Mrs Bulletin最新文献

{"title":"Journal Highlights","authors":"","doi":"10.1557/s43577-024-00701-0","DOIUrl":"https://doi.org/10.1557/s43577-024-00701-0","url":null,"abstract":"","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"19 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140937374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoluminescent Bi-doped CsPbX3 (X: Br, I) perovskite quantum dots for optoelectronic devices","authors":"Mabel Rodríguez-Fernández, Saray Gragera, José Carlos Piñero, Rodrigo Alcántara, Javier Navas","doi":"10.1557/s43577-024-00675-z","DOIUrl":"https://doi.org/10.1557/s43577-024-00675-z","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Perovskite quantum dots (PQDs) became a hot spot in recent years due to their amazing properties, such as the high photoluminescence quantum yield, tunable emission, and narrow bandwidth being important for their application in different optoelectronic devices. In this work, Bi-doped CsPbBr₃ and Bi-doped CsPbI₃ PQDs were synthesized through the hot-injection method and compared with pristine CsPbBr₃ and CsPbI₃ to analyze the effect of Bi and the halogen on their properties. In addition, all the samples were synthesized at 130°C, 150°C, and 170°C with the aim of analyzing the effect of the temperature. The results showed a wide range of the emission wavelength from around 500 nm (Bi-doped CsPbBr₃) to 630 nm (Bi-doped CsPbI₃) as a consequence of the effect of the halogen in “X” position and a slight blueshift in the main photoluminescence emission band after doping the pristine quantum dots with Bi.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3><h3 data-test=\"abstract-sub-heading\">Impact statement</h3><p>We believe that the work in this article represents an important advance in the application of perovskite quantum dots in optoelectronics applications, such as in LEDs or lasers. We report here the synthesis and characterization of Bi-doped CsPbX₃ perovskite quantum dots (PQDs), being X: Br and I. These Bi-doped PQDs show a wide range of the emission wavelength from around 500 nm (Bi-doped CsPbBr₃) to 630 nm (Bi-doped CsPbI₃) as a consequence of the effect of the halogen in “X” position and a slight blueshift in the main photoluminescence emission band after doping the pristine quantum dots with Bi. Therefore, they are good candidates to fabricate optoelectronic devices such as LEDs and lasers thanks to their high photoluminescence emission and their tunable emission.</p>","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"46 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patchy nanoparticles with surface complexity for directed self-assembly","authors":"","doi":"10.1557/s43577-024-00687-9","DOIUrl":"https://doi.org/10.1557/s43577-024-00687-9","url":null,"abstract":"<h3>Abstract</h3> <p>Patchy nanoparticles (PNPs) possess anisotropic surfaces that produce emergent directionalities in interactions. Manipulation of such surface complexities offers a powerful handle for control over interparticle spatial and orientational orderings, making PNPs an ideal class of nanoscale synthons for self-assembly. However, realization of PNPs with defined patch positions and geometries faces technical challenges related to the level of precision chemistry required to achieve the desired surface patterning. Here, we provide an in-depth review of state-of-the-art strategies available for PNP synthesis. We examine the experimental efforts made to synthesize PNPs, classifying advances based on different material types spanning organic and inorganic systems. We conclude by presenting barriers in PNP synthesis and highlighting ongoing theoretical efforts aimed at guiding experimental design and parameter selection for creating novel surface patterning on NPs.</p> <span> <h3>Graphical abstract</h3> <p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/43577_2024_687_Figb_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"24 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140150190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chiral assembly of nanoparticles in functional inorganic materials","authors":"","doi":"10.1557/s43577-024-00673-1","DOIUrl":"https://doi.org/10.1557/s43577-024-00673-1","url":null,"abstract":"<h3>Abstract</h3> <p>Chirality is prevalent in nature, offering unique inspirations for building functional inorganic materials. Within these intricate chiral materials, the assembly of nanoparticles as fundamental building blocks is supposed to contribute to the formation of chiral suprastructures. Herein, by a comprehensive review of various reported chiral materials recently, we systematically document the strategies for precise control of chiral materials synthesis via inorganic nanoparticle assembly, including additive-induced, template-directed, and physical field-mediated approaches. Additionally, we demonstrate the key applications of chiral assembly inorganic materials. In summary, this work likewise advances our understanding the roles of nanoparticle assembly in chiral suprastructures, which could provide important design insights into the fabrication of functional materials in structural applications.