Journal of Materials Chemistry C最新文献

{"title":"Wearable and implantable transient bioelectronics","authors":"Yuwen Wang, Chong Wu, Yaokang Zhang, Shiwei Du and Xuechang Zhou","doi":"10.1039/D5TC01911G","DOIUrl":"https://doi.org/10.1039/D5TC01911G","url":null,"abstract":"<p >Transient bioelectronics that are easily degradable and recyclable have promising applications in wearable and implantable settings. Although the advancement of wearable and implantable transient bioelectronics is still in its early stages, recent advancements in materials (such as hydrogels and liquid metals) and devices have paved the way for high-performance and cost-effective transient bioelectronics. This short review focuses on the recent development of wearable and implantable transient bioelectronics. The fundamentals of transient bioelectronics, including the principles of material choice and device design, are discussed. The recent progress of transient bioelectronics in fields of biosignal sensing, wound healing, drug delivery, and therapy is also highlighted.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 14682-14696"},"PeriodicalIF":5.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695693","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":"Structure–property correlations of tetraphenylbenzidine-based self-assembled monolayers for perovskite and organic solar cells†","authors":"Wei Wang, Yao Xu, Baobing Fan, Hui Li, Zhengwei Hu, Houji Cai, Yi Zhang, Haiyang Zhao, Yazhong Wang, Wenkai Zhong, Fei Huang and Yong Cao","doi":"10.1039/D5TC01880C","DOIUrl":"https://doi.org/10.1039/D5TC01880C","url":null,"abstract":"<p >Self-assembled monolayers (SAMs) play a critical role in improving the performance of p–i–n type perovskite solar cells (PSCs) and organic solar cells (OSCs) by modulating interfacial energetics and morphology. However, designing SAMs that are effective across both technologies remains challenging due to the lack of clear, unified structure–property relationships. Here, we develop three new SAMs based on the tetraphenylbenzidine (TPD) core, <strong>6PA-TPD</strong>, <strong>6PA-TPDO</strong>, and <strong>6PA-TPDF</strong>, leveraging TPD's tunable energy levels, high hole mobility, and thermal stability. We investigate the impacts of methoxy and fluorine substitutions on key molecular properties, including dihedral angle, dipole moment, HOMO level, work function, surface morphology, and surface energy. Device studies show that <strong>6PA-TPDO</strong> achieves the highest power conversion efficiency of 23.18% in p–i–n type PSCs, while <strong>6PA-TPDF</strong> delivers a peak efficiency of 18.27% in OSCs. Correlation analysis reveals two complementary design strategies: in p–i–n type PSCs, optimizing dipole moment, work function, and surface morphology is crucial; in OSCs, tuning the HOMO level is the dominant factor. These findings provide actionable molecular design guidelines for TPD-based SAMs, enabling targeted interfacial engineering across distinct photovoltaic technologies.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 30","pages":" 15674-15681"},"PeriodicalIF":5.1,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751198","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":"Half-lantern Pt(ii) complexes in deep-red hybrid light-emitting diodes†","authors":"Iker Gil-Gómez de Segura, David Gómez de Segura, Marco Hasler, M. Teresa Moreno, Elena Lalinde, Mattia Nieddu, Rubén D. Costa and Julio Fernandez-Cestau","doi":"10.1039/D5TC01319D","DOIUrl":"https://doi.org/10.1039/D5TC01319D","url":null,"abstract":"<p >A series of Pt(<small>II</small>) complexes [Pt(piq)(μ-N^S)]<small>₂</small> (piq = 1-phenylisoquinolinate) [N^S = Spy (pyridine-2-thiolate), Spy-CF<small>₃</small> (5-trifluoromethylpyridine-2-thiolate), S-Q (quinoline-2-thiolate) and Spy-N (pyrimidine-2-thiolate)] are presented. They display a “half-lantern” disposition with two “Pt(piq)” fragments connected by a double pyridine thiolate bridge and remarkable short Pt⋯Pt distances (2.8–2.9 Å). The strong bonding interaction between the Pt(<small>II</small>) centers endows them with bright (up to 15% quantum yield (QY)) deep-red (down to 740 nm) phosphorescence in both powder and PMMA coatings. Theoretical calculations based on time-dependent density functional theory (TD-DFT) highlight that the nature of the emitting exciting state is related to a <small>³</small>MMLCT [dσ*(Pt–Pt) → π*(piq)] transition. However, the emission shifts noticeably towards the NIR region (up to 850 nm) in solution, depending on the type of complex and the concentration. Besides, dual emission was noted related to a high energy <small>³</small>MLCT [d(Pt) → π*(piq)] structured emission feature and the low-energy and broad <small>³</small>MMLCT emission band, highlighting the versatility of the half-lantern structure. Given their photophysical properties, the complexes were applied as color down-converting filters for the fabrication of deep-red hybrid light-emitting diodes (HLEDs).