IF 19 1区材料科学

Advanced Functional Materials Pub Date : 2025-06-24 DOI: 10.1002/adfm.202510789

Gaoyuan Yang, Qin Zhou, Can Wang, Qiu Xiong, Lei Wang, Yibo Tu, Ruochuan Liu, Yao Wang, Chunming Liu, Yong Chen, Jiaxing Song, Zaifang Li, Lin‐Long Deng, Guijie Liang, Peng Gao, Wensheng Yan

{"title":"Fluorinated Epoxy for Tailoring PbI2 Residue in Perovskite Films to Realize Stable Perovskite Solar Cells with Fill Factor over 87%","authors":"Gaoyuan Yang, Qin Zhou, Can Wang, Qiu Xiong, Lei Wang, Yibo Tu, Ruochuan Liu, Yao Wang, Chunming Liu, Yong Chen, Jiaxing Song, Zaifang Li, Lin‐Long Deng, Guijie Liang, Peng Gao, Wensheng Yan","doi":"10.1002/adfm.202510789","DOIUrl":"https://doi.org/10.1002/adfm.202510789","url":null,"abstract":"The residual/excess PbI2 at the buried interface is directly related to undesirable charge transport loss and poor device stability, although empirical device optimization shows that a moderate excess PbI2 in the starting precursor solution benefits the film crystallization. Herein, the feasibility of fabricating a porous and rough PbI2 layer is demonstrated by incorporating a perfluorinated oxirane (TFHO) additive, thereby facilitating better penetration of the organic amine salts and promoting the crystallization process of perovskite films, as well as enhancing the resistance of water erosion. Surprisingly, the distribution of residual PbI2 in perovskite films is precisely regulated, and the oversized PbI2 clusters at the bottom surface are completely diminished. Consequently, TFHO‐modified perovskite solar cells (PSCs) achieve a champion efficiency of 25.24% with an ultra‐high fill factor of 87.61%. The enhanced light stability enables these cells to retain 80% of their initial efficiency after 1200 h of continuous 1‐sun illumination. Moreover, by incorporating TFHO into all‐air‐processed PSCs, a champion efficiency of 23.65% is achieved offering a promising prospect for promoting the commercialization of PSCs.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"25 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Modulation of Phase Separation and High-Temperature Mechanical Properties by L12 Phase in AlCoCrFeMo₀.₀₅Ni₂ High-Entropy Alloy L12相调制AlCoCrFeMo 0的相分离和高温力学性能。₀₅Ni₂高熵合金

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-06-24 DOI: 10.1016/j.jallcom.2025.181826

Zifeng Zhang, Bing Xu, Li Zhang, Jiqing Zhao, Zhihua Gong, Qilu Ye

{"title":"Modulation of Phase Separation and High-Temperature Mechanical Properties by L12 Phase in AlCoCrFeMo₀.₀₅Ni₂ High-Entropy Alloy","authors":"Zifeng Zhang, Bing Xu, Li Zhang, Jiqing Zhao, Zhihua Gong, Qilu Ye","doi":"10.1016/j.jallcom.2025.181826","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181826","url":null,"abstract":"The high-temperature strengthening mechanism of the L12 phase in AlCoCrFeMo₀.₀₅Ni₂ high-entropy alloy (HEA) remains unclear. This study investigates the high-temperature mechanical response of the L12 phase in this HEA using atomistic simulations. A 2×2×2 supercell was used to represent L12-structured regions in the quinary HEA, circumventing the limitations of modeling it directly within a 4-atom unit cell. The ordered (OM) and disordered (DM) models, with similar compositions, were compared under high-temperature deformation. The results revealed stress-induced phase decomposition in the OM, consistent with experimental observations in the alloy. The DM, conversely, exhibited superior phase stability. Furthermore, the OM exhibited significantly higher strength and enhanced ductility compared to the DM. Specifically, the OM showed a significant increase in the length of Shockley partial dislocations and stair-rod dislocations. Additionally, the OM exhibited a reduced dislocation density during tensile deformation. These observations collectively demonstrate that the OM possesses lower resistance to dislocation expansion and a greater propensity for cross-slip and dynamic recovery. This resulted in a lower work-hardening rate and improved uniform elongation, ductility, and toughness in the OM.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"132 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370805","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

