Journal of Materials Chemistry C最新文献_第3页

A volatile nanocomposite memristor with a phase stratification dielectric layer: threshold switching with rich neuromorphic dynamics 具有相分层电介质层的挥发性纳米复合忆阻器：具有丰富神经形态动力学的阈值开关

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-28 DOI: 10.1039/D6TC01104G

Klim G. Mikhailov, Aleksandr I. Iliasov, Andrey V. Emelyanov, Anna N. Matsukatova, Timofey D. Patsaev, Aleksandr V. Sitnikov, Vladimir V. Rylkov and Vyacheslav A. Demin

{"title":"A volatile nanocomposite memristor with a phase stratification dielectric layer: threshold switching with rich neuromorphic dynamics","authors":"Klim G. Mikhailov, Aleksandr I. Iliasov, Andrey V. Emelyanov, Anna N. Matsukatova, Timofey D. Patsaev, Aleksandr V. Sitnikov, Vladimir V. Rylkov and Vyacheslav A. Demin","doi":"10.1039/D6TC01104G","DOIUrl":"https://doi.org/10.1039/D6TC01104G","url":null,"abstract":"Volatile threshold memristive switches are attractive for the fabrication of artificial compact neurons, third-order neuromorphic elements, and reservoir computing (RC) systems. The latter have emerged as a powerful neuromorphic framework for efficient temporal signal processing, offering a compelling combination of computational efficiency and low training cost. A key challenge, however, lies in finding hardware platforms that possess the necessary short-term memory and nonlinear dynamics to serve as physical reservoirs. In this work, we address this by introducing a volatile bi-layer nanocomposite-based (Co–Fe–B)–LiNbOx/(NbOy)–LiNbOz memristor, which exhibits pronounced and batch-to-batch reproducible short-term memory properties. A distinctive feature of this device is the cooperative nature of its threshold and resistive switching, allowing it to be modeled as a parallel connection of an NbO2-based selector and a LiNbO3-based nonvolatile memristor. We demonstrate that even a compact hardware system built around a single memristor can perform complex tasks. Specifically, we achieved 97.1% accuracy in handwritten-digit recognition from the MNIST dataset and a low normalized root mean square error of 0.028 in predicting the chaotic Hénon map time-series. This study expands the range of promising volatile nanocomposite memristive structures for neuromorphic computing applications, while additionally paving the way toward scalable, high-performance memristor-based RC systems for efficient complex temporal and spatial information processing.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 23","pages":" 9943-9953"},"PeriodicalIF":5.1,"publicationDate":"2026-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261408","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

Design and application of organic electron transport layers for efficient and stable perovskite photovoltaics 高效稳定的钙钛矿光伏电池中有机电子传输层的设计与应用

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-21 DOI: 10.1039/D6TC00291A

Huihong Shi and Zhenhua Li

引用次数: 0

Correction: Efficient transparent blue-emitted perovskite light-emitting diodes based on multilayer transparent top electrodes 更正：基于多层透明顶电极的高效透明蓝光钙钛矿发光二极管

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-20 DOI: 10.1039/D6TC90064J

Zhenghao He, Zhiqiang Bao, Xiaoyang Guo, Ying Lv, Tienan Wang, Yuejia Ma and Xingyuan Liu

引用次数: 0

Photo-responsive covalent polymeric materials via azobenzene–molecular container host–guest interactions 偶氮苯-分子容器主-客体相互作用的光响应共价聚合物材料

