Journal of Materials Chemistry C最新文献_第4页

Sumanene-based triazole-linked receptors 苏曼烯基三唑连接受体

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC02182K

Joachim Ażgin, Stanisław Kulczyk, Hidehiro Sakurai, Wojciech Wróblewski and Artur Kasprzak

{"title":"Sumanene-based triazole-linked receptors","authors":"Joachim Ażgin, Stanisław Kulczyk, Hidehiro Sakurai, Wojciech Wróblewski and Artur Kasprzak","doi":"10.1039/D5TC02182K","DOIUrl":"https://doi.org/10.1039/D5TC02182K","url":null,"abstract":"Designing molecular receptors featuring the bowl-shaped sumanene motif for detecting metal cations constitutes an emerging field of applied supramolecular chemistry of this buckybowl. In this work, we successfully synthesized a new class of sumanene-based receptors, whose key structural feature was the presence of two or three sumanene units linked via 1,2,3-triazole skeletons generated in a 1,3-dipolar cycloaddition reaction (click chemistry approach). It was found that the designed compounds detect metal cations in solution (spectrofluorometric studies), as well as in heterogeneous systems (polymeric membranes of potentiometric sensors). In terms of optical studies in solution, the title molecules exhibited fluorescence quenching behaviours upon addition of metal cations, with Stern–Volmer constant values at the level of 106 M−1. The spectrofluorometric and potentiometric results were in good agreement, revealing the preferential binding of lithium (Li+), caesium (Cs+), or copper(II) (Cu2+) cations, depending on the receptor structure. Density functional theory (DFT) computational studies were also performed on the structure and receptor properties of the title molecules. The results indicate attractive possibilities for the design of novel organic materials based on the sumanene scaffold and the ability to tune the properties of sumanene-based receptors for recognition of different metal cations.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 33","pages":" 16937-16945"},"PeriodicalIF":5.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc02182k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanoconfinement-induced orientation changes in liquid crystalline block co-oligomers† 纳米约束诱导液晶嵌段共聚物取向变化†

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC01674F

Juyeol Kim, Yujin Kang, Dong-Gue Kang, Hyewon Park, Yeongsik Kim, Chinedum O. Osuji, Hyungju Ahn, Changyeon Lee and Dong Ki Yoon

{"title":"Nanoconfinement-induced orientation changes in liquid crystalline block co-oligomers†","authors":"Juyeol Kim, Yujin Kang, Dong-Gue Kang, Hyewon Park, Yeongsik Kim, Chinedum O. Osuji, Hyungju Ahn, Changyeon Lee and Dong Ki Yoon","doi":"10.1039/D5TC01674F","DOIUrl":"https://doi.org/10.1039/D5TC01674F","url":null,"abstract":"Liquid crystalline block co-oligomers (LCBCOs) are a distinct class of hybrid materials that combine the long-range structural order of block copolymers with the inherent molecular alignment capabilities of liquid crystals. Nanoconfinement using anodic aluminum oxide (AAO) templates offers a versatile platform for directing their hierarchical organization. Herein, we systematically investigate the self-assembly behavior of azobenzene-functionalized LCBCOs under nanoconfinement by varying the pore diameter (Dpore) of AAO templates from 100 to 30 nm. Grazing incidence small-angle X-ray scattering analysis reveals that different smectic mesophases—such as bilayer, interdigitated, and monolayer structures—emerge as Dpore decreases. The reduction in Dpore also induces a reorientation of LCBCO smectic layers from perpendicular to parallel alignment with respect to the surface normal. We find that these structural transitions are coupled with confinement-induced reorientation of azobenzene mesogens, which is further influenced by surface anchoring effects. Our results underscore the profound impact of nanoconfinement on the self-assembly and molecular orientation of LCBCOs, offering a promising strategy for designing next-generation anisotropic soft materials and stimuli-responsive systems.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 34","pages":" 17674-17681"},"PeriodicalIF":5.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914478","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

Synthesis and characterization of oxynitride glass films to develop a host for divalent-europium-centres† 氮化氧玻璃薄膜的合成与表征，以发展二价铕中心为载体

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC01527H

Xun Liu, Takeo Ohsawa, Jian Xu, Masatoshi Yanagida, Kohsei Takahashi, Takashi Takeda, Tetsuo Kishi, Tetsuji Yano, Hiroyo Segawa and Naoki Ohashi

引用次数: 0

Mechanically robust liquid metal fibers with strain-insensitive conductivity 具有应变不敏感导电性的机械坚固的液态金属纤维