</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 15002-15012"},"PeriodicalIF":5.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695689","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":"Rhombohedral-to-cubic structural phase transition in (LaBi)0.7Ba0.3MnO3 manganites: an investigation on the “Cause and Effect” and magneto caloric response†","authors":"Lozil Denzil Mendonca, El Kebir Hlil, Mudiyarsu Subrahmanya Murari and Mamatha D. Daivajna","doi":"10.1039/D5TC00829H","DOIUrl":"https://doi.org/10.1039/D5TC00829H","url":null,"abstract":"<p >The major objective of this study was to revisit the first reported lanthanum-based colossal magneto resistive manganite (LaBa)MnO<small>₃</small> and substitute lanthanum with bismuth to steadily tune its magnetic transition temperature to different temperature regimes. The substitution was expected to result in structural, morphological and magnetic modifications owing to the Lewis acidic nature of the Bi<small>³⁺</small> ion and the large diffusivity of Bi<small>₂</small>O<small>₃</small> at high processing temperatures. Unexpectedly, a whole new spectrum of physical properties was observed after Bi<small>³⁺</small> substitution in La<small>_0.7</small>Ba<small>_0.3</small>MnO<small>₃</small>. A substitution-induced structural transition from <em>R</em><img><em>c</em> to <em>Pm</em><img><em>m</em> was manifested at around 20% of Bi substitution. Reversal to a highly symmetrical structure upon Bi substitution in La-based manganites is rare, so the reason for concentration-dependent phase change was investigated meticulously using X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. A-site cationic vacancies generated owing to Bi segregation from the lattice were found responsible for these structural transitions. The temperature-dependent magnetization study revealed Bi<small>³⁺</small>-assisted steady tuning of the Curie temperature from 333 K to room temperature (293 K) upon 0% to 10% substitution. The exceptional occurrence of transition temperature at 315 K, significant magnetic entropy change of 2.5 J kg<small>⁻¹</small> K<small>⁻¹</small> and adiabatic temperature change of ≈1.5 K at a magnetizing intensity of just 2 T in 5% Bi-substituted sample indicate its potential in magnetic refrigeration and medical applications, such as magnetic hyperthermia-based cancer therapy. This work presents a qualitative and preliminary investigation of a magnetic specimen for magnetic hyperthermia using a magnetic isotherm.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 15013-15040"},"PeriodicalIF":5.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc00829h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695690","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":"In situ construction of continuous porous AlN skeletons towards enhanced thermal conductivity of epoxy composites†","authors":"Chang Sun, Chang Yu, Muzi Liao, Yunqi Yuan, Baokai Wang, Mengyang Niu, Weiwei Xuan, Ming Yue and Qi Wang","doi":"10.1039/D5TC01493J","DOIUrl":"https://doi.org/10.1039/D5TC01493J","url":null,"abstract":"<p >Aluminum nitride (AlN) has great potential as a filler in thermally conductive composites due to its extremely high thermal conductivity (TC) (∼320 W m<small>⁻¹</small> K<small>⁻¹</small>). However, AlN suffers from drawbacks such as high cost and easy hydrolysis. Meanwhile, the traditional random mixing methods significantly increase the filler–polymer interface in composites, thus hindering the TC improvement. To address this issue, a three-dimensional (3D) porous AlN skeleton was successfully constructed through an <em>in situ</em> reaction strategy based on the carbothermal reduction nitriding (CRN) process, using inexpensive alumina as the raw material and polyurethane (PU) sponge as a hard template. The <em>in situ</em> grown AlN grains were tightly sintered together after a high-temperature reaction and connected to form a continuous 3D network, significantly increasing the thermally conductive pathways. Subsequently, the porous AlN skeleton was further used as a reinforcement to combine with epoxy (EP) to prepare thermally conductive composites. The AlN/EP composites achieved a TC of 1.84 W m<small>⁻¹</small> K<small>⁻¹</small> at the AlN filling fraction of 42.3 vol%, which was 10.22 times higher than that of pure EP and 4.27 times higher than that of composites with randomly dispersed AlN particles. In addition, the continuous porous AlN skeleton also provides excellent thermal stability and mechanical performance for composites. This work provides a low-cost and simple approach for the continued development of 3D inorganic skeleton/polymer composites, which is of great significance in the preparation of thermal management materials.