Journal of Alloys and Compounds最新文献_第9页

Enhanced mechanical properties of Co-containing W-Ni3Al alloy by trace Y2O3 addition 添加微量 Y2O3 提高含 Co W-Ni3Al 合金的机械性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177769

Guangming Pan, Daoping Xiang, LuLu Hu, Ruipeng Mao

{"title":"Enhanced mechanical properties of Co-containing W-Ni3Al alloy by trace Y2O3 addition","authors":"Guangming Pan, Daoping Xiang, LuLu Hu, Ruipeng Mao","doi":"10.1016/j.jallcom.2024.177769","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177769","url":null,"abstract":"Although W-Ni3Al alloys have many promising applications in the civil and military fields, their further development requires better mechanical properties. In this study, based on our reported W-Ni3Al-Co alloy, its mechanical properties were greatly enhanced via adding trace Y2O3. Among them, the 0.1 wt.% Y2O3 added alloys exhibited excellent comprehensive properties, whose relative density, hardness, bending strength, and tungsten grain size were 99.86%, 71.2±0.22 HRA, 1733.32±27.32 MPa, and 3.57±1.15 μm, respectively. By analyzing the relationship between microstructures and mechanical properties of sintered W-8.9Ni3Al-1Co-0.1Y2O3 alloy, its outstanding mechanical properties were mainly attributed to the following factors: Firstly, the binder phase and W phase were solid-solution-strengthened by forming (Ni,Co)3(Al,W) and (W,Co,Al) solid solutions; Secondly, the added Y2O3 and formed Al2O3 particles contributed to produce the dispersion strengthening and fine grain strengthening; Thirdly, the interfaces between Y2O3 and Al2O3 were strengthened by the formed Y4Al2O9 phase. The above factors played an important role in improving the mechanical properties of containing-Co W-Ni3Al alloy, especially the substantial increase in bending strength.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"256 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142712670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Microstructure and magnetic properties of AlCoCrCuFeNi high-entropy alloy prepared by selective laser melting 选择性激光熔化制备的 AlCoCrCuFeNi 高熵合金的显微结构和磁性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177740

Xuzhao Hu, Zhenlin Xu, Xiquan Jia, Siyuan Li, Zhu Ye, Ailin Xia

{"title":"Microstructure and magnetic properties of AlCoCrCuFeNi high-entropy alloy prepared by selective laser melting","authors":"Xuzhao Hu, Zhenlin Xu, Xiquan Jia, Siyuan Li, Zhu Ye, Ailin Xia","doi":"10.1016/j.jallcom.2024.177740","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177740","url":null,"abstract":"An equiatomic AlCoCrCuFeNi multi-component high-entropy alloy was prepared by using selective laser melting (SLM) gas-atomized powders, focusing on the effects of different laser volumetric energy densities (VEDs) on the magnetic properties with microstructure evolution. The magnetic, electrical and mechanical properties were studied systematically. The as-printed alloy is mainly composed of body-centered cubic matrix accompanied by the homogeneous precipitation of the Cu-rich face-centered cubic nano-phase. Both alloys display typical ferromagnetism with relatively high coercivity, elevated resistivity, and exceptional hardness. With the VED increased from 54.2 to 109.5 J·mm-3, the coercivity increased from 218 to 235 Oe, while the saturation magnetization fluctuated within a certain range from 41.1 to 44.1 emu·g-1. Besides, the printed alloys also have a high nano-hardness and resistivity of 8.7 GPa and 356.9 µΩ·cm, respectively. The higher coercivity and better comprehensive magnetic properties are favorable to design new semi-hard magnetic high-entropy alloys obtained via an SLM method.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"20 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142712616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Double alkali metal salts synergistic activation coupled with S-doped cotton derived honeycomb porous carbon for enhanced zinc ion storage capability 双碱金属盐协同活化与掺杂 S 的棉衍生蜂窝状多孔碳相结合，增强锌离子存储能力