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC01818H

Sitong Hou, Hongyang Zhao, Qian Xu, Da Liu, Gaoling Jin, Yiming Xu, Jiye Wang, Minxuan Kuang and Xiuqin Zhang

{"title":"Mechanically robust liquid metal fibers with strain-insensitive conductivity","authors":"Sitong Hou, Hongyang Zhao, Qian Xu, Da Liu, Gaoling Jin, Yiming Xu, Jiye Wang, Minxuan Kuang and Xiuqin Zhang","doi":"10.1039/D5TC01818H","DOIUrl":"https://doi.org/10.1039/D5TC01818H","url":null,"abstract":"Highly stretchable conductive fibers that maintain electrical conductivity under significant mechanical deformation are critical for advancing applications in intelligent textiles. While gallium-based liquid metal (LM) has been widely utilized to fabricate strain-insensitive conductive fibers due to its fluidity at room temperature, existing LM-based fibers often suffer from insufficient mechanical strength and leakage issues under cyclic deformation. In this study, we address these challenges by integrating conductive TiO2 (C-TiO2) nanorods with fluidic LM to form a hybrid conductive network. The resulting LM/C-TiO2 composite fibers (LCTFs) exhibit remarkable mechanical robustness, with a breaking strength of approximately 18.2 MPa, an elongation at break exceeding 300%, and sustaining over 10 000 cycles of tensile deformation without LM leakage and conductivity degradation. Notably, the hybrid structure ensures stable electrical performance, with resistance changes limited to only ∼3% when stretched to 100% strain. This stability is attributed to the synergistic effects of the fluidic nature of LM and the strain-induced alignment of C-TiO2 nanorods, which maintain continuous conductive pathways under deformations. Furthermore, the fibers exhibit exceptional durability under diverse mechanical deformations, including bending, twisting, and compressive loading. This work introduces a scalable approach to address the trade-off between conductivity stability and mechanical integrity in LM-based fibers, offering promising opportunities for next-generation wearable electronic textiles.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 34","pages":" 17882-17892"},"PeriodicalIF":5.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914517","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

Structural isomerization engineering of hole transport materials for efficient perovskite solar cells 高效钙钛矿太阳能电池空穴输运材料的结构异构化工程

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC02448J

Mingxin Wang, Hao Sun, Junhong Tan, Cheng Zhong, Fei Wu and Linna Zhu

{"title":"Structural isomerization engineering of hole transport materials for efficient perovskite solar cells","authors":"Mingxin Wang, Hao Sun, Junhong Tan, Cheng Zhong, Fei Wu and Linna Zhu","doi":"10.1039/D5TC02448J","DOIUrl":"https://doi.org/10.1039/D5TC02448J","url":null,"abstract":"Organic hole transport materials (HTMs) are indispensable in the currently reported high-efficiency inverted perovskite solar cells (PSCs). The chemical structures and configurations of HTMs will determine the hole transport properties and interfacial contacts. Functional groups are usually required when designing HTMs. However, the impact of substitution positions of functional groups—particularly how structural isomerization modulates the hole transport properties—remains underexplored. Herein, two isomers BABD and TABD, with the same composition but different substitution positions, are developed as HTMs for PSCs. In BABD, the ester side chain was located on the central benzene ring, and the methoxyl groups were on thiophene, while the ester group was on thiophene and the methoxyl groups on the central benzene ring in TABD. Results reveal that the intramolecular S⋯O interactions exist in TABD, which enhance molecular planarity, promote ordered molecular stacking, and thus improve hole mobility. Meanwhile, the functional groups in TABD can also passivate the defects at the bottom interface of the perovskite and promote the growth of perovskite grains. As a result, TABD-based PSCs exhibit a high efficiency of 23.24% with excellent stability. Our work highlights the need for investigation into the relationship between the functional group position and the hole transport properties of HTMs.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 35","pages":" 18101-18107"},"PeriodicalIF":5.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037006","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

Multiscale simulation study on the mechanical, electrical, and thermal properties of ZnSb semiconductor ZnSb半导体机械、电学和热性能的多尺度模拟研究

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC01764E

Shihui Chen, Hanwen Yang, Guang Yang, Minghui Cheng, Zipei Zhang, Zhangfeng Wu and Jianping Lin

