Materials Research Bulletin最新文献_第6页

Fabrication of carbon quantum dots by microemulsion route: Dual functional materials for energy storage and environmental treatment 微乳液法制备碳量子点：储能和环境处理双重功能材料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-14 DOI: 10.1016/j.materresbull.2025.113494

Ayesha Akram, Zohra Nazir Kayani

{"title":"Fabrication of carbon quantum dots by microemulsion route: Dual functional materials for energy storage and environmental treatment","authors":"Ayesha Akram, Zohra Nazir Kayani","doi":"10.1016/j.materresbull.2025.113494","DOIUrl":"10.1016/j.materresbull.2025.113494","url":null,"abstract":"<div><div>In this research, Carbon quantum dots (CQDs) were synthesized by the microemulsion method with a variation of 1- 5 wt. % multi-walled carbon nanotubes (MWCNTs). Varying percentages of MWCNTs affected morphological, structural, antibacterial, photocatalytic, dielectric, electrochemical and optical properties of CQDs. X-ray diffractometer confirmed the formation of the cubic phase of carbon. SEM revealed a granular and a cloud like surface morphology that was not uniform, with a significant number of grain boundaries. FTIR spectroscopy was used to examine the different functional groups. As MWCNTs concentration increased, the band gap of CQDs reduced from 3.89 to 3.5 eV. These CQDs were suitable as absorbing layers for solar panels due to their reduced band gap and ability to absorb the visible portion of the electromagnetic spectrum. The dielectric properties of all CQDs were also examined. AC conductivity was increased with the increased MWCNTs content. Utilizing these CQDs considerably improved the efficiency of supercapacitors, resulting in specific capacitance ranging from 1007.81 to 4531.25 Fg<sup>-1</sup> with high energy and power density. This led to the manufacturing of supercapacitors in modern electrical devices. Furthermore, increasing MWCNTs concentration enhanced the photocatalytic properties of CQDs. These synthesized nanoparticles exhibit improved photocatalytic activity due to increased UV–VIS light absorption and decreased recombination of photoinduced electron-hole pairs. CQDs have strong antibacterial activity, especially against <em>salmonella enterica.</em> These CQDs have significance in supercapacitors and water treatment.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113494"},"PeriodicalIF":5.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A cost-effective approach to fabricate (1-x)KBiFe2O5-(x)CoFe2O4 multiferroic composites prepared via citric-assisted sol-gel method 柠檬酸辅助溶胶-凝胶法制备（1-x）KBiFe2O5-(x)CoFe2O4多铁复合材料

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-14 DOI: 10.1016/j.materresbull.2025.113495

D.P. Sahu , A. Mohanty , G. Palai , K. Chandrakanta , R. Jena , N. Mohapatra , S.D. Kaushik , U.K. Goutam , A.K. Singh

{"title":"A cost-effective approach to fabricate (1-x)KBiFe2O5-(x)CoFe2O4 multiferroic composites prepared via citric-assisted sol-gel method","authors":"D.P. Sahu , A. Mohanty , G. Palai , K. Chandrakanta , R. Jena , N. Mohapatra , S.D. Kaushik , U.K. Goutam , A.K. Singh","doi":"10.1016/j.materresbull.2025.113495","DOIUrl":"10.1016/j.materresbull.2025.113495","url":null,"abstract":"<div><div>This article investigates temperature-dependent magnetic, dielectric, and magnetoelectric (MD) properties of KBiFe<sub>2</sub>O<sub>5</sub>(KBFO)-CoFe<sub>2</sub>O<sub>4</sub>(CFO) composite, synthesized via the citric-assisted sol-gel method. The addition of CFO reduces the average grain size from 2.01 µm (KBFO) to 0.23 µm (0.7KBFO-0.3CFO). As the temperature declined, the improved <em>M<sub>R</sub></em> and <em>H<sub>C</sub></em> changes from 0.3768 ± 0.0018 to 0.8726 ± 0.0018 μ<sub>B</sub>/f.u. for 0.7KBFO-0.3CFO and 1196.3167±5.1481 to 20,986.7336±37.2229 Oe for 0.8KBFO-0.2CFO, respectively. The improved dielectric permittivity introduces a pronounced MD response. The dielectric permittivity at 300 K increased significantly from 35 (KBFO) to 155 in the 0.8KBFO-0.2CFO composite. In ±1.3T magnetic field, KBFO shows nearly 3.2 % MD coupling. However, the 20 % incorporation of CFO improves coupling to ∼17 %. Observed MD coupling involves a combination of Maxwell-Wagner polarization and dipolar relaxation. The significant dispersion at low temperatures suggests the presence of dielectric relaxation phenomena. In our finding, 0.8KBFO-0.2CFO is recommended as a sustainable multiferroic composite for low-energy data storage and information processing from cryogenic to RT and above.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113495"},"PeriodicalIF":5.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green synthesis and waterbath evaluation of antibacterial, photocatalytic, and antioxidant properties in Mn, Sm-Mn doped and composite nanoparticles derived from Dodonaea viscosa leaves extract 杜鹃叶提取物中Mn、Sm-Mn掺杂和复合纳米颗粒的绿色合成及其抗菌、光催化和抗氧化性能的水浴评价