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-20 DOI: 10.1039/D6TC00558F

Rui Wang, Xinchao Ma, Yating Wang and Yang Yu

{"title":"Photo-responsive covalent polymeric materials via azobenzene–molecular container host–guest interactions","authors":"Rui Wang, Xinchao Ma, Yating Wang and Yang Yu","doi":"10.1039/D6TC00558F","DOIUrl":"https://doi.org/10.1039/D6TC00558F","url":null,"abstract":"The photo-switchable trans–cis isomerization of azobenzene endows it with excellent photofunctional characteristics, including high quantum yield, minimal photobleaching and distinct conformational changes, making it a classic building block for fabricating advanced photo-responsive functional materials. The integration of azobenzene and molecular containers through reversible host–guest interactions has emerged as a powerful strategy for constructing photo-responsive systems, in which trans-azobenzene stably embeds into the cavity of molecular containers, while light-induced trans-to-cis isomerization triggers complex dissociation due to the bent conformation and enhanced hydrophilicity of cis-azobenzene, thus realizing precise light-mediated regulation of material properties. In this review, we systematically summarize the latest progress of photo-responsive polymeric materials based on azobenzene–molecular container host–guest interactions over the past three years, with an exclusive focus on covalent polymeric materials and covalent molecular containers. The reviewed content is innovatively categorized according to the polymerization components, namely “polymerization of azobenzene”, “polymerization of molecular container”, and “polymerization of both azobenzene and molecular container”, which clarifies the diverse design paradigms of such photofunctional materials. We detail the structural design, photo-responsive mechanisms and functional applications of the representative materials, and further discuss the key challenges and future development directions of this research field. This review is expected to provide a comprehensive summary of the current research status and offers novel perspectives for the rational design and fabrication of next-generation photofunctional polymeric materials based on azobenzene–molecular container host–guest interactions.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 21","pages":" 8875-8889"},"PeriodicalIF":5.1,"publicationDate":"2026-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148146916","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

Relaxor behavior and ferroelectric polarization modified by Sm doping of Ba0.9Sr0.1Ti0.93Sn0.07O3 ceramics for electrocaloric cooling applications Sm掺杂对电热冷却用ba0.9 sr0.1 ti0.93 sn0.070 o3陶瓷弛豫行为和铁电极化的影响

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-19 DOI: 10.1039/D6TC00796A

Chenxi Zhai, Yingzhi Meng, Bangxian Xie, Dawei Wang, Biaolin Peng, Xue Chen and Laijun Liu

{"title":"Relaxor behavior and ferroelectric polarization modified by Sm doping of Ba0.9Sr0.1Ti0.93Sn0.07O3 ceramics for electrocaloric cooling applications","authors":"Chenxi Zhai, Yingzhi Meng, Bangxian Xie, Dawei Wang, Biaolin Peng, Xue Chen and Laijun Liu","doi":"10.1039/D6TC00796A","DOIUrl":"https://doi.org/10.1039/D6TC00796A","url":null,"abstract":"Electrocaloric (EC) cooling is a promising alternative to conventional vapor-compression refrigeration by virtue of its potential for miniaturization, its high energy efficiency, cost-effectiveness, and environmental benignity. However, the practical application of lead-free EC ceramic materials is hindered by the challenge of simultaneously realizing a large adiabatic temperature change (ΔT) and a broad operating temperature span (Tspan). In this work, Sm3+ was doped into the A-sites of a Ba0.9Sr0.1Ti0.93Sn0.07O3 ceramic system to modify its ferroelectric polarization and relaxor behavior. The (Ba0.9Sr0.1)0.995Sm0.005Ti0.93Sn0.07O3 ceramic exhibits a ΔT of 3.8 K at an electric field of 200 kV cm−1 near room temperature, accompanied by a wide Tspan of 78 °C. A decrease in oxygen-vacancy concentration with increasing Sm3+ doping content significantly improves the dielectric breakdown strength of the ceramics. The enhanced breakdown strength effectively boosts spontaneous polarization, thus enabling excellent room-temperature electrocaloric performance. This work provides a facile and effective compositional regulation strategy for optimizing the electrocaloric properties of BaTiO3-based ceramics for solid-state cooling applications.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 20","pages":" 8488-8498"},"PeriodicalIF":5.1,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148039715","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

LMPA-based magnetically actuated continuum robots with real-time reprogramming capability for minimally invasive biomedical applications 基于lmpa的磁驱动连续体机器人，具有实时重编程能力，用于微创生物医学应用