{"title":"Multiscale simulation study on the mechanical, electrical, and thermal properties of ZnSb semiconductor","authors":"Shihui Chen, Hanwen Yang, Guang Yang, Minghui Cheng, Zipei Zhang, Zhangfeng Wu and Jianping Lin","doi":"10.1039/D5TC01764E","DOIUrl":"https://doi.org/10.1039/D5TC01764E","url":null,"abstract":"This study presents a comprehensive investigation of the multifunctional properties of ZnSb semiconductors through integrated multiscale simulations. A highly accurate interatomic potential function for ZnSb was constructed and validated using density functional theory (DFT) and deep potential (DP) methods within the temperature range of 300 K to 800 K. Molecular dynamics (MD) simulations revealed the mechanical behavior of ZnSb along different crystallographic axes. The a-axis exhibited significant plastic deformation with a fracture strain of 32%, while the b-axis and c-axis demonstrated brittle fracture characteristics. As the temperature increased from 300 K to 700 K, both the elastic modulus and ultimate strength decreased significantly, indicating the detrimental effect of high temperatures on its mechanical properties. Simulations of thermoelectric performance showed that optimizing carrier concentration can significantly improve the power factor (PF). Electronic thermal conductivity (κe) increases with carrier concentration and temperature, but the Seebeck coefficient performs better at lower carrier concentrations. Thermal transport analysis revealed that the lattice thermal conductivity of ZnSb initially decreases and then increases with rising temperature, with the contribution of Sb–Sb bonds to thermal conductivity exceeding 50%. This study provides a theoretical foundation for the application of ZnSb materials in thermoelectric conversion and high-temperature devices, and highlights the key parameters for performance optimization.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 34","pages":" 17692-17700"},"PeriodicalIF":5.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914509","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

Strategic optimization of electrocaloric cooling: from material design to device innovation 电热冷却战略优化：从材料设计到器件创新

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-29 DOI: 10.1039/D5TC02482J

Ziman Wang, Huancheng Hou, Haowen Xue, Ziqing Ji, Hang Zhang and Xinyu Wang

{"title":"Strategic optimization of electrocaloric cooling: from material design to device innovation","authors":"Ziman Wang, Huancheng Hou, Haowen Xue, Ziqing Ji, Hang Zhang and Xinyu Wang","doi":"10.1039/D5TC02482J","DOIUrl":"https://doi.org/10.1039/D5TC02482J","url":null,"abstract":"Electrocaloric cooling technology, empowered by the breakthrough discovery of the giant electrocaloric effect in dielectric materials over ten years ago, has evolved into a promising solid-state refrigeration solution distinguished by zero global warming potential and exceptional energy efficiency. This review comprehensively discusses the fundamental mechanisms of the electrocaloric effect, recent advancements in electrocaloric materials, and breakthroughs in electrocaloric cooling devices. Distinctively, this review systematically summarizes existing regulation strategies for optimizing electrocaloric performance, encompassing compositional engineering, interface effects, size engineering, and multi-field coupling effects to enhance adiabatic temperature changes, reduce driving electric fields, and broaden operational temperature spans. Furthermore, current electrocaloric material systems are critically reviewed, with an in-depth analysis of how machine learning accelerates the exploration and systematic refinement of electrocaloric materials. Finally, a classification framework for existing electrocaloric cooling prototypes is established to guide the development of next-generation high-efficiency cooling devices. Ultimately, this review addresses present challenges and future prospects in electrocaloric cooling technology. This review provides conceptual guidance for researchers, accelerating the development of electrocaloric materials and broadening the application fields of electrocaloric devices.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 35","pages":" 18009-18030"},"PeriodicalIF":5.1,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036952","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

Effects of varying chalcogenophene spacer units between indole and benzothiadiazole based D–A–D type semiconducting small molecules on the characteristics of organic field effect transistors (OFETs)† 吲哚和苯并噻唑基D-A-D型半导体小分子间不同的硫代酚间隔单元对有机场效应晶体管（ofet）特性的影响

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-28 DOI: 10.1039/D5TC01678A

Chinthaka M. Udamulle Gedara, Ashutosh Shrivastava, Ziyuan Ma, Abhi Bhadran, Md Muktadir Talukder, Mihaela C. Stefan and Michael C. Biewer