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-14 DOI: 10.1016/j.materresbull.2025.113487

Uday Singh Thakur , Kuldeep Kumar , Kamal Jeet , Sunil Kumar , Naveen Thakur

{"title":"Green synthesis and waterbath evaluation of antibacterial, photocatalytic, and antioxidant properties in Mn, Sm-Mn doped and composite nanoparticles derived from Dodonaea viscosa leaves extract","authors":"Uday Singh Thakur , Kuldeep Kumar , Kamal Jeet , Sunil Kumar , Naveen Thakur","doi":"10.1016/j.materresbull.2025.113487","DOIUrl":"10.1016/j.materresbull.2025.113487","url":null,"abstract":"<div><div>The Mn pure, Sm-Mn doped, and Sm-Mn composite nanoparticles (NPs) were synthesized using <em>Dodonaea viscosa</em> L (DV) leaf extract. Mn and Sm were combined in ratios of 98:02 and 50:50 for doped and composite NPs respectively, and the mixture was kept at a controlled temperature in a waterbath under standard laboratory conditions. Various spectroscopic techniques were employed to characterize the synthesized samples. X-ray diffraction (XRD) patterns confirmed their crystallinity, with particle sizes estimated to range from 10 to 16 nm. Scanning electron microscopy (SEM) images revealed predominantly rod-like structures for pure Mn NPs, while Sm-Mn doped and composite NPs displayed a mix of spherical and rod-like shapes. Transmission electron microscopy (TEM) analysis indicated average NPs sizes ranging from 13 to 23 nm. Elemental and organic compositions were confirmed by energy-dispersive X-ray spectroscopy (EDX) and Fourier-transform infrared spectroscopy (FTIR) analysis. The energy band gaps ranged between 2.0 and 2.82 eV. X-ray photoelectron spectroscopy (XPS) analysis affirmed the purity of the synthesized materials. Antibacterial activity against human pathogens Gram-positive bacteria <em>Staphylococcus aureus</em> (<em>S.aureus</em>), and <em>Bacillus subtilis</em> (<em>B. subtilis</em>), and Gram-negative bacteria <em>Escherichia coli</em> (<em>E. coli</em>) was evaluated using the well diffusion method. Furthermore, Sm-Mn doped NPs exhibited highly efficient photocatalytic degradation for methyl orange (95.63 %), congo red (94.29 %), and methylene blue (94.95 %) dyes within 90 min. The highest antioxidant activity (91.95 %) was observed with Sm-Mn doped NPs.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113487"},"PeriodicalIF":5.3,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of zeolite by green synthesis from steel industry by-product LD-slag and its application for photodegradation 钢铁副产ld -渣绿色合成沸石及其在光降解中的应用

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-12 DOI: 10.1016/j.materresbull.2025.113492

