Journal of Materials Chemistry C最新文献

{"title":"2024 Journal of Materials Chemistry Lectureship winner: Raphaële Clément, University of California, Santa Barbara, United States","authors":"","doi":"10.1039/D4TC90196G","DOIUrl":"https://doi.org/10.1039/D4TC90196G","url":null,"abstract":"<p >Congratulations to Dr Raphaële Clément, University of California, Santa Barbara, United States, for being selected as the recipient of the 2024 <em>Journal of Materials Chemistry</em> Lectureship.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 981-981"},"PeriodicalIF":5.7,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994096","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}

{"title":"2024 Journal of Materials Chemistry Lectureship runners-up: Maxx Arguilla, University of California, Irvine, United States, and Phillip Milner, Cornell University, United States","authors":"","doi":"10.1039/D4TC90197E","DOIUrl":"https://doi.org/10.1039/D4TC90197E","url":null,"abstract":"<p >Congratulations to our 2024 <em>Journal of Materials Chemistry</em> Lectureship runners-up: Dr Maxx Arguilla and Dr Phillip Milner.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 982-984"},"PeriodicalIF":5.7,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994097","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}

{"title":"Highly efficient deep-red organic light emitting diodes based on acenaphthopyrazine derivatives via π-bridge with thermally activated delayed fluorescence†","authors":"Zhuang Cheng, Xin He, Hui Liu, Shuyuan Ge, Yixuan Jiang, Futong Liu and Ping Lu","doi":"10.1039/D4TC04303K","DOIUrl":"https://doi.org/10.1039/D4TC04303K","url":null,"abstract":"<p >Deep-red emitters have been promising in applications such as organic light-emitting diodes (OLEDs), night vision, telecommunications, bioimaging and photodynamic therapy. However, these red fluorescent molecules, according to the energy gap law, generally suffer from large non-radiative internal conversion rates. Therefore, organic fluorescent materials with an emission wavelength beyond 640 nm remain highly limited till date. Herein, two thermally activated delayed fluorescence (TADF) emitters are designed and synthesized by attaching electron donors such as 9,9-diphenyl-9,10-dihydroacridine (DPAC) and 9,9-dimethyl-9,10-dihydroacridine (DMAC) to the electron acceptor of acenaphthopyrazine (AP). The high molecular rigidity of donors and acceptor suppresses energy loss <em>via</em> non-radiative internal conversion, and the introduction of bridging benzene increases the HOMO and the LUMO overlap. Thus, the combinations of DMAC–AP and DPAC–AP manifest a small Δ<em>E</em><small>_ST</small> and fast reverse intersystem crossing. With the delicate optimization of OLEDs, they both exhibit deep-red emission at 640 nm with the maximum external quantum efficiency over 14%. This work provides an effective strategy to obtain efficient deep-red emitters and also enriches the insights on TADF materials.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 5","pages":" 2508-2516"},"PeriodicalIF":5.7,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107626","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}