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-19 DOI: 10.1039/D5TC04505C

Zhizheng Gao, Wenbo Xu, Shuolei Wang, Zhixing Ge and Wenguang Yang

{"title":"LMPA-based magnetically actuated continuum robots with real-time reprogramming capability for minimally invasive biomedical applications","authors":"Zhizheng Gao, Wenbo Xu, Shuolei Wang, Zhixing Ge and Wenguang Yang","doi":"10.1039/D5TC04505C","DOIUrl":"https://doi.org/10.1039/D5TC04505C","url":null,"abstract":"Magnetic continuum robots (MCRs) hold significant promise for minimally invasive procedures due to their simple design and ease of miniaturization. However, the current deformation capabilities of MCRs are constrained by fixed magnetization configurations, leading to potential collisions with surrounding environments and limited access to hard-to-reach areas. In this study, we introduce a reprogrammable magnetic continuum robot (RMCR) driven by a proximal programmable unit (PPU). The RMCR can be selectively reprogrammed in real time using the melting and solidification of a low-melting-point alloy (LMPA). We conducted an in-depth investigation of the kinematic properties of the RMCR and the thermal characteristics of the PPU through modeling, numerical simulations, and experimental validation. The results show that the measured deflection angle of the RMCR and the complete phase transition temperature of the LMPA align closely with the simulation predictions. Additionally, by strategically embedding shape memory alloy clips on the distal drive unit of the RMCR, we successfully demonstrated obstacle capture and targeted drug delivery within a vascular model.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 22","pages":" 9467-9475"},"PeriodicalIF":5.1,"publicationDate":"2026-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148208688","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

Low-doping clustering of Ti4+ in monoclinic ZrO2: photoluminescence and formation mechanism Ti4+在单斜ZrO2中的低掺杂聚类：光致发光及其形成机制

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-18 DOI: 10.1039/D6TC00737F

Guo-Hui Pan, Xuesong Qu, Xiaobao Ma, Ligong Zhang, Liangliang Zhang, Huajun Wu, Hao Wu, Zhiming Shi and Jiahua Zhang

{"title":"Low-doping clustering of Ti4+ in monoclinic ZrO2: photoluminescence and formation mechanism","authors":"Guo-Hui Pan, Xuesong Qu, Xiaobao Ma, Ligong Zhang, Liangliang Zhang, Huajun Wu, Hao Wu, Zhiming Shi and Jiahua Zhang","doi":"10.1039/D6TC00737F","DOIUrl":"https://doi.org/10.1039/D6TC00737F","url":null,"abstract":"Clustering of dopant cations commonly occurs when they are incorporated into host matrices, particularly at high doping levels. In this work, we demonstrated, even at low doping levels, the energetically favorable formation of isovalently substituted Ti4+ clusters in the monoclinic phase of ZrO2 (m-ZrO2) using photoluminescence spectroscopy, extended X-ray absorption fine structure (EXAFS) spectroscopy and first-principles density functional theory (DFT) calculations. The oxygen vacancy–Ti dopant interactions critically reduce the doping energy cost, and Ti doping is favored for oxygen deficiency formation. The Ti4+ clusters feature a high degree of excited-state electron delocalization following charge-transfer (CT) excitation (O2− → Ti4+) and are responsible for the reduced quenching concentration and doping-dependent excitation band redshift. The occurrence of Ti4+ clustering was analyzed using a model that involved the electronegativity of dopant/host cations and the inherent neutral oxygen vacancies. The formation mechanism established is anticipated to be extendable to a broader range of material systems.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 23","pages":" 9923-9931"},"PeriodicalIF":5.1,"publicationDate":"2026-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261436","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

NIR-II electroluminescence from lanthanide-doped nanoparticles was achieved through triplet excitons 稀土掺杂纳米粒子通过三重态激子实现了NIR-II电致发光

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-15 DOI: 10.1039/D6TC00276E

Yu-Yang Chen and Yun-Qin Zhang

引用次数: 0

Design rules for nonlinear optical materials: dimensionality, interfaces, topological band geometry and data-driven discovery 非线性光学材料的设计规则：维度，界面，拓扑带几何和数据驱动的发现