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177787

Shichang Han, Shuihua Yu, Hanfang Zhang, Huaqiang Chu

{"title":"Double alkali metal salts synergistic activation coupled with S-doped cotton derived honeycomb porous carbon for enhanced zinc ion storage capability","authors":"Shichang Han, Shuihua Yu, Hanfang Zhang, Huaqiang Chu","doi":"10.1016/j.jallcom.2024.177787","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177787","url":null,"abstract":"Biomass-derived carbon materials are ideal electrode materials due to their inherent eco-friendliness, easily available and unique micro-morphology. Herein, zinc ion capacitors (ZICs) are designed utilizing S doped honeycomb porous carbon nanosheet cathode, which is obtained via synergistic activation from sodium thiosulfate and potassium carbonate. The honeycomb microstructure is result from the pore-forming effect of double alkali metal salts, which can promote the electrolyte ion fast migration in the cathode. Besides, the S doping in carbon array can regulate the electron distribution within the carbon framework and lower the energy barrier for the chemical absorption of Zn2+/H+, which is demonstrated by density functional theory calculation and expected to produce additional capacitance. Further, the ex-situ X-ray photoelectron spectroscopy reveals the consistent changes in C-O-H and C-O-Zn throughout the charging and discharging cycles, which demonstrate the S doping can promote the reversible chemical adsorption and desorption reaction of Zn2+/H+. As a result, the S doping honeycomb porous carbon nanosheet cathode can achieves a high discharge capacity of 147.2 mAh g-1 and high energy density of 92.7 Wh kg-1. Additionally, the obtained material exhibits good cycling stability at 20 A g-1, retaining 99.9% of its initial capacity after 2000 cycles. This research presents a versatile approach to synthesizing heteroatom-doped carbon materials from biomass waste for ZICs.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"20 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142712591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Ensemble effect in porous bimetallic N/C nanocage-grafted CNTs for improved Li-O2 battery Cathodes 多孔双金属 N/C 纳米接枝 CNT 中的集合效应用于改良锂-O2 电池阴极

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177788

Tie Liu

{"title":"Ensemble effect in porous bimetallic N/C nanocage-grafted CNTs for improved Li-O2 battery Cathodes","authors":"Tie Liu","doi":"10.1016/j.jallcom.2024.177788","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177788","url":null,"abstract":"The geometric design of atomically dispersed 'framework-active sites' grafted with carbonaceous materials to establish a well-connected three-dimensional network represents a compelling strategy for enhancing the performance of lithium-oxygen batteries, particularly in terms of cyclability. This paper introduces a simple approach that utilizes self-assembly heterogeneous nucleation to fabricate discrete bimetallic (Co, Ni) micron lattices grafted onto CNTs, exhibiting commendable surface properties. This intriguing hierarchical structure optimally harnesses the profound structural effects of CNTs weaving matrix, thereby imparting essential properties to the cathode, including high catalytic activity, intrinsically accessible active sites, and continuous porosity to accommodate discharge products. And such binary metal-nitride grafted configuration is significant in mitigating the embarrassing presence of nitrides (low conductivity) and carbon material (inferior activity). Consequently, cell measurement results indicate that a comparable capacity of 8599.7 mAh g⁻¹ and cyclic performance exceeding 200 cycles are achieved in a semi-solid state battery, outperforming commercially available RuC catalysts. And the DFT calculations further demonstrate the strong electronic coupling transfer and exceptional bifunctional activity observed in this binary metal-nitride sample. Therefore, this work exemplifies both steerable preparation techniques and the considerable potential inherent in geometric design for bimetallic sites grafted with carbonaceous material-based catalysts as they transition from Li-O2 to Li-air batteries.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"16 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142712610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Thermal properties for Al2O3-based melt-grown ceramics prepared by laser-directed energy deposition 激光定向能沉积制备的 Al2O3 基熔融生长陶瓷的热性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177795

Dake Zhao, Guijun Bi, Yunfei Huang, Jia Zhu, Lichao Chao, Fangyong Niu, Dongjiang Wu

{"title":"Thermal properties for Al2O3-based melt-grown ceramics prepared by laser-directed energy deposition","authors":"Dake Zhao, Guijun Bi, Yunfei Huang, Jia Zhu, Lichao Chao, Fangyong Niu, Dongjiang Wu","doi":"10.1016/j.jallcom.2024.177795","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177795","url":null,"abstract":"Laser-directed energy deposition (LDED) has significant potential for the high-quality fabrication of complex structured ceramic components for high-temperature applications. However, a lack of understanding regarding the thermal properties limits the application of this technology in the preparation of melt-grown ceramics (MGCs). Herein, the thermal properties of Al2O3/trace mullite MGCs obtained using LDED and subsequent heat treatment are investigated, including thermal shock resistance and high-temperature strength. The findings demonstrate that the materials are vulnerable to thermal shock with cracking occurring at a temperature difference (ΔT) of 300 ℃. As the ΔT increases, the residual strength declines significantly due to the increased internal defects and thermal stresses in the samples. The high-temperature flexural strength decreases gradually with rising temperatures, reaching a value of 247.23 ± 39.26 MPa at 1000 ℃, demonstrating a retention rate of 47.17%. This study provides a valuable reference for the practical high-temperature application of LDEDed Al2O3-based MGCs.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Expounding the structural behaviour of Nd0.5-xNaxSr0.5MnO3 (x=0, 0.05, 0.10) manganites 阐述 Nd0.5-xNaxSr0.5MnO3 (x=0, 0.05, 0.10) 锰矿的结构特性

