Materials Chemistry Frontiers最新文献

Covalent Organic Frameworks-based Nanoplatform with Enhanced Photothermal and Photodynamic Performance for Tumor Targeted Therapy 基于共价有机框架的纳米平台具有增强的光热和光动力性能，可用于肿瘤靶向治疗

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-06-05 DOI: 10.1039/d4qm00236a

Chaoyu Wang, Zhihui Xin, Zhiqiang Bai, Jiaxin Mao, Yaru Li, Zhifang Jia, Kewei Wang, Lu Zhao, Yunfeng Bai, Feng Feng

引用次数: 0

Instability of Two-dimensional Hybrid Perovskites Underpinned by Organic Molecule Loss under Light Illumination 光照下有机分子损耗支撑下的二维杂化过氧化物晶的不稳定性

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-06-04 DOI: 10.1039/d4qm00324a

Cenchen Zhong, Xiangli Che, Chao Xu, Changsheng Chen, Chen Yang, Ye Zhu

{"title":"Instability of Two-dimensional Hybrid Perovskites Underpinned by Organic Molecule Loss under Light Illumination","authors":"Cenchen Zhong, Xiangli Che, Chao Xu, Changsheng Chen, Chen Yang, Ye Zhu","doi":"10.1039/d4qm00324a","DOIUrl":"https://doi.org/10.1039/d4qm00324a","url":null,"abstract":"Two-dimensional (2D) organic-inorganic hybrid perovskites have emerged as a promising class of photovoltaic and optoelectronic materials. However, instability induced by external stimuli, particularly light, debilitates their applications. Here, we have systematically investigated the photostability in (BA)2(MA)n−1PbnBr3n+1 sample series via multimodal characterizations combining both microscopy and spectroscopy. Samples with all three compositions exhibit similar photodegradation mechanism, with higher photostability observed in higher n samples. By explicitly detecting the loss of BA and MA molecules driven by light illumination and quantitatively measuring their loss rates, we identified faster loss of BA molecules compared with MA, both occurring preferentially at the sample edges and surface cracks and leading to the collapse of the BA layers with the reduced sample thickness and intrinsic emission. Eventually all samples degrade into the transparent PbBr2 with an amorphous structure, which propagates gradually to the inside without altering the 2D shape of sample flakes. Our work not only advances the understanding of photostability of 2D perovskites, but also demonstrates a powerful characterization approach to quantitatively measure degradation kinetics associated with organic molecule loss in various hybrid perovskites.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255572","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

Fine-tuning of film morphology through addition of a third component enables organic solar cells with efficiency over 18% 通过添加第三种成分对薄膜形态进行微调，使有机太阳能电池的效率超过 18

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-06-04 DOI: 10.1039/d4qm00231h

Kun Wang, Chunxiao Sun, Cheng Zhang, Haolei Bai, Shuyang Sang, Yuechen Li, Zekun Chen, Jia'nan Hu, Xiaojun Li, Lei Meng, Yongfang Li

{"title":"Fine-tuning of film morphology through addition of a third component enables organic solar cells with efficiency over 18%","authors":"Kun Wang, Chunxiao Sun, Cheng Zhang, Haolei Bai, Shuyang Sang, Yuechen Li, Zekun Chen, Jia'nan Hu, Xiaojun Li, Lei Meng, Yongfang Li","doi":"10.1039/d4qm00231h","DOIUrl":"https://doi.org/10.1039/d4qm00231h","url":null,"abstract":"Ternary organic solar cells (OSCs) hold great promise for enhancing device performance. In this study, Y-TNF, which shares a similar structure with Y6 and exhibits good compatibility with PM6 and Y6, is introduced as the third component into the PM6:Y6 system. The resulting ternary photovoltaic device achieves a power conversion efficiency (PCE) exceeding 18%. Further analysis reveals that the addition of Y-TNF facilitates the formation of an optimal nanofiber network structure and a highly ordered molecular arrangement within the active layer. Compared to the binary PM6:Y6 system, the ternary PM6:Y6:Y-TNF system demonstrates improved carrier mobility, higher exciton dissociation efficiency, and enhanced charge collection efficiency, thus, leading to effectively suppressing trap-assisted and bimolecular charge recombination. These findings demonstrate that the incorporation of a structurally analogous third component can significantly enhance device efficiency of the OSCs, offering valuable insights and confidence for further performance enhancements in the future.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255583","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

