724","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

2D-graphite carbon nitride/covalent organic framework heterostructure for enhanced photocatalytic H2 evolution 二维石墨氮化碳/共价有机骨架异质结构增强光催化析氢

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-10 DOI: 10.1016/j.solidstatesciences.2025.108008

Hiba Elmansour , Donghui Wang , Shuanglong Li , Zehui Yu , Reem Emam , Feng Chen

{"title":"2D-graphite carbon nitride/covalent organic framework heterostructure for enhanced photocatalytic H2 evolution","authors":"Hiba Elmansour , Donghui Wang , Shuanglong Li , Zehui Yu , Reem Emam , Feng Chen","doi":"10.1016/j.solidstatesciences.2025.108008","DOIUrl":"10.1016/j.solidstatesciences.2025.108008","url":null,"abstract":"<div><div>Heterojunctions composed of two-dimensional <em>g</em>-C<sub>3</sub>N<sub>4</sub> (2D-CN) and covalent organic framework (TpPa-COF) were successfully prepared and named as 2D-CN/TpPa. TEM and XPS characterizations confirm that there is good contact between 2D-CN and TpPa-COF in the 2D-CN/TpPa. The fragmented 2D nanosheet structure of 2D-CN facilitates the formation of a more efficient heterojunction with TpPa-COF. 2D-CN/TpPa15 achieved the highest H<sub>2</sub> evolution rate of 19539 μmol g<sup>−1</sup> h<sup>−1</sup> under visible light irradiation, which is higher than that of BCN/TpPa15 (13,279 μmol g<sup>−1</sup> h<sup>−1</sup>) and represented a 3.8-fold and 148-fold improvement over 2D-CN and TpPa-COF, respectively. DFT calculations indicate that 2D-CN possesses a higher W<sub>f</sub> than TpPa-COF, thereby inducing the formation of a built-in electric field directed from TpPa-COF to 2D-CN in the 2D-CN/TpPa, which facilitates the migration of photogenerated electrons from the CB of 2D-CN to that of TpPa-COF under photoexcitation. Continuous experiments demonstrates that the photocatalytic activity of 2D-CN/TpPa15 remained stable following a 24 h photocatalytic reaction. This study proposes a promising strategy for developing <em>g</em>-C<sub>3</sub>N<sub>4</sub>-based composites with substantially enhanced photocatalytic performance.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"168 ","pages":"Article 108008"},"PeriodicalIF":3.4,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263633","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 hydrophobicity variations in hBN-Embedded SiO2-Na2O-B2O3-Bi2O3-ZnO-F glass-ceramic coating systems hbn包埋SiO2-Na2O-B2O3-Bi2O3-ZnO-F玻璃陶瓷涂层体系疏水性变化研究

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-09 DOI: 10.1016/j.solidstatesciences.2025.107996

Yaren Gücüyener , Elvan Nermin , Gamze Öztürk , Sinan Daloğlu , Oğuz Karaahmet , Buğra Çiçek

{"title":"Investigation of hydrophobicity variations in hBN-Embedded SiO2-Na2O-B2O3-Bi2O3-ZnO-F glass-ceramic coating systems","authors":"Yaren Gücüyener , Elvan Nermin , Gamze Öztürk , Sinan Daloğlu , Oğuz Karaahmet , Buğra Çiçek","doi":"10.1016/j.solidstatesciences.2025.107996","DOIUrl":"10.1016/j.solidstatesciences.2025.107996","url":null,"abstract":"<div><div>This study investigates the effect of hexagonal boron nitride (hBN) additives on the hydrophobicity and surface morphology of glass-ceramic coatings (GCCs). A precursor glass (PG) system composed of SiO<sub>2</sub>-Na<sub>2</sub>O-B<sub>2</sub>O<sub>3</sub>-Bi<sub>2</sub>O<sub>3</sub>-ZnO-F was milled with varying hBN concentrations (0 %, 0.5 %, 1.0 %, 3.0 %, and 5.0 %). The resulting slurries were wet-sprayed onto a metal substrate and subsequently devitrified at 810 °C for 4.5 min. X-ray Diffraction (XRD) analysis of the coatings confirmed the successful incorporation of hBN crystallinity within the glassy matrix. Non-contact optical profilometry (NCOP) revealed that surface roughness (Ra) increased from 1.58 μm to 2.89 μm, while topographic mapping showed an increase in surface height variation (Δh) from 20 μm to 45 μm as hBN content increased. Scanning Electron Microscopy (SEM) further corroborated these results, demonstrating a progressive increase in surface roughness with higher hBN content. The unmodified GCC exhibited a smooth and uniform morphology, whereas coatings with hBN, particularly at 5 wt%, displayed a rougher, more heterogeneous surface topography. These observed microstructural changes closely aligned with NCOP and contact angle measurements. Contact angle (CA) analysis demonstrated a notable enhancement in hydrophobicity, with values increasing from 27.27° for the unmodified GCC to 90.95° at the highest hBN concentration. These findings collectively demonstrate that incorporating hBN into GCCs effectively enhances surface roughness and hydrophobicity, thereby offering significant potential for various industrial applications.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"168 ","pages":"Article 107996"},"PeriodicalIF":3.4,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280580","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