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 14972-14981"},"PeriodicalIF":5.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695686","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":"Programmable chiroptical multilayer films assembled from self-healing stretchable elastomers for information encryption†","authors":"Panyi Xi, Yu Cao, Tanyi Tan, Xichong Ye and Feng Liu","doi":"10.1039/D5TC01653C","DOIUrl":"https://doi.org/10.1039/D5TC01653C","url":null,"abstract":"<p >Flexible chiroptical materials with strong and tunable optical activity are highly desirable for applications in optical encryption, quantum communication, and wearable photonic devices. Recently, various strategies have been developed for constructing flexible chiral plasmonic films. Among these, combining uniaxial alignment with twisted multilayer stacking offers an effective and scalable route to generate strong chiroptical signals using achiral building blocks. However, a key challenge remains in achieving highly ordered plasmonic nanostructures within deformable polymer matrices, which is essential for constructing tunable and robust chiral optical systems. Herein, we report a self-healing, ultra-stretchable hybrid elastomer composed of silver nanowires (AgNWs), waterborne polyurethane (WPU), and tempo-oxidized cellulose nanofibers (TOCNF), which enables the efficient formation of aligned anisotropic structures <em>via</em> uniaxial wet-stretching. The resulting AgNWs@WPU/TOCNF films exhibit ultrahigh stretchability (&gt;1000%) and retain their orientation after drying. Importantly, the intrinsic self-healing capability enables seamless twist-stacking of pre-aligned films through water-assisted interfacial fusion, resulting in robust multilayer architectures with strong circular dichroism signals, characterized by a maximum ellipticity of 13.3° and an absorption dissymmetry factor exceeding 0.6. Further integration with a fluorescent layer yields circularly polarized emission films with a luminescence dissymmetry factor up to 0.5. Leveraging the programmable optical responses, a multilayer encryption device was fabricated for information encoding and decoding based on polarization states. This work provides a scalable and modular platform for developing self-healing chiroptical devices with tunable optical functionalities and high potential for photonic encryption and smart wearable technologies.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 30","pages":" 15398-15406"},"PeriodicalIF":5.1,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751172","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":"Assessing the influence of nanoscale morphology on the mechanical properties of semiconducting polymers†","authors":"Silvia Cristofaro, Dorothée Brandt, Vincent Lemaur, Ki-Hwan Hwang, Ljiljana Fruk, Deepak Venkateshvaran, Luca Muccioli, Silvia Orlandi and Yoann Olivier","doi":"10.1039/D5TC01620G","DOIUrl":"https://doi.org/10.1039/D5TC01620G","url":null,"abstract":"<p >The ease of processability of conjugated organic polymers, alongside their capability of transporting charges, makes them excellent candidates for applications in flexible and biocompatible electronic devices. In such applications, retaining the electronic properties upon repeated cycles of mechanical strain is key to avoid losing device performance over time. To achieve an accurate mechanical characterization at the nanoscale of these partially crystalline systems, it is critical to have access to reference values of polymer elastic constants and to be able to relate them to the local morphology. With this objective, in the following, we set up a computational protocol for the calculation of elastic constants through molecular dynamics (MD) simulations in the linear deformation regime. We apply such a scheme to the prediction of the elastic behavior of two well-known semiconducting polymers (C16-IDTBT and C14-PBTTT) in crystalline and amorphous phases, showing that the local fluctuations of the Young's modulus can span two orders of magnitude owing to its strong dependence on morphology, anisotropy, and strain direction. The comparison with experimental measurements of the Young's modulus on the nanoscale suggests good agreement in calculated trends.