{"title":"Cephalopod chromatophores contain photosensitizing nanostructures that may facilitate light sensing and signaling in the skin†","authors":"Taehwan Kim, Duncan Q. Bower and Leila F. Deravi","doi":"10.1039/D4TC04333B","DOIUrl":"https://doi.org/10.1039/D4TC04333B","url":null,"abstract":"<p >Cephalopods can sense and respond to changes in their environment using combinations of pigments, proteins, and/or nanostructures which are sequestered in the stratified optical organs of their dermal tissue. Of these organs, the chromatophore functions as a dynamic optical filter that imparts rapid and adaptive changes to the color and patterns presented in cephalopod skin. Chromatophores contain pigmented granules, but there is very little information available on whether their function extends beyond pigmentation. We examine granule performance within a photovoltaic cell and investigate their light sensing properties. Upon exposure to solar simulated light, photoexcited charge transfer is observed in devices containing the granules, where a photoconversion efficiency up to 0.81 ± 0.14% is recorded. This finding is the first to suggest that these biomaterials function as more than simple colorants; they may also be involved in light sensing and transduction to support adaptive camouflage.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 1138-1145"},"PeriodicalIF":5.7,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d4tc04333b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993961","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}
Wenhui Wang, Sheng Wang, Zimu Li, Jianyu Zhou, Shuai Liu, Tingting Xuan, Junshuo Zhang and Xinglong Gong
{"title":"A flexible protective electronic skin with tunable anti-impact and thermal insulation properties for potential rescue applications†","authors":"Wenhui Wang, Sheng Wang, Zimu Li, Jianyu Zhou, Shuai Liu, Tingting Xuan, Junshuo Zhang and Xinglong Gong","doi":"10.1039/D4TC04519J","DOIUrl":"https://doi.org/10.1039/D4TC04519J","url":null,"abstract":"<p >Flexible structural materials with multifunctional protective properties and intelligent sensing characteristics have garnered significant attention in recent research. Here, a sandwich-structured flexible protective electronic skin (FPES) was fabricated to provide synergistic protection against force and heat. The FPES, with dimensions of 25 × 25 × 11 mm<small><sup>3</sup></small>, demonstrated good impact resistance, effectively reducing impact force from 7.06 kN to 1.60 kN. Additionally, it exhibited impressive thermal insulation, maintaining a minimum upper surface temperature of 53.2 °C after being exposed on a 100 °C base plate for 30 minutes. Notably, owing to its shape memory performance, the impact and thermal protection capabilities of FPES could be dynamically adjusted by varying its thickness and area. Beyond its protective functions, FPES also served as an active feedback material with sensing capabilities for monitoring impacts and high temperatures. To illustrate its practical application, an integrated impact-heat alarm system was developed, showing its potential use in disaster rescue operations.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 1146-1156"},"PeriodicalIF":5.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993962","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":"Advanced functional inorganic materials for information technology and applications","authors":"Xuebin Wang, Haibo Zeng and Zhiguo Xia","doi":"10.1039/D4TC90207F","DOIUrl":"https://doi.org/10.1039/D4TC90207F","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 2","pages":" 518-520"},"PeriodicalIF":5.7,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918092","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}
K. Gurukrishna, Aditya Uday Kamat and Shikhar Misra
{"title":"Mott–vanadium dioxide-based memristors as artificial neurons for brain-inspired computing: a view on current advances","authors":"K. Gurukrishna, Aditya Uday Kamat and Shikhar Misra","doi":"10.1039/D4TC03347G","DOIUrl":"https://doi.org/10.1039/D4TC03347G","url":null,"abstract":"<p >VO<small><sub>2</sub></small> stands out as a unique material manifesting intrinsically coupled electronic and phase transitions. The novel electric field-activated phase transition behaviours, along with the high-resistance change rate, ultrarapid response, and low-power consumption in VO<small><sub>2</sub></small> memristors, provide a nonlinear dynamical response to input signals, as recommended to design neuromorphic circuit components. The present review focuses on the recent advancements in VO<small><sub>2</sub></small> memristor devices and the design of these devices into neuromorphic circuitry towards emulating the synaptic function, which facilitates a variety of applications in sensing, oscillators for spike coding, mechanoreceptors, and anthropomorphic neurorobotics, <em>etc.</em> A detailed picture is presented starting from the deposition of VO<small><sub>2</sub></small> films to the memristor circuits employing VO<small><sub>2</sub></small>-based devices, which contribute to the development of hardware neural network systems with brain-inspired algorithms, enabling the application of neuromorphic computing.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 1013-1035"},"PeriodicalIF":5.7,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994000","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}