{"title":"Crystallinity-driven ferroelectric and piezoelectric properties of hydrothermally synthesized zinc stannate: exploring the substantial role of mineralizer NaOH†","authors":"Anupam Chowdhury, S. Wazed Ali and Bipin Kumar","doi":"10.1039/D4TC03855J","DOIUrl":"https://doi.org/10.1039/D4TC03855J","url":null,"abstract":"<p >Zinc stannate (ZS) belongs to a category of ternary semiconducting type perovskite-based nanomaterials which have accrued significant interest for their ferroelectric and piezoelectric properties. Such properties can be tuned by suitably modifying their unique crystal structures, which are influenced by the presence of different reactants used for synthesis. In this aspect, the mineralizer plays a significant role in tuning different crystal transitions of ZS by facilitating growth along specific crystal facets, along with other factors like thermodynamics and reaction kinetics playing an important role in determining the crystal structure. Herein, we have studied the effect of one of the widely used mineralizers namely NaOH at different concentrations varying from 0 M to 0.25 M and its effect on ferroelectric and piezoelectric properties of hydrothermally synthesized ZS. We have observed the existence of a polycrystalline phase without mineralizer, which gradually transitioned to a single crystalline material (face centred cubic perovskite ZnSn(OH)<small>₆</small> and ZnSnO<small>₃</small>) at 0.25 M NaOH, as affirmed by XRD and TEM analysis. Initially, in the absence of a mineralizer, ZS in the form of a cluster of nanoparticles was observed which transitioned to well-defined nanocubes at 0.25 M NaOH as evidenced by SEM and TEM micrographs. Furthermore, we observed a band gap transition from ∼3.4 eV to ∼1.63 eV, with an increase in NaOH concentration, as studied by UV-vis spectroscopy. Most importantly, the change in crystal transitions led to lossy ferroelectric behaviour at 0 M and an ideal ferroelectric state at 0.25 M mineralizer concentration. The dielectric and piezoelectric properties corroborated the ferroelectric behaviour. Thus, optimization of the mineralizer concentration gives us an insight and in-depth understanding of crystalline polymorphism in ZS nanostructures which can be further tailored to specific ferroelectric and piezoelectric applications.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 5","pages":" 2451-2458"},"PeriodicalIF":5.7,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107640","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}

{"title":"Centimeter-scale Gua3SbBr6 single crystals for white light-emitting diodes enabled by inhibition of multi-site nucleation†","authors":"Yongjiang Dou, Zirui Liu, Quanzhen Huang, Tiantian Shi, Sheng Wang and Xuyong Yang","doi":"10.1039/D4TC03776F","DOIUrl":"https://doi.org/10.1039/D4TC03776F","url":null,"abstract":"<p >High-quality single crystals (SCs) are crucial for advanced photoelectronic devices like light-emitting diodes (LEDs), lasers, and photodetectors. Zero-dimensional organic antimony-based metal halides, such as Gua<small>₃</small>SbX<small>₆</small>, offer great promise due to their unique structure and high photoluminescence quantum yield (PLQY). However, producing large-sized SCs remains challenging, because the multi-site nucleation leads to parasitic crystal formation, which consumes the abundant precursors. In this study, we utilized zinc acetate as an additive to cultivate centimeter-scale Gua<small>₃</small>SbBr<small>₆</small> SCs. Zn<small>²⁺</small> ions robustly coordinate with Br<small>⁻</small> ions, effectively retarding their participation in the SC seed formation and suppressing multi-site nucleation. These optimized SCs were used to fabricate a white light-emitting diode (WLED) with a high color rendering index (CRI) of 89 and a maximum power efficiency of 48.6 lm/W, significantly outperforming conventional WLEDs. This study not only deepens our understanding of crystal growth dynamics but also addresses a key challenge, paving the way for high-performance, eco-friendly photoelectronic devices using Gua<small>₃</small>SbBr<small>₆</small> SCs.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 1130-1137"},"PeriodicalIF":5.7,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993960","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}

{"title":"The self-assembly of polyacrylic acid nanoparticles induced by non-covalent interactions enhances the response of molecular fluorescent probes to formaldehyde†","authors":"Qingxin Han, Ruyun Sun, Xuechuan Wang, Lulu Ning, Luming Chen, Xiaoling Ling and Xiaoyu Guan","doi":"10.1039/D4TC04129A","DOIUrl":"https://doi.org/10.1039/D4TC04129A","url":null,"abstract":"<p >Formaldehyde (FA) is a potent carcinogenic volatile organic compound, whose sensitive detection is crucial for environmental monitoring and human health. Herein, we present polymeric fluorescent supramolecular architectures for fine-tuning the environmental adaptability of FA fluorescent probes. Notably, our research demonstrates that in aqueous solutions, the common polymer polyacrylic acid (PAA) can self-assemble with the small-molecular FA fluorescent probe NBHN (<em>N</em>-butyl-4-hydrazido-1,8-naphthalimide) into hollow nanoparticles (referred to as PAA@NBHN), driven by hydrogen bonding interactions and π–π stacking. This process enhances FA fluorescence detection by improving probe sensitivity, response time, water solubility, and stability. Additionally, incorporating the fluorescent molecule MBNI (<em>N</em>-butyl-4-methoxy-1,8-naphthalimide) and dye cresyl violet in PAA@NBHN enables color-tunable fluorescence for FA detection, advancing visual colorimetric reagents and paper-based sensors. These exhibit potential for quantitative FA detection in both air and solution, while the hollow-spherical PAA particle architecture shows significant promise for innovative applications as water-soluble nanomaterials across various fields.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 5","pages":" 2459-2469"},"PeriodicalIF":5.7,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107614","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}