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 30","pages":" 15506-15518"},"PeriodicalIF":5.1,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144751155","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":"Bacteria inspired soft robots with responsive flagellar bundles†","authors":"Liqiu Yang, Jie Wang, Jinyu Wang, Xiaoyu Wang, Shuai Huang, Tao Yang and Quan Li","doi":"10.1039/D5TC00958H","DOIUrl":"https://doi.org/10.1039/D5TC00958H","url":null,"abstract":"<p >When sensing favorable signals, peritrichous bacteria such as <em>E. coli</em> can switch from the “running” to the “tumbling” mode by reversing the rotation direction, resulting in the unbundling of flagella. Inspired by this adaptive behavior, we have developed bi-flagellated soft robots using 3D-printed liquid crystal elastomers/gels. These artificial flagella exhibit helicity reversal when the environmental temperature exceeds the nematic-to-isotropic temperature. The structural parameter transition allows individual flagella to change from helical to planar structures. Meanwhile, the bundling states between the flagella can be manipulated through the hydrodynamic couplings during rotation, thus altering the propulsion behavior of the robots. This dynamic control mechanism, akin to the bacterial chemotactic behaviors, effectively transforms material intelligence into self-adapting robots. Our design presents a novel approach to fabricating adaptive soft machines, with potential applications in various fields of robotics and beyond.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 15135-15143"},"PeriodicalIF":5.7,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695704","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":"Visible-light-driven photoresponsive color-changing materials with dual light signal outputs and enhanced performance for advanced applications†","authors":"Ji Fan, Zhaofeng Zheng, Hongqi Li, Zirun Zhan, Wei Wu, Bolin Ji, Hong Xu, Yi Zhong, Linping Zhang and Zhiping Mao","doi":"10.1039/D5TC01035G","DOIUrl":"https://doi.org/10.1039/D5TC01035G","url":null,"abstract":"<p >Light-responsive color-changing materials (LCCMs) have garnered significant attention due to their passive response to external stimuli and their pronounced visual color changes. However, the progression of these materials into high-end applications has been significantly impeded by limitations such as suboptimal performance, including incompatible color contrast and retention time, dependence on ultraviolet light as a stimulus, inadequate reusability for rapid erasure, and reliance on a single coloring mode. To overcome these challenges, we present a visible-light-driven LCCM capable of real-time dual optical signal output (color change or fluorescence emission) with high color contrast and resolution, extended retention time, exceptional reproducibility, and facile multicolor printing. These superior attributes are derived from the application of a photoinduced proton transfer (PPT) strategy, as demonstrated by the newly designed and synthesized photochromic molecular photoswitches (MC-1 to MC-4). Leveraging this strategy, the LCCM exhibits significant color change and fluorescence switching in a real-time and highly reversible manner under simple visible-light control. Consequently, we demonstrate the light-activated anti-counterfeiting function of fluorescence and self-erasing light-controlled patterns, highlighting their potential applications in advanced information encryption. This work provides valuable insights into the design of smart optical materials.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 14931-14942"},"PeriodicalIF":5.7,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695682","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":"Asymmetric perinone-based electron-collecting monolayer materials for n–i–p perovskite solar cells†","authors":"Julius Petrulevicius, Minh Anh Truong, Maryte Daskeviciene, Giedre Bubniene, Shota Hira, Yasuko Iwasaki, Tadas Malinauskas, Atsushi Wakamiya and Vytautas Getautis","doi":"10.1039/D5TC01485A","DOIUrl":"https://doi.org/10.1039/D5TC01485A","url":null,"abstract":"<p >A series of asymmetric perinone derivatives (<strong>PERNI</strong>) bearing different substituents (methyl, fluoro, chloro, bromo, and cyano) on the benzimidazole moiety were synthesized and investigated for possible application as electron-collecting monolayer materials in negative–intrinsic–positive perovskite solar cells. These compounds exhibit good thermal stability and suitable frontier molecular orbital energy levels for electron extraction and hole blocking. The perinone-based devices were found to demonstrate comparable power conversion efficiencies and higher operational stability than reference devices using the representative naphthalene diimide-based monolayer material under the same fabrication conditions. Within the <strong>PERNI</strong> series, devices fabricated with the chloro-substituted <strong>PERNI-Cl</strong> were found to tend to exhibit the highest open-circuit voltage and fill factor owing to the smallest energy offset between the lowest unoccupied molecular orbital and the conduction band of the perovskite.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 29","pages":" 14991-15001"},"PeriodicalIF":5.7,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d5tc01485a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695688","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}