Niladri Shekhar Samanta , Mihir Kumar Purkait

{"title":"Preparation of zeolite by green synthesis from steel industry by-product LD-slag and its application for photodegradation","authors":"Niladri Shekhar Samanta , Mihir Kumar Purkait","doi":"10.1016/j.materresbull.2025.113492","DOIUrl":"10.1016/j.materresbull.2025.113492","url":null,"abstract":"<div><div>The sodalite zeolite (SOD-zeolite) was synthesized via the green synthesis technique and the prepared sample was characterized using X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Field emission transmission electron microscopy (FETEM), Thermo gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) instruments. As confirmed by the XRD analysis, the SOD phase was dominated highly. However, the presence of a zeolite X sample has been identified. The BET surface area of the mesoporous type synthesized zeolite sample was found to be 18.11 m<sup>2</sup>/g. Thermal analysis reveals that the zeolite sample can sustain at an elevated temperature i.e., up to 1000 °C without any structural deformation. The influence of parameters like temperature, catalyst doses, and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) concentration was examined in the dye degradation study. The photodegradation efficiency of the as-synthesized zeolite sample for organic methylene blue (MB) dye was examined and found to be 100 % at 45 °C under visible light. With the highest catalyst dose at 0.05 g/L, the dye degradation was achieved at 95 %. Additionally, the degradation efficiency of the zeolite mixture sample was found to be 99.04 %, and 94.24 %, at 35, and 55 °C, respectively. The cost analysis study shows that converting hazardous LD-slag into a zeolite-like value-added material is an environmentally benign and sustainable way to reduce it.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113492"},"PeriodicalIF":5.3,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Empirical models for predicting cubic/pseudocubic lattice parameters of perovskites” [Materials Research Bulletin, 185(2025), 113318] “预测钙钛矿立方/准立方晶格参数的经验模型”的勘误表[材料研究通报，185(2025),113318]

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-12 DOI: 10.1016/j.materresbull.2025.113457

Bryan Wright, Rick Ubic

引用次数: 0

Negative thermal expansion effects, spectroscopic properties and electronic structure transformations in Tm2Zr(MoO4)5 Tm2Zr(MoO4)5的负热膨胀效应、光谱性质和电子结构转变

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-11 DOI: 10.1016/j.materresbull.2025.113485

Yunna Tushinova , Sesegma Dorzhieva , Aleksandra Logvinova , Bair Bazarov , Aleksandr Aleksandrovsky , Alexander Krylov , Nikolai Maximov , Maxim Molokeev , Aleksandr Oreshonkov , Victor Atuchin

{"title":"Negative thermal expansion effects, spectroscopic properties and electronic structure transformations in Tm2Zr(MoO4)5","authors":"Yunna Tushinova , Sesegma Dorzhieva , Aleksandra Logvinova , Bair Bazarov , Aleksandr Aleksandrovsky , Alexander Krylov , Nikolai Maximov , Maxim Molokeev , Aleksandr Oreshonkov , Victor Atuchin","doi":"10.1016/j.materresbull.2025.113485","DOIUrl":"10.1016/j.materresbull.2025.113485","url":null,"abstract":"<div><div>New noncentrosymmetric molybdate Tm<sub>2</sub>Zr(MoO<sub>4</sub>)<sub>5</sub> was synthesized. The crystal structure variation with temperature was determined by Rietveld analysis. At 303 K, the monoclinic structure was determined in space group <em>P</em>2<sub>1</sub>. A reversible phase transition <em>P</em>2<sub>1</sub>↔<em>Cmc</em>2<sub>1</sub> was found at 390 K. From 423 to 520 K, nearly a ZTE (α = 0.7 × 10<sup>−6</sup> K<sup>−1</sup>) behavior was revealed. In the range of 520–720 K, the negative thermal expansion (NTE) effect (α = -2.3 × 10<sup>−6</sup> K<sup>−1</sup>) is evident for the cell volume. Tm<sub>2</sub>Zr(MoO<sub>4</sub>)<sub>5</sub> is stable up to 1100 K. Electronic structures of monoclinic and orthorhombic Tm<sub>2</sub>Zr(MoO<sub>4</sub>)<sub>5</sub> were evaluated by DFT methods. The bandgap values determined for monoclinic Tm<sub>2</sub>Zr(MoO<sub>4</sub>)<sub>5</sub> are E<sub>g direct</sub> = 3.83 eV and E<sub>g indirect</sub> = 3.43 eV. The vibrational properties of monoclinic phase were characterized by Raman spectroscopy. The photoluminescence emission in monoclinic Tm<sub>2</sub>Zr(MoO<sub>4</sub>)<sub>5</sub> at 303 K is dominated by a narrower band at 650 nm due to the <sup>1</sup>G<sub>4</sub> - <sup>3</sup>F<sub>4</sub> transition.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113485"},"PeriodicalIF":5.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly efficient caffeic acid induced copper photocatalyst for degrading antibiotics 用于降解抗生素的高效咖啡酸诱导铜光催化剂

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-11 DOI: 10.1016/j.materresbull.2025.113491