Pre-Zincification of Sandwiched V2O5 to Accelerate Intercalation Kinetics and Mitigate Cathodic Passivation in Low N/P Ratio Zinc-Ion Pouch Cells 夹在中间的V2O5预镀锌加速低氮磷比锌离子袋电池的插层动力学和减轻阴极钝化

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-06-24 DOI: 10.1021/acs.nanolett.5c02349

Boli Nie, Shichao Yu, Ke Lu, Hong Zhang, Chun Cheng Yang, Qing Jiang

{"title":"Pre-Zincification of Sandwiched V2O5 to Accelerate Intercalation Kinetics and Mitigate Cathodic Passivation in Low N/P Ratio Zinc-Ion Pouch Cells","authors":"Boli Nie, Shichao Yu, Ke Lu, Hong Zhang, Chun Cheng Yang, Qing Jiang","doi":"10.1021/acs.nanolett.5c02349","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c02349","url":null,"abstract":"The structural instability and sluggish ion-intercalative kinetics of vanadium oxide simultaneously limit its realization of advanced cathodes for practical zinc-ion batteries. Herein, a facile one-step approach was proposed for in situ transformation from bulk V2O5 to sandwiched nanosheets with the atomic co-inserting interlayer. The pre-intercalated organic filler could widen the intercalative channels to accommodate continuous Zn-ion diffusion and increase the surface hydrophobicity for impeding vanadium dissolution. The pre-enrichment of charge carriers weakens the electrostatic interaction between the vanadium oxide lattice and intercalated cation, leading to superior structural stability and faster cation diffusion kinetics. Accordingly, the ensemble effect further efficiently mitigates cathodic passivation and facilitates a better electrochemical response of assembled zinc-ion pouch cells with an extremely low N/P ratio of 0.5, affording an energy density of 180 Wh kg–1. Importantly, anode-free zinc-ion full cells equipped with pre-zincificated cathodes was realized, advancing the promising practical potential of the designed cathodes.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"16 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Synergistic Regulation of De-solvation Effect and Planar Deposition via In-situ Interface Engineering for Ultra-Stable Dendrite-Free Zn-ion Batteries 基于原位界面工程的超稳定无枝晶锌离子电池脱溶剂效应与平面沉积的协同调节

IF 20.4 1区材料科学

Energy Storage Materials Pub Date : 2025-06-24 DOI: 10.1016/j.ensm.2025.104411

Tao Yang, Tianyu Shen, Yuhang Liang, Miaojie Fang, Hongbo Wu, Ouwei Sheng, Hongli Chen, Chang Dong, Haojie Ji, Jian Zhang, Rongkun Zheng, Hao Liu, Guoxiu Wang, Xuefeng Zhang