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177789

, M.S. Murari, Mamatha D Daivajna

引用次数: 0

Effects of alloying elements on microstructure evolution, interfacial structure, and mechanical properties of Al/Cu laminate 合金元素对铝/铜层压板微观结构演变、界面结构和机械性能的影响

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177800

Kaiqiang Shen, Liang Chen, Jianwei Tang, Lihua Qian, Yuhui Zhao, Cunsheng Zhang

{"title":"Effects of alloying elements on microstructure evolution, interfacial structure, and mechanical properties of Al/Cu laminate","authors":"Kaiqiang Shen, Liang Chen, Jianwei Tang, Lihua Qian, Yuhui Zhao, Cunsheng Zhang","doi":"10.1016/j.jallcom.2024.177800","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177800","url":null,"abstract":"Hot press sintering process was employed to fabricate the Al/Cu laminates with pure Al or 6061Al as interlayer, and the effects of alloying elements on microstructure evolution, interfacial structure, and mechanical properties were clarified. A good metallurgical bonding was achieved and intermetallic compounds layers consisting of Al4Cu9, Al2Cu, and AlCu phases formed at the Al/Cu interface. Mg element facilitated the enrichment of Cu atoms and provided the nucleation sites for Al2Cu, resulting in a thicker Al2Cu phase and numerous dispersed Al2Cu particles in 6061Al/Cu laminate. MgAl2O4 phase distributed along 6061Al/Al2Cu interface, and it exhibits a coherent relationship with both 6061Al and Al2Cu, which contributed to enhancing the resistance of dislocation movement and the effectiveness of load transfer. During the tensile deformation of Al/Cu laminate using pure Al as the interlayer, the cracks were more likely to propagate across the Al/Al2Cu interface into the Al layer. When 6061Al was used as interlayer, the overall higher tensile strength was achieved, and the tensile curves showed two distinct stress drops. Moreover, the cracks faced greater resistance when traversing the 6061Al/Al2Cu interface during the expansion, and they tended to extend along the 6061Al/Cu interface, showing a distinct delamination fracture morphology.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"43 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Comprehensive study on Al3+ doped Ba0.9La0.1Fe12O19 hexaferrite: structural, morphological, and electrical properties 掺杂 Al3+ 的 Ba0.9La0.1Fe12O19 六价铁氧体的综合研究：结构、形态和电学特性

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177771

L. da-Costa-Catique, A. Delgado, P.A. Mariño-Castellanos, E. Govea-Alcaide, J. Anglada-Rivera, Y. Leyet, Ramón R. Peña-Garcia, F. Guerrero

{"title":"Comprehensive study on Al3+ doped Ba0.9La0.1Fe12O19 hexaferrite: structural, morphological, and electrical properties","authors":"L. da-Costa-Catique, A. Delgado, P.A. Mariño-Castellanos, E. Govea-Alcaide, J. Anglada-Rivera, Y. Leyet, Ramón R. Peña-Garcia, F. Guerrero","doi":"10.1016/j.jallcom.2024.177771","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177771","url":null,"abstract":"The present work conducted a comprehensive study on the structural, microstructural, and electrical properties of Ba0.9La0.1Fe12O19 hexaferrite doped with Al3+ ions. The Ba0.9La0.1Fe12-xAlxO19 system, with x = 0.0; 0.1; 0.3; 0.5; 0.7; 1.0, and 1.3 were prepared by ball milling assisted solid-state reaction method. The Rietveld method was utilized to refine the crystal structure, revealing an isostructural phase similar to a hexagonal magneto-plumbite mineral within the P63mc centrosymmetric space group (No-186). The lattice parameters (a, c, and V) reach a minimum at x = 0.7 for Al3+ content, exhibiting similar behavior when considering the other space group P63/mmc. In addition, the crystalline size and microstrain, determined for the size-strain plot method (SSP), are 47.2 to 142 nm and 1.2 × 10-3 to 3.9 × 10-3, respectively. The micrographic images revealed clusters of particles with an average grain size ranging from 0.57 to 1.48 μm. The AC conductivity remains constant at low frequencies, indicating the movement of long-range carriers. Dispersion at high frequencies results from electron hopping. The dielectric loss presented a low-frequency dispersion of the Maxwell-Wagner-type and dielectric relaxation at high frequencies. The study is important because it demonstrates the variation in the physical properties of doped barium hexaferrite.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"257 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142712599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The integrated effect of grain configuration and δ phase on micro-scaled mechanical stability of Nickel-based superalloy foil 晶粒构型和 δ 相对镍基超级合金箔微尺度机械稳定性的综合影响