</p> <span> <h3>Graphical abstract</h3> <p> <span> <span> <img alt=\"\" src=\"https://static-content.springer.com/image/MediaObjects/43577_2024_673_Fige_HTML.png\"/> </span> </span></p> </span>","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"45 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140129934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the complexities of Li metal for solid-state Li-metal batteries","authors":"Andrew S. Westover","doi":"10.1557/s43577-024-00677-x","DOIUrl":"https://doi.org/10.1557/s43577-024-00677-x","url":null,"abstract":"<p>Li-metal anodes are a key enabling technology for next-generation high-energy batteries, including Li–S, Li-air, and high-voltage cathodes. While most research enabling Li metal focuses on electrolyte design, especially in the solid state, the nature of the Li metal itself has a significant impact on the performance of both solid- and liquid-based batteries. This has historically been understudied, but recent work has highlighted the importance of tailoring the Li metal to optimize high-performance batteries. This article focuses on the key aspects of Li metal that impact performance, including the method of synthesis, microstructure, surfaces, impurities, mechanics, and alloying strategies to optimize Li anode performance. The article will also briefly look at the impact of long-term cycling on the evolution of Li-metal anodes in solid-state batteries and highlight key areas of needed research.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"300 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140125974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Noninvasive current collectors improve current–density distribution during CO2 electrolysis","authors":"Rahul Rao","doi":"10.1557/s43577-024-00697-7","DOIUrl":"https://doi.org/10.1557/s43577-024-00697-7","url":null,"abstract":"","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"250 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140074098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrahigh fatigue resistance achieved in additively manufactured aluminum alloy","authors":"Jide Oyerinde","doi":"10.1557/s43577-024-00689-7","DOIUrl":"https://doi.org/10.1557/s43577-024-00689-7","url":null,"abstract":"","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"135 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140074040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"US policy empowers farmers to sequester carbon","authors":"Sindhu Nathan","doi":"10.1557/s43577-024-00683-z","DOIUrl":"https://doi.org/10.1557/s43577-024-00683-z","url":null,"abstract":"","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"88 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140074042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spider silk inspires a new route to organic magnets","authors":"Varun Ranade","doi":"10.1557/s43577-024-00667-z","DOIUrl":"https://doi.org/10.1557/s43577-024-00667-z","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Spider dragline silk is one of the most versatile natural materials ever known, with several incredible mechanical, optical, thermal, piezoelectric, and biological properties. However, its fundamental magnetic nature remains unknown. In the present study, we report the observation of room-temperature ferromagnetism in metal-free pristine spider dragline silks upon induction of defects in its β-sheet nanocrystals. The magnetism originates in spider silks due to ferromagnetic coupling among carbon radicals (dangling bonds) generated in β-sheet nanocrystals. Direct control over silk’s magnetic properties can be achieved by controlling its microstructure. This was achieved by changing the spinning speed of dragline silks from the spider and observing a direct effect on its magnetism. Owing to the high-temperature stability of silk, their ferromagnetism survives up to 400 K and remains unaffected by high humidity or contact with water. This makes silk-based magnets suitable for medical and technological applications. Spider silk can thus act as a multifunctional nontoxic biomagnet with incredible mechanical properties. Our work demonstrates a new paradigm of magnetic proteins and opens a route toward the bioinspired discovery of iron-free magnetic proteins. Biomimicking its structure is of great importance for designing future medical sensors and actuators, including advancements in tissue engineering and artificial muscles.</p><h3 data-test=\"abstract-sub-heading\">Impact statement</h3><p>It is well known that densely bound β-sheet nanocrystals within silk biopolymers are responsible for their incredible mechanical strength and stiffness. In the present study, we show that these β-sheet nanocrystals also create an ideal environment for stable carbon radicals within the silk structures. A magnetic exchange interaction among these radicals results in a stable and robust carbon-based ferromagnetism at room temperature in these polymers. These are the first ever reports of observation of room-temperature ferromagnetism in pristine spider silks. Inducing defects in these nanocrystals by applying strain on dragline silk samples leads to an enhanced saturation magnetization. A direct effect of nanocrystallite size on the ferromagnetic properties of silk was also observed. Blending magnetism in a bioinspired and metal-free protein-based biomaterial can tremendously impact biomedical applications such as nanoscale drug delivery systems, magnetic resonance imaging contrast agents, magnetic scaffolds, and artificial muscles. Our work will stimulate a new theoretical understanding of the origin of magnetism in peptide-based biomaterials with consequences in quantum biology and spintronics. Our work establishes a novel method to control the magnetic responsivity of proteins by engineering atomic defects.</p><h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"5 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sindhu Nathan worked on climate change policy during Congressional Fellowship","authors":"Elizabeth Wilson","doi":"10.1557/s43577-024-00682-0","DOIUrl":"https://doi.org/10.1557/s43577-024-00682-0","url":null,"abstract":"","PeriodicalId":18828,"journal":{"name":"Mrs Bulletin","volume":"241 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140037820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}