Zhexiao Zhu, Jingyi Qu, Yangben Chen, Xiaolu Xu, Jiahui Lin, Shouxin Zhu, Zijie Fang, Sun Can, Kailin Xie, Hui Zheng

{"title":"Highly efficient caffeic acid induced copper photocatalyst for degrading antibiotics","authors":"Zhexiao Zhu, Jingyi Qu, Yangben Chen, Xiaolu Xu, Jiahui Lin, Shouxin Zhu, Zijie Fang, Sun Can, Kailin Xie, Hui Zheng","doi":"10.1016/j.materresbull.2025.113491","DOIUrl":"10.1016/j.materresbull.2025.113491","url":null,"abstract":"<div><div>To address the increasingly severe issue of antibiotic contamination, a photocatalyst with a unique structure was synthesized via a one-step hydrothermal method using copper nitrate trihydrate as the precursor material. In this process, the induction effect of caffeic acid was utilized to facilitate the synthesis. The induction effect of caffeic acid was employed in this process. The performance of the photocatalyst in degrading antibiotic-contaminated wastewater under visible light was comprehensively evaluated. An in-depth analysis of the photocatalyst properties was carried out utilizing a variety of advanced characterization techniques. The study demonstrated that the incorporation of caffeic acid substantially enhanced the catalyst's sensitivity to visible light, thereby promoting the generation of reactive species essential for the degradation of antibiotics. Specifically, under visible light irradiation at concentrations of 40 mg·L⁻¹ and 0.5 g·L⁻¹, the removal efficiencies for tetracycline (TC) and ciprofloxacin (CIP) were 96.3 % and 92.9 %, respectively. Additionally, the experimental results indicate that the removal rates of levofloxacin (LOFX), ofloxacin (OFX), norfloxacin (NFX), tetracycline hydrochloride (TCH), chlortetracycline hydrochloride (CCH), and oxytetracycline (OTC) all exceeded 95.0 % within 2 h. In addition, the experimental results demonstrate that the catalyst exhibits superior performance across a range of pH levels, from acidic to alkaline environments, in contaminated river water, indicating a promising approach for real-world environmental applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"189 ","pages":"Article 113491"},"PeriodicalIF":5.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnesium–aluminum layered double hydroxide/graphitic carbon nitride/zeolitic imidazolate framework-8 nanocomposite for enhanced tetracycline removal from aqueous solution 镁铝层状双氢氧化物/石墨氮化碳/沸石咪唑酸框架-8纳米复合材料对四环素的去除效果

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-11 DOI: 10.1016/j.materresbull.2025.113480

Zohreh Jalaledin , Ali Akbar Amooey , Shahram Ghasemi

{"title":"Magnesium–aluminum layered double hydroxide/graphitic carbon nitride/zeolitic imidazolate framework-8 nanocomposite for enhanced tetracycline removal from aqueous solution","authors":"Zohreh Jalaledin , Ali Akbar Amooey , Shahram Ghasemi","doi":"10.1016/j.materresbull.2025.113480","DOIUrl":"10.1016/j.materresbull.2025.113480","url":null,"abstract":"<div><div>During the last decade, tetracycline (TC) has been employed for the treatment of bacterial infections. While it offers benefits in the field of medicine care, its presence in water media leads to the pollution of the ecological systems and poses risks to public health. A ternary nanocomposite of magnesium-aluminum layered double hydroxide/graphitic carbon nitride/zeolitic imidazolate framework-8 (Mg-Al LDH/g-C<sub>3</sub>N<sub>4</sub>/ZIF-8) was fabricated to effectively adsorb TC from polluted media. The nanocomposite was analyzed using N<sub>2</sub> adsorption/desorption, FT-IR, FESEM, XRD, and EDS techniques. The effects of different factors including adsorbent dosage (5–15 mg), TC concentration (10–150 mg/L), initial pH of solution (4–10) and adsorption time (5–90 min) on TC removal efficiency were investigated. The optimization of parameter values for removing of TC with the Mg-Al LDH/g-C<sub>3</sub>N<sub>4</sub>/ZIF-8 nanocomposite was performed through response surface methodology (RSM) via central composite design method (CCD) approach. Different models have been tested to find an appropriate fit based on real data, by checking the analysis of variance (R<sup>2</sup>= 0.96, R<sub>adj</sub>= 0.94). The maximum value for adsorption capacity was obtained at dosage of 10 mg, contact time of 15 min, and pH =6. A maximum value of 454.55 mg/g for adsorption capacity was achieved via Langmuir model. In addition, the adsorbent maintained its optimal performance for TC removal after four reuses with about 4.5 % reduction in efficiency. According to obtained data, the nanocomposite has promising potential and effectiveness to eliminate TC antibiotic from aqueous solution.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113480"},"PeriodicalIF":5.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cu-doped CdTe nanoparticles synthesized by colloidal approach for optoelectronic and photodetector application 胶体法制备cu掺杂CdTe纳米粒子用于光电和光电探测器