{"title":"Effects of varying chalcogenophene spacer units between indole and benzothiadiazole based D–A–D type semiconducting small molecules on the characteristics of organic field effect transistors (OFETs)†","authors":"Chinthaka M. Udamulle Gedara, Ashutosh Shrivastava, Ziyuan Ma, Abhi Bhadran, Md Muktadir Talukder, Mihaela C. Stefan and Michael C. Biewer","doi":"10.1039/D5TC01678A","DOIUrl":"https://doi.org/10.1039/D5TC01678A","url":null,"abstract":"The introduction of selenophene and furan analogs as alternatives to widely used thiophene derivatives has garnered significant interest in semiconductors for enhancing optoelectronic properties and performance in electronic applications. In this study, we report the synthesis of two novel donor–acceptor–donor-based small molecules: diethyl 6,6′-(benzo[c][1,2,5]thiadiazole-4,7-diylbis(furan-5,2-diyl))bis(1-dodecyl-1H-indole-2-carboxylate) [IN-BT2F-IN] and diethyl 6,6′-(benzo[c][1,2,5]thiadiazole-4,7-diylbis(selenophene-5,2-diyl))bis(1-dodecyl-1H-indole-2-carboxylate) [IN-BT2Se-IN]. These molecules incorporate furan and selenophene spacers, respectively, bridged between indole (IN) and benzo[c][1,2,5]thiadiazole (BT) units and were investigated for their potential applications in organic field-effect transistors (OFETs). The selenophene-based material exhibited an average hole mobility of 0.019 cm2 V−1 s−1, with a maximum of 0.025 cm2 V−1 s−1 under annealing conditions, whereas the furan analog was OFET-inactive even after thermal annealing. We also evaluated the previously reported thiophene analog (IN-BT2T-IN) alongside these newly synthesized molecules to provide a systematic comparison. The findings demonstrate that OFET properties can be modulated by altering the spacer molecules within the same donor–acceptor framework. Specifically, replacing the thiophene spacer with selenophene between indole and benzothiadiazole led to a drastic improvement in hole mobility by one order of magnitude.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 35","pages":" 18126-18135"},"PeriodicalIF":5.1,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037029","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

Fiber electronics for wearable interactive systems 用于可穿戴交互系统的光纤电子器件

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-28 DOI: 10.1039/D5TC01895A

Xiaowen Bai, Meifang Zhu and Shaowu Pan

引用次数: 0

High-performance UV-Vis-NIR photomultiplier detectors based on titanyl phthalocyanine/squaraine dye bulk heterojunctions† 基于酞菁钛/方胺染料体异质结的高性能紫外-可见-近红外光电倍增管探测器

IF 5.1 2区材料科学

Journal of Materials Chemistry C Pub Date : 2025-07-25 DOI: 10.1039/D5TC01648G

Furui Jia, Dongjun Lv, Ping Wu, Jiahui Zhang, Nan Gao, Yirong Zhu, Xuelu Du, Mingli Feng, Xiaolong Li and Haofei Huang

{"title":"High-performance UV-Vis-NIR photomultiplier detectors based on titanyl phthalocyanine/squaraine dye bulk heterojunctions†","authors":"Furui Jia, Dongjun Lv, Ping Wu, Jiahui Zhang, Nan Gao, Yirong Zhu, Xuelu Du, Mingli Feng, Xiaolong Li and Haofei Huang","doi":"10.1039/D5TC01648G","DOIUrl":"https://doi.org/10.1039/D5TC01648G","url":null,"abstract":"Photodetectors have important applications in science and commerce, but achieving high-performance broad-spectrum detection is still challenging. In this work, a photosensitive composite (Y-TiOPc@SQ1) consisting of Y-type titanyl phthalocyanine (Y-TiOPc) and squaraine (SQ1) was constructed using a bulk heterojunction strategy. Research shows that the photodetector based on Y-TiOPc@0.5%SQ1 (Y-TiOPc@0.5%SQ1-PD) exhibits excellent photodetection properties from 365 nm to 940 nm. At a low intensity of 0.01 mW cm−2, the external quantum efficiency (EQE) at 365 nm is as high as 12 131%, and the photoresponsivity (R) is 35 683 mA W−1. Compared to Y-TiOPc-PD, it exhibits significant enhancements in the NIR region, with R and EQE increasing by 1.62-fold (700 nm), 1.75-fold (765 nm), 1.69-fold (850 nm), and 2.25-fold (940 nm). In addition, the device exhibits prompt, steady and reproducible photocurrent response curves. Such high performances are attributed to the co-sensitization synergistic coupling enhancement effect between Y-TiOPc NPs and SQ1, the improvement in carrier generation efficiency, separation efficiency and transport rates due to bulk heterojunctions, and the enhancement of external hole tunneling injection efficiency assisted by interfacial trapped electrons. This study demonstrates that the bulk heterojunction strategy based on phthalocyanine and squaraine can effectively improve the performance of photodetectors, offering a novel approach for developing high-sensitivity, wide-spectrum photodetectors.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 33","pages":" 17031-17043"},"PeriodicalIF":5.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887948","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