{"title":"Synergistic Regulation of De-solvation Effect and Planar Deposition via In-situ Interface Engineering for Ultra-Stable Dendrite-Free Zn-ion Batteries","authors":"Tao Yang, Tianyu Shen, Yuhang Liang, Miaojie Fang, Hongbo Wu, Ouwei Sheng, Hongli Chen, Chang Dong, Haojie Ji, Jian Zhang, Rongkun Zheng, Hao Liu, Guoxiu Wang, Xuefeng Zhang","doi":"10.1016/j.ensm.2025.104411","DOIUrl":"https://doi.org/10.1016/j.ensm.2025.104411","url":null,"abstract":"Advanced interfacial engineering is essential to address key challenges such as dendrite formation, parasitic reactions, and sluggish electrochemical kinetics, in aqueous zinc-ion batteries. In this study, by using a facile self-assembly method, we developed an armor-like interfacial layer (ZSL) on the Zn surface, serving as both an ion re-distributor and a protective barrier. This compact interfacial layer exhibits suitable hydrophilic and zincophilic features, enabling consistent and uniform Zn2+ flux and reducing voltage polarization. The ZSL also enhances the de-solvation process, speeds up zinc deposition kinetics, and suppresses parasitic reactions induced by water decomposition. Furthermore, it decreases the surface energy, promoting planar deposition of Zn2+. As a result, the modified zinc anodes demonstrate exceptional cycling stability, maintaining a dendrite-free surface for more than 8000 h with minimal byproduct formation. The asymmetric cell utilizing ZSL@Zn anodes exhibits highly stable reversibility over 6000 cycles with an average Coulombic efficiency (CE) of 99.89%. In full cells paired with Na2V6O16·3H2O (NVO) cathodes, the Zn-ion batteries exhibit excellent rate performance and long-term cycling durability. This work highlights the significant role of in-situ interfacial layers in achieving highly stable and reversible zinc anodes for large-scale zinc-ion battery applications.","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"1 1","pages":""},"PeriodicalIF":20.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Multi-target nanocomposites for Alzheimer’s treatment via microenvironment modulation and β-amyloid plaque clearance 通过微环境调节和β-淀粉样斑块清除治疗阿尔茨海默病的多靶点纳米复合材料

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-06-24 DOI: 10.1016/j.jmst.2025.04.081

Tongtong Hou, Dan Nie, Minling Ding, Chaoli Wang, Kun Mei, Xuanzhao Lu, Xin Wang, Selene Tang, Hong Wu, Ping Guan, Wenlei Zhu, Xiaoling Hu

{"title":"Multi-target nanocomposites for Alzheimer’s treatment via microenvironment modulation and β-amyloid plaque clearance","authors":"Tongtong Hou, Dan Nie, Minling Ding, Chaoli Wang, Kun Mei, Xuanzhao Lu, Xin Wang, Selene Tang, Hong Wu, Ping Guan, Wenlei Zhu, Xiaoling Hu","doi":"10.1016/j.jmst.2025.04.081","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.081","url":null,"abstract":"Simultaneously addressing Aβ42 aggregation and oxidative stress within the Alzheimer's disease (AD) microenvironment has emerged as a promising therapeutic strategy for countering the complex pathogenesis of AD. In this study, we developed a multifunctional nanocomposite (GQDs@MPN) with reactive oxygen species scavenging properties. This nanocomposite consists of graphene quantum dots encapsulated within a metal-polyphenol network (GQDs@MPN) formed by physiological Co (II)-coordinated epigallocatechin gallate (EGCG). GQDs@MPN effectively modulates the AD microenvironment by inhibiting Aβ42 amyloidosis, attenuating oxidative stress, and regulating microglial activity. In vivo experiments demonstrated that GQDs@MPN, capable of crossing the blood-brain barrier (BBB), significantly reduced Aβ42 deposition in APP/PS1 mice. Additionally, GQDs@MPN could exert its anti-inflammatory function by scavenging intracellular ROS and regulating the transformation of microglia from M1 phenotype to M2 phenotype, thus alleviating neuroinflammation. The underlying molecular mechanism is the up-regulation of nuclear factor-erythroid 2-related factor 2 (Nrf2) to clear ROS and subsequently inhibit the nuclear factor κB (NF-κB) signaling pathway. GQDs@MPN also effectively alleviated cognitive impairment and exhibited favorable biocompatibility in APP/PS1 mice. These findings suggest that GQDs@MPN is a promising candidate for multi-targeted AD therapy. We propose that such multifunctional nanocomposites could offer new avenues for developing novel AD inhibitors.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"27 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144371081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-06-24

Hengjie Zhang, Bo Liang, Tianyou Wang, Jianhua Zhang, Wei Zhang, Lei Yang, Zhipeng Gu* and Yiwen Li*,