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-26 DOI: 10.1016/j.jallcom.2024.177802

Shu-nan Chen, Jingjing Jiao, Xu Yang, Bingxing Wang, Bin Wang, Yong Tian

{"title":"The integrated effect of grain configuration and δ phase on micro-scaled mechanical stability of Nickel-based superalloy foil","authors":"Shu-nan Chen, Jingjing Jiao, Xu Yang, Bingxing Wang, Bin Wang, Yong Tian","doi":"10.1016/j.jallcom.2024.177802","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177802","url":null,"abstract":"The variety and complexity of the size effect make it difficult to predict the plastic deformation behavior of foil. In this study, 0.08 mm foils with different thickness-to-grain size ratios (t/d) and δ phase distribution were obtained by adjusting the rolling and annealing processes, and the microstructure evolution before and after tensile deformation was investigated. The results show that with the decrease of the t/d ratio, the reduced grain layers number in the thickness direction facilitates grain rotation and grain boundary sliding, which accelerates the dislocation annihilation and leads to poor work hardening ability and low flow stress. Meanwhile, the lack of restrictions between adjacent grains leads to the rapid expansion of cracks after void nucleation, mainly manifested as brittle fractures. The diffuse δ phase and fine grain enhance the constraining effect on dislocations and promote dislocation proliferation and interactions. The increased number of grain layers coordinates the deformation and contributes to an increase in the Schmid factor, which supports the sliding system opening and exhibits a superior elongation of 18.1%. The uniform δ phase exhibits good deformation compatibility and alleviates the stress concentration during the deformation process, and the interaction between neighboring grains promotes the development of uniform dimples after void nucleation, exhibiting a dominant ductile fracture. This study provides a new idea for the regulation of foil mechanical properties.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"6 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142718742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-Efficiency Self-Powered Photodetector for UV-Visible-NIR Spectrum Using Solution-Processed TiO2/Cu2ZnSnS4 Heterojunction in Superstrate Configuration 在叠层结构中使用溶液处理 TiO2/Cu2ZnSnS4 异质结的高效自供电紫外-可见-近红外光谱光电探测器

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2024-11-25 DOI: 10.1016/j.jallcom.2024.177758

Manoj Kangsabanik, Ritu Sarkar, Joydeep Chowdhury, Rabindra Nath Gayen

{"title":"High-Efficiency Self-Powered Photodetector for UV-Visible-NIR Spectrum Using Solution-Processed TiO2/Cu2ZnSnS4 Heterojunction in Superstrate Configuration","authors":"Manoj Kangsabanik, Ritu Sarkar, Joydeep Chowdhury, Rabindra Nath Gayen","doi":"10.1016/j.jallcom.2024.177758","DOIUrl":"https://doi.org/10.1016/j.jallcom.2024.177758","url":null,"abstract":"This study introduces a sustainable and efficient approach for self-powered photodetection using a solution-processed TiO2/CZTS heterojunction to detect the broad electromagnetic spectrum. CZTS thin films with a pure kesterite phase are synthesized via a cost-effective sol-gel spin coating technique, eliminating the need for high-temperature post-deposition sulfurization. The formation of the kesterite phase in CZTS films is confirmed through microstructural studies, Raman spectroscopy, and optical analyses. A high-quality heterojunction is fabricated by depositing the CZTS layer on chemically synthesized TiO2 thin film on FTO-coated glass substrates, and its photoresponse characteristics are studied under 365 nm, 405 nm, 532 nm, 650 nm, and 980 nm light in a superstrate configuration. The heterojunction exhibits optimal photoresponsivity (~1.28 mA/W), detectivity (~4.77 ×10¹⁰ Jones), and rise/decay times (~54 ms/27 ms) at zero external bias. It also demonstrates efficient performance under 1 sun AM1.5 G solar spectrum. The photodetection mechanism through carrier dynamics under illumination for the heterostructure is further investigated using impedance spectroscopy, incident light-dependent capacitance-voltage characteristics, and photo-capacitance measurements. This approach provides a cost-effective and scalable solution for self-powered photodetection, offering significant potential for integration into various optoelectronic devices for renewable energy harvesting and sensing applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"43 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142697025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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