{"title":"Quantum transport simulation of α-GeTe ferroelectric semiconductor transistors†","authors":"Qiang Li, Zongmeng Yang, Xingyue Yang, Wenjing Zhou, Chen Yang, Xiaotian Sun, Shibo Fang and Jing Lu","doi":"10.1039/D4TC04706K","DOIUrl":"https://doi.org/10.1039/D4TC04706K","url":null,"abstract":"<p >Ferroelectric semiconductor transistor is a newly proposed device that uses ferroelectric semiconductors as channel materials for integrated memory and computation. Currently, the main challenge in advancing ferroelectric semiconductor transistors (FeS-FETs) is finding ferroelectric channel materials that balance high performance with industrial production feasibility. In this work, we predict the performance of α-GeTe, a quasi-two-dimensional ferroelectric semiconductor with excellent compatibility with Si-based substrates, as a FeS-FET by <em>ab initio</em> quantum transport simulation. When taking negative capacitance technology and underlap structure into account, we find that α-GeTe ferroelectric semiconductor transistors can meet the international technology roadmap for semiconductors for high-performance standards for industrial-grade chip logic operations with a 5-nm channel length, and achieve a ferroelectric switch ratio of 228 at zero gate voltage. The memory window (0.9 V) of the 5-nm gate-length monolayer α-GeTe FeS-FETs is three times larger than that (0.3 V) of the α-In2<small>_S</small>e<small>₃</small> ferroelectric semiconductor transistor. Our work suggests that α-GeTe is a strong candidate for the future industrial fabrication of FeS-FETs.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 2","pages":" 568-577"},"PeriodicalIF":5.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918592","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}

{"title":"A robust, efficient ion transport polytetrafluoroethylene fibrous membrane-based separator with superior stability for ultralong-life zinc ion hybrid supercapacitors†","authors":"Zhiqian Wei, Biao Huang, Lixin Song, Yijian Chen, Pingfan Du, Hailin Zhu, Jie Xiong and Yuhai Guo","doi":"10.1039/D4TC03416C","DOIUrl":"https://doi.org/10.1039/D4TC03416C","url":null,"abstract":"<p >Zinc ion hybrid supercapacitors (ZHSCs) can function as a promising electrochemical energy storage system because they combine the high power characteristic of supercapacitors with the high energy capacity of zinc-ion batteries. However, Zn dendrite formation severely restricts the cycle life of ZHSCs. It has been demonstrated that separators with high mechanical strength significantly prolong the cycle life of zinc-metal anodes. Herein, a hydrophilic polytetrafluoroethylene (PTFE)-based separator with high mechanical strength was fabricated by introduction of a mixture of sodium dodecyl sulfate (SDS), polyacrylic acid (PAA), and titanium dioxide (TiO<small>₂</small>) nanoparticles into a PTFE fibrous membrane <em>via</em> a simple suction filtration method. The SDS/PAA/TiO<small>₂</small>/PTFE separator with a thickness of approximately 56 μm possessed high tensile strength (stress 81.2 MPa at 17.5% strain), superior to that of glass fiber (GF) separators (stress 0.3 MPa at 1.0% strain), and suppressed dendrite growth. Also, the SDS/PAA/TiO<small>₂</small>/PTFE separator exhibited promising electrolyte affinity, satisfactory electrolyte uptake (348%), high ionic conductivity of up to 15 × 10<small>⁻³</small> S cm<small>⁻¹</small> in 2 M ZnSO<small>₄</small> aqueous electrolyte, and appropriate porosity (55%). As a result, the ZHSCs based on PAA/SDS/TiO<small>₂</small>/PTFE separator exhibited outstanding electrochemical performance with specific capacitance (65 F g<small>⁻¹</small>) and excellent cycling stability (98.03% retention at 8000 cycles). This work provides new perspectives into the design of PTFE-based separators, and will expand the applications of PTFE by the use of a novel composite separator for the rapid charging of safe electrochemical energy storage devices.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 5","pages":" 2388-2398"},"PeriodicalIF":5.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107634","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}