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-15 DOI: 10.1039/D6TC00701E

Anirban Roy, Asfakujjaman, Deep Mondal and Debnarayan Jana

{"title":"Design rules for nonlinear optical materials: dimensionality, interfaces, topological band geometry and data-driven discovery","authors":"Anirban Roy, Asfakujjaman, Deep Mondal and Debnarayan Jana","doi":"10.1039/D6TC00701E","DOIUrl":"https://doi.org/10.1039/D6TC00701E","url":null,"abstract":"Nonlinear optical (NLO) materials underpin frequency conversion, ultrafast modulation, and light–matter control, yet conventional bulk crystals face practical constraints in tunability and integration. Motivated by the rapid expansion of low-dimensional, interface-engineered, and topology-driven platforms, this review provides a unified perspective on second- and third-order nonlinear responses across material dimensionalities, spanning bulk and bulk-like crystals to two-dimensional (2D) layers, van der Waals heterostructures, and quantum dots. We connect the fundamental framework of nonlinear susceptibilities with key structure–property design rules – particularly symmetry breaking, electronic asymmetry, confinement, and interface effects – and summarize experimental routes used to quantify χ(2) and χ(3). A central theme is the emergence of topology-enabled nonlinear optics, where Berry-phase geometry (including Berry curvature and the quantum metric) reshapes NLO design from symmetry–resonance optimization towards symmetry–geometry co-design, enabling robust nonlinear photocurrents and harmonic responses. We further review machine-learning strategies that accelerate screening and inverse design by extracting hidden descriptors and enabling rapid property prediction across large chemical spaces. Finally, we outline near-term opportunities and bottlenecks for translating material demonstrations into manufacturable, on-chip nonlinear photonic systems for frequency translation, ultrafast signal processing, and quantum photonics.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 24","pages":" 10417-10449"},"PeriodicalIF":5.1,"publicationDate":"2026-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148314657","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

Metal oxide semiconductor-based hydrogen sensors: material engineering strategies for performance enhancement 基于金属氧化物半导体的氢传感器：提高性能的材料工程策略

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2026-05-14 DOI: 10.1039/D6TC00344C

Sirui Li, Ni Tu, Juncheng Li, Cong Yu, Jianing Mao, Zhizhen Ye, Jie Jiang and Liping Zhu

{"title":"Metal oxide semiconductor-based hydrogen sensors: material engineering strategies for performance enhancement","authors":"Sirui Li, Ni Tu, Juncheng Li, Cong Yu, Jianing Mao, Zhizhen Ye, Jie Jiang and Liping Zhu","doi":"10.1039/D6TC00344C","DOIUrl":"https://doi.org/10.1039/D6TC00344C","url":null,"abstract":"Hydrogen is recognized as a clean energy carrier whose safe and efficient utilization relies on accurate and reliable sensing technologies. Among various sensing mechanisms, resistive hydrogen sensors based on metal oxide semiconductors (MOS) have drawn considerable interest owing to their high sensitivity, fast response, low cost, and compatibility with integration. This review systematically outlines recent advances in MOS-based hydrogen sensors, focusing on representative materials such as SnO2, ZnO, WO3, and TiO2. Starting from the intrinsic properties of these materials, including crystal structure, electronic band features, and defect chemistry, the underlying gas-sensing mechanisms are thoroughly analyzed. To enhance sensitivity, selectivity, response speed, and stability, four major material design strategies are examined in detail: nanostructure engineering, noble-metal functionalization, heterojunction construction, and defect control. These approaches act synergistically to tailor surface redox kinetics, catalytic activity, and interfacial charge transport, thereby enabling performance-oriented optimization of the sensors. Unlike a simple summary of reported materials and sensing performances, this review links intrinsic material properties, hydrogen-sensing mechanisms, and performance-enhancement strategies within a materials-oriented framework. By adopting a materials-centric and mechanism-oriented perspective, it aims to provide useful guidance for the rational design of high-performance MOS hydrogen sensors and to stimulate further progress in next-generation hydrogen detection technologies.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 20","pages":" 8457-8481"},"PeriodicalIF":5.1,"publicationDate":"2026-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148039714","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