AIE-Active Vitrimer with Photoluminescence, Reprocessibility and Shape Memory Effect 具有光致发光、可再加工性和形状记忆效应的 AIE 活性三聚体

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-06-03 DOI: 10.1039/d4qm00333k

Hongyao Niu, Zhou Deng, Fenfen Wang, Pingchuan Sun

{"title":"AIE-Active Vitrimer with Photoluminescence, Reprocessibility and Shape Memory Effect","authors":"Hongyao Niu, Zhou Deng, Fenfen Wang, Pingchuan Sun","doi":"10.1039/d4qm00333k","DOIUrl":"https://doi.org/10.1039/d4qm00333k","url":null,"abstract":"Vitrimer with covalent adaptable networks is a kind of dynamic crosslinked polymers that can be reprocessed and self-repaired. However, the unitary functionality and poor responsiveness to external stimuli of vitrimers result in limited potentials for applications as smart materials. Herein, we proposed a new strategy by constructing an aggregation-induced emission (AIE)-active vitrimer (TER) via crosslinking epoxy derivatives of tetraphenylethylene into a dynamic covalent network. The activated intramolecular rotation of AIEgen motifs with increasing temperature endows this vitrimer with thermal responsive photoluminescence. 1H static and 1H-13C wideline separation SSNMR experiments are used to investigate the molecular motion of the TER network, providing significant implications for RIM mechanism of AIE in this AIE-active vitrimer. Moreover, as a dynamic crosslinked network, TER is a promising versatile material with excellent photoluminescence, and reshaping, reprocessing as well as shape-memory properties. The AIE-active vitrimer not only represents a huge potential for further development of dynamic covalent polymers, but also extends the applications of vitrimer in different fields.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255926","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

Electrosynthesized fluorinated polybithiophenes for ammonia sensing 用于氨传感的电合成氟化聚噻吩

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-05-31 DOI: 10.1039/d4qm00323c

Petr Bečvář, Anna Krystianiak, Sujithkumar GANESH MOORTHY, Barbora Jansová, Michal Kohout, Rita Meunier-Prest, Marcel Bouvet

引用次数: 0

A NASICON-Type Na3.67Cu0.17Fe0.5V1.33(PO4)3 Cathode with Multi-Electron Reaction for High-Energy Sodium-Ion Battery 用于高能钠离子电池的具有多电子反应的 NASICON 型 Na3.67Cu0.17Fe0.5V1.33(PO4)3 阴极

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-05-30 DOI: 10.1039/d4qm00318g

Changliang Chen, Hao Fan, Zhaojian Wang, Mengyao Wang, Yu Zhang, Ping Hu, Liang Zhou

引用次数: 0

Recent progress in ladder-like polysilsesquioxane: Synthesis and applications 梯状聚硅氧烷的最新进展：合成与应用

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-05-29 DOI: 10.1039/d4qm00197d

Junkyu Kim, Youngjoo Park, Min Sang Kwon

引用次数: 0

Integrin αvβ3-targeted engineered carbon dots for efficacious sonodynamic therapy and fluorescence navigation surgery against gliomas† 整合素αvβ3靶向工程碳点用于神经胶质瘤的高效声动力疗法和荧光导航手术

IF 6 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-05-24 DOI: 10.1039/D4QM00311J