Lithiation/delithiation kinetics in nano-, micro- and highly porous silicon 纳米、微孔和高孔硅的锂化/去硫动力学

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-06-06 DOI: 10.1016/j.solidstatesciences.2025.108004

D.A. Kislov , I.A. Stenina , A.B. Yaroslavtsev

引用次数: 0

Hexagonal Cu2O/Pt for photothermal and photo-Fenton synergistic degradation of dye contaminant 六方Cu2O/Pt光热与光fenton协同降解染料污染物

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-05-30 DOI: 10.1016/j.solidstatesciences.2025.107995

Pengshan Guo , En Li , Qingnan Zhang , Xinyue Yan , Jinghua Li

{"title":"Hexagonal Cu2O/Pt for photothermal and photo-Fenton synergistic degradation of dye contaminant","authors":"Pengshan Guo , En Li , Qingnan Zhang , Xinyue Yan , Jinghua Li","doi":"10.1016/j.solidstatesciences.2025.107995","DOIUrl":"10.1016/j.solidstatesciences.2025.107995","url":null,"abstract":"<div><div>The rising pollution of aquatic ecosystems due to industrial dyes makes it essential to create efficient strategies for remediation. In this study, we synthesized an unusual Cu<sub>2</sub>O/Pt photocatalytic Fenton-like catalyst through heterojunction engineering and high-temperature modification of cuprous oxide, with platinum nanoparticles serving as a cocatalyst to enhance charge separation and catalytic efficiency. Under near-infrared light irradiation, the Cu<sub>2</sub>O/Pt catalyst exhibited remarkable photothermal performance, rapidly achieving elevated temperatures that further accelerated the degradation of methylene blue. degradation experiments indicated that the Cu<sub>2</sub>O/Pt catalyst achieved over 99 % removal efficiency, outperforming pure Cu<sub>2</sub>O by facilitating greater hydroxyl radical generation through enhanced hydrogen peroxide decomposition. The enhanced degradation efficiency is attributed to the synergistic effect between Cu<sub>2</sub>O and Pt, which not only expands the effective pH range but also ensures the reproducibility and durability of the catalytic process. The results underscore the Cu<sub>2</sub>O/Pt system's advantageous potential for practical applications in wastewater treatment, offering an effective and sustainable approach to reduce industrial water pollution.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"167 ","pages":"Article 107995"},"PeriodicalIF":3.4,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184567","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

Visible light-driven S-scheme ZnS/OVs-BiOCl heterojunctions for CO2 reduction and pollutants degradation 可见光驱动S-scheme ZnS/OVs-BiOCl异质结用于CO2还原和污染物降解

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-05-28 DOI: 10.1016/j.solidstatesciences.2025.107993

Penghui Yang , Quanhao Liu , Siwen Ma , Song Luo , Wangsheng Qumu , Junbo Zhong , Dongmei Ma , Jiufu Chen