Yizhou He, Qianxi Hao, Chi Zhang, Qi Wang, Wenxin Zeng, Jiamin Yu, Xue Yang, Shaorong Li, Xiaowei Guo and Serguei K. Lazarouk
{"title":"Correction: Facile synthesis of silicon quantum dots with photoluminescence in the near-ultraviolet to violet region via wet oxidation","authors":"Yizhou He, Qianxi Hao, Chi Zhang, Qi Wang, Wenxin Zeng, Jiamin Yu, Xue Yang, Shaorong Li, Xiaowei Guo and Serguei K. Lazarouk","doi":"10.1039/D4TC90203C","DOIUrl":"https://doi.org/10.1039/D4TC90203C","url":null,"abstract":"<p >Correction for ‘Facile synthesis of silicon quantum dots with photoluminescence in the near-ultraviolet to violet region <em>via</em> wet oxidation’ by Yizhou He <em>et al.</em>, <em>J. Mater. Chem. C</em>, 2024, https://doi.org/10.1039/d4tc02095b.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 3","pages":" 1519-1520"},"PeriodicalIF":5.7,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/tc/d4tc90203c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994095","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":"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}
Yongjiang Dou, Zirui Liu, Quanzhen Huang, Tiantian Shi, Sheng Wang and Xuyong Yang
{"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><sub>3</sub></small>SbX<small><sub>6</sub></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><sub>3</sub></small>SbBr<small><sub>6</sub></small> SCs. Zn<small><sup>2+</sup></small> ions robustly coordinate with Br<small><sup>−</sup></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><sub>3</sub></small>SbBr<small><sub>6</sub></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}
Qiang Li, Zongmeng Yang, Xingyue Yang, Wenjing Zhou, Chen Yang, Xiaotian Sun, Shibo Fang and Jing Lu
{"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><sub>S</sub></small>e<small><sub>3</sub></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}
Peter W. McDonald, Jingjing Xu, Dale R. Lonsdale, Isabelle Jones, Benjamin Poggi, Rosalind P. Cox, Stéphane Aloise, Andrew D. Scully, Clémence Allain, Laurence Bodelot, Stephen A. Moggach, Toby D. M. Bell, Rémi Métivier, Sebastian G. B. Furness, Lars Goerigk and Chris Ritchie
{"title":"Fluorescence modulation of pyridinium betaines: a mechanofluorochromic investigation†","authors":"Peter W. McDonald, Jingjing Xu, Dale R. Lonsdale, Isabelle Jones, Benjamin Poggi, Rosalind P. Cox, Stéphane Aloise, Andrew D. Scully, Clémence Allain, Laurence Bodelot, Stephen A. Moggach, Toby D. M. Bell, Rémi Métivier, Sebastian G. B. Furness, Lars Goerigk and Chris Ritchie","doi":"10.1039/D4TC04290E","DOIUrl":"https://doi.org/10.1039/D4TC04290E","url":null,"abstract":"<p >A reversible change in a material's fluorescence spectrum on the application of force is known as mechanofluorochromism (MFC) and is a well-established field of study. However, the mechanism(s) responsible for the chromism may be different for each new material and it is important to elucidate these for many reasons, including the rational design of new analogues with targeted properties. Herein, the photophysical properties and mechanistic understanding of two MFC pyridinium betaines are reported. The emission sensitivity is explained by the coexistence of crystalline and amorphous phases after the application of mechanical force, with increased conformational flexibility in the amorphous phase facilitating red-shifts in emission. This explanation is supported by evidence from a range of spectroscopic techniques, including electron diffraction (ED) and fluorescence lifetime imaging microscopy (FLIM) mapping, two techniques that have, to the best of our knowledge, not been applied in the field of MFC to mechanically ground particles. For one of the compounds, ED on ground microcrystallites shows unambiguously that the same crystalline phase is retained after grinding, along with an amorphous contribution, providing direct evidence for the crystalline-amorphous mechanism, and the presence of these two phases is further supported by FLIM mapping. We envision these techniques will be highly instructive for the analysis of similar materials.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 48","pages":" 19371-19385"},"PeriodicalIF":5.7,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810794","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}