Xueli Ren, Yu Shi, Yanxi Yang and Zhe Liu

{"title":"Integrin αvβ3-targeted engineered carbon dots for efficacious sonodynamic therapy and fluorescence navigation surgery against gliomas†","authors":"Xueli Ren, Yu Shi, Yanxi Yang and Zhe Liu","doi":"10.1039/D4QM00311J","DOIUrl":"10.1039/D4QM00311J","url":null,"abstract":"Residual tumor margin is one of the major causes of cancer recurrence after surgical resection. Image-guided surgery is conducive to eradication of tumor lesions contributing to the avoidance of local recurrence, potential metastasis, and a poor survival rate, which is of significance to malignant tumor, especially invasive gliomas with high incidence and short survival time. Additionally, sonodynamic therapy (SDT) is a favorable method of tumor treatment with deep tissue penetration, non-invasiveness and reliable efficacy. Herein, engineered carbon dots of RB-CDs@RGD were fabricated for both SDT and fluorescence navigation surgery against gliomas. This engineered RB-CDs@RGD with αvβ3 integrin-targeting ability could generate sufficient reactive oxygen species (ROS) to induce glioma cell (rat glioma C6 cell) apoptosis. In vivo studies confirmed superior anti-tumor performance of RB-CDs@RGD with expected biocompatibility. Furthermore, RB-CDs@RGD as the tumor-targeted contrast agent was applied for fluorescence-guided surgery of gliomas given its outstanding fluorescence properties. Therefore, RB-CDs@RGD with distinctive fluorescence properties, SDT efficiency, and biosafety exhibited potential for application in distinguished fluorescence imaging-navigated surgery combined with SDT, and they could be used as a drug delivery nanoplatform for imaging-guided operative treatment with a promising prospect in clinic usage.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151153","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

Single Atom-Decorated Transition Metal Oxides Nanomaterials for Efficient Oxygen Evolution Reaction 用于高效氧气进化反应的单原子净化过渡金属氧化物纳米材料

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-05-22 DOI: 10.1039/d4qm00285g

Conghui Li, Cheng-Zong Yuan, Ling-Xian Wang, Fuling Wu, Lei Xin, Xiaomeng Zhang, An-Wu Xu

{"title":"Single Atom-Decorated Transition Metal Oxides Nanomaterials for Efficient Oxygen Evolution Reaction","authors":"Conghui Li, Cheng-Zong Yuan, Ling-Xian Wang, Fuling Wu, Lei Xin, Xiaomeng Zhang, An-Wu Xu","doi":"10.1039/d4qm00285g","DOIUrl":"https://doi.org/10.1039/d4qm00285g","url":null,"abstract":"As one promising technology for highly pure hydrogen production under mild conditions, electrochemical water splitting has been garnering substantial interest, while its efficiency and rate are primarily restricted by the sluggish anodic oxygen evolution reaction (OER). Up to now, the most efficient electrocatalysts for OER are still Ru or Ir-based nanomaterials, but features of high price, scarcity and instability limit their massive utilization in water splitting. Therefore, developing effective, inexpensive and stable electrocatalysts is critical for large-scale water splitting. In this review, the detailed OER reaction mechanisms were first discussed and then the principles for designing advanced single atom-decorated transition metal oxides-based OER electrocatalysts with excellent activities and stabilities were proposed accordingly. After that, recent advances about designing and preparing single atom-decorated transition metal oxide-based OER electrocatalysts were summarized in terms of synthetic methods and intrinsic natures to enhance OER. Meanwhile, the roles of atomically dispersed sites in transition metal oxides for OER performance improvement were presented. Finally, we also highlighted the key challenges and future opportunities of single atom-decorated transition metal oxide-based OER electrocatalysts to provide new insights into boosting low-cost transition metal oxides electrocatalysts for water splitting.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151217","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

Toward Practical Lithium–Sulfur Batteries 迈向实用的锂硫电池

IF 7 2区材料科学

Materials Chemistry Frontiers Pub Date : 2024-05-20 DOI: 10.1039/d4qm00180j

Weiwei Qian, Yawei Guo, Weijing Zuo, Xiangkun Wu, Lan Zhang

引用次数: 0