{"title":"Visible light-driven S-scheme ZnS/OVs-BiOCl heterojunctions for CO2 reduction and pollutants degradation","authors":"Penghui Yang , Quanhao Liu , Siwen Ma , Song Luo , Wangsheng Qumu , Junbo Zhong , Dongmei Ma , Jiufu Chen","doi":"10.1016/j.solidstatesciences.2025.107993","DOIUrl":"10.1016/j.solidstatesciences.2025.107993","url":null,"abstract":"<div><div>Construction of heterojunctions and introduction of oxygen vacancies (OVs) are effective approaches to enhance photocatalytic performance of BiOCl. In this study, S-scheme ZnS/OVs-BiOCl heterojunctions was prepared. The presence of ZnS influences the crystal growth of BiOCl and promotes the formation of OVs. Ultraviolet photoelectron spectroscopy (UPS) was employed to investigate the work functions of BiOCl and ZnS, providing insights into the electron transfer mechanisms. <em>In-situ</em> diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) reveals the dynamic process of CO<sub>2</sub> conversion to CO. Electron paramagnetic resonance (EPR) spectroscopy was employed to investigate the active radicals involved in the photocatalytic degradation process. The synergistic effect of the internal electric field (IEF) and OVs enhances the separation of photoinduced charges and light absorption capability of BiOCl. Under visible light irradiation, the rate of CO<sub>2</sub> conversion to CO on the BOC-7 sample (the mass ratio of ZnS/BiOCl is 7 %) is 2.53 times of that on the reference BiOCl. Furthermore, versatility of the photocatalyst was investigated by examining photocatalytic degradation of Rhodamine B (RhB), Ciprofloxacin (CIP) and Moxifloxacin (MXF) on the photocatalyst under visible light illumination. Under visible light irradiation, the degradation rate constant of RhB, CIP and MXF on the BOC-7 sample is 6.08, 2.49, and 3.67 times of that over the reference BiOCl, respectively. This study provides a rational strategy for the development of high-performance BiOCl photocatalysts for environmental remediation.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"167 ","pages":"Article 107993"},"PeriodicalIF":3.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144184568","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

Optical, magnetic and dielectric properties of CaO-B2O3-V2O5 glasses CaO-B2O3-V2O5玻璃的光学、磁性和介电性能

IF 3.4 3区化学

Solid State Sciences Pub Date : 2025-05-27 DOI: 10.1016/j.solidstatesciences.2025.107994

Ayoub Kaaouass , Abdelkader Ben Ali , Fouad Alloun , Hassan Ait Ahsaine , Daoud Mezzane , Mimoun El Marssi , Abdelilah Lahmar , Mohamed Saadi

{"title":"Optical, magnetic and dielectric properties of CaO-B2O3-V2O5 glasses","authors":"Ayoub Kaaouass , Abdelkader Ben Ali , Fouad Alloun , Hassan Ait Ahsaine , Daoud Mezzane , Mimoun El Marssi , Abdelilah Lahmar , Mohamed Saadi","doi":"10.1016/j.solidstatesciences.2025.107994","DOIUrl":"10.1016/j.solidstatesciences.2025.107994","url":null,"abstract":"<div><div>In this present study, glass materials belonging to the CaO-B<sub>2</sub>O<sub>3</sub>-V<sub>2</sub>O<sub>5</sub> system with different concentrations of V<sub>2</sub>O<sub>5</sub> were elaborated using the melt-quenching process. The main aim of this paper is to investigate the optical, magnetic and dielectric characteristics of these vitreous materials, and thus determine the impact of vanadium oxide. The optical parameters of the elaborated glassy samples, including the cut-off wavelength, band gap, Urbach energy, refractive index and molar refraction, are investigated in this work. The observed variations in cut-off wavelength, gap energy and refractive index indicated an increase in non-bridging oxygen atoms (NBO) with increasing V<sub>2</sub>O<sub>5</sub> content, which results in the conversion of BO<sub>3</sub> to BO<sub>4</sub> units. Urbach's energy values indicate that the glass samples with a higher vanadium content exhibit a more stable and uniform glass structure. The introduction of V<sub>2</sub>O<sub>5</sub> increased the refractive index and molar refraction. Furthermore, the magnetic properties revealed the paramagnetic behavior for all the glasses studied. Diamagnetic behavior at higher temperatures was also observed for two glasses, CBV1 and CBV2, as the content of V<sub>2</sub>O<sub>5</sub> decreased. The transition from diamagnetic to the paramagnetic state observed for CBV1 and CBV2 indicates the transformation of V<sup>5+</sup> to V<sup>4+</sup>. The dielectric parameters of glass samples CBV2 and CBV3 increase at higher temperatures, with CBV3 exhibiting a transition between the ferroelectric and the paraelectric phases. Moreover, the study of conductivity reveals the semiconducting nature of the studied glasses. The activation energy decreased with rising vanadium oxide content.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"167 ","pages":"Article 107994"},"PeriodicalIF":3.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170359","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