{"title":"Lead-free lanthanide-based Cs3LnCl6 metal halides","authors":"Yuanzhe Ding, Dongjie Liu, Peipei Dang, Guogang Li and Jun Lin","doi":"10.1039/D4TC03748K","DOIUrl":"https://doi.org/10.1039/D4TC03748K","url":null,"abstract":"<p >All-inorganic lead-free luminescent metal halides have attracted considerable interest for their special optical properties in various optoelectronic applications. Among them, lanthanide-based Cs<small>₃</small>LnCl<small>₆</small> metal halides, with low phonon energies and suitable crystallographic features, have been in the spotlight due to their appealing optical properties. However, it remains challenging for us to know how to simply and efficiently synthesize lanthanide-based Cs<small>₃</small>LnCl<small>₆</small> metal halides, and how to optimize their low absorption and emission efficiencies owing to the parity-forbidden f–f transitions. In this minireview, we summarized several synthesis approaches towards both Cs<small>₃</small>LnCl<small>₆</small> polycrystals and nanocrystals. The association of the crystal/electronic structure, optical properties and applications is discussed in three sections: self-trapped emission, down-conversion luminescence, and upconversion luminescence. We provide not only the synthesis strategies and recent progress in the luminescence properties of Cs<small>₃</small>LnCl<small>₆</small>, but also their promising future as alternatives to their toxic and poorly stable lead-based counterparts.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 4","pages":" 1557-1572"},"PeriodicalIF":5.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d4tc03748k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107420","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}

{"title":"Aerogel for random lasing and sensors with thermal insulation†","authors":"Zhijia Hu, Zhiruo Wang, Xiaoyu Li, Guangyin Qu, Zhigang Cao, Siqi Li, Yan Kuai, Jiangying Xia and Benli Yu","doi":"10.1039/D4TC04462B","DOIUrl":"https://doi.org/10.1039/D4TC04462B","url":null,"abstract":"<p >Polymer aerogels have promising applications due to their high porosity, large specific surface area, low density, superior thermal conductivity, and biocompatibility, especially in the laser field. However, it is challenging to develop aerogels with excellent flexibility due to their doping fragility, which inhibits their laser performance. In this work, an acrylamide-<em>co</em>-poly(ethylene glycol) diacrylate (AM-<em>co</em>-PEGDA) polymer aerogel with excellent plasticity and low thermal conductivity (28 mW m<small>⁻¹</small> K<small>⁻¹</small>) is prepared <em>via</em> the freeze-drying method. In addition, the AM-<em>co</em>-PEGDA polymer aerogel is used to fabricate a polymer aerogel random laser (RL), which is found to have great thermal insulation and low temperature sensitivity compared with a hydrogel RL. Additionally, thermal insulation based on aerogel coating material is introduced in fiber sensors to prevent temperature effects. It is demonstrated that the aerogel significantly mitigates the effects of temperature on laser operation and fiber sensing crosstalk, effectively shielding 51% of the temperature effects. This work provides new insights into improving the environmental resilience and operational stability of laser devices and highlights the potential of AM-<em>co</em>-PEGDA aerogels in advanced optics.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 5","pages":" 2399-2405"},"PeriodicalIF":5.7,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107635","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}