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-10 DOI: 10.1016/j.materresbull.2025.113486

S. Supriya, S. Das, A. Parida, R. Naik

{"title":"Cu-doped CdTe nanoparticles synthesized by colloidal approach for optoelectronic and photodetector application","authors":"S. Supriya, S. Das, A. Parida, R. Naik","doi":"10.1016/j.materresbull.2025.113486","DOIUrl":"10.1016/j.materresbull.2025.113486","url":null,"abstract":"<div><div>This study reports the successful synthesis of Cu-doped CdTe nanoparticles using a colloidal synthesis method by varying Cu concentrations. X-ray diffraction characterization confirmed the CdTe hexagonal phase, with detectable phase shifts attributed to Cu incorporation. Raman spectroscopy provided valuable insights into the vibrational modes of CdTe, while transmission electron microscopy further validated the CdTe phase and revealed interplanar spacing values. Morphological analysis using field emission scanning electron microscopy indicated a consistent nanoparticle-like morphology. X-ray photoelectron spectroscopy offered a detailed understanding of the surface composition and electronic structure, confirming the presence of all constituent elements. UV–Vis spectroscopy demonstrated a reduction in the bandgap in the range 4.23–4.43 eV with increased Cu content, signifying alterations in the optical properties of the material. Observing 12.96 nAW<sup>-1</sup> photoresponsivity and 2.745 × 10<sup>5</sup> Jones detectivity is suitable for a better photodetector. The analysis revealed an enhanced current response and notable changes in the rise and decay times of the material under illumination. These findings emphasize the enhanced properties and applicability of Cu-doped CdTe nanoparticles, highlighting their potential photodetector and optoelectronic applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"189 ","pages":"Article 113486"},"PeriodicalIF":5.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced modeling and impedance spectroscopy analysis of a high performance perovskite solar cell based on Ag₂MgSnS₄ photoactive absorber 基于Ag₂MgSnS₄光活性吸收剂的高性能钙钛矿太阳能电池的先进建模和阻抗谱分析

IF 5.3 3区材料科学

Materials Research Bulletin Pub Date : 2025-04-10 DOI: 10.1016/j.materresbull.2025.113488

George G. Njema , Abderrahmane Elmelouky , Nicholas Rono , Edson L. Meyer , Joshua K. Kibet

{"title":"Advanced modeling and impedance spectroscopy analysis of a high performance perovskite solar cell based on Ag₂MgSnS₄ photoactive absorber","authors":"George G. Njema , Abderrahmane Elmelouky , Nicholas Rono , Edson L. Meyer , Joshua K. Kibet","doi":"10.1016/j.materresbull.2025.113488","DOIUrl":"10.1016/j.materresbull.2025.113488","url":null,"abstract":"<div><div>The major challenge in the photovoltaic technology has been to understand device physics at interfaces, stability, and potential toxicity. Herein, we conduct a comprehensive numerical evaluation of a novel lead-free environmentally friendly solar cell architecture, ITO/AZO/Ag₂MgSnS<sub>4</sub>/PEDOT:PSS/Fe, using the SCAPS-1D device simulator. Ag₂MgSnS₄ exhibits robust stability, excellent optoelectronic properties, and therefore a promising material in the photovoltaic technology. Thorough the analysis of alternating current characteristics of complex impedance (Z*) and complex modulus (M*) in the frequency range 10⁻³–10¹² Hz, ionic migration phenomena at interfaces, which has been difficult to understand in solar cell structures was evaluated. This model cell was rigorously validated through the determination of relaxation times, activation energies at interfaces and series resistance analysis. The device achieved power conversion efficiency (PCE) of 25.82 %, an impressive short-circuit current density (J<sub>sc</sub>) of 24.22 mA/cm², an open-circuit voltage (V<sub>oc</sub>) of 1.3030 V, and a remarkable fill factor (FF) of 81.82 %.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113488"},"PeriodicalIF":5.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0