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Ceramics and ceramic composites for biomedical engineering applications via Direct Ink Writing: Overall scenario, advances in the improvement of mechanical and biological properties and innovations 通过直接油墨书写技术将陶瓷和陶瓷复合材料应用于生物医学工程:总体情况、在改善机械和生物特性方面的进展以及创新
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-09-11 DOI: 10.1016/j.mser.2024.100841
Vivian Inês dos Santos , Jérôme Chevalier , Márcio Celso Fredel , Bruno Henriques , Laurent Gremillard

The growing demand for personalized ceramic devices for biomedical engineering applications, with increasingly complex shapes and properties, highlights the limitations of traditional ceramic processing techniques. In recent years, increasing attention has been drawn to ceramic-based materials produced by an additive manufacturing method commonly referred to as direct ink writing (DIW) or robocasting. However, the current challenge remains the achievement of strong mechanical reliability while preserving optimal levels of biocompatibility, bioactivity and biodegradability. Hence, the present review examines the overall scenario of this field, highlighting and analyzing the primary outcomes of studies available in the literature. It also describes the most innovative approaches. Were explored pure ceramics and composites, encompassing calcium phosphates, bioactive glasses, calcium silicates, polymer-derived ceramics and functionalized materials. The review demonstrated that DIW was mostly applied for the fabrication of scaffolds intended for bone regeneration applications and that have been, more recently, capable of attaining mechanical properties in the range of cortical bone. Dense components are comprehended as well with high relative densities achieved and commendable mechanical properties in light of the densities attained. Mechanical and biological improvement strategies for the DIW method are also presented and discussed.

生物医学工程应用领域对形状和性能日益复杂的个性化陶瓷设备的需求与日俱增,这凸显了传统陶瓷加工技术的局限性。近年来,通过通常称为直接墨水写入(DIW)或机器人铸造的增材制造方法生产的陶瓷基材料受到越来越多的关注。然而,目前的挑战仍然是如何在保持最佳生物相容性、生物活性和生物降解性的同时,实现强大的机械可靠性。因此,本综述探讨了这一领域的总体情况,重点分析了现有文献中的主要研究成果。本综述还介绍了最具创新性的方法。本综述探讨了纯陶瓷和复合材料,包括磷酸钙、生物活性玻璃、硅酸钙、聚合物衍生陶瓷和功能化材料。综述表明,直接烧结法主要用于制造骨再生用支架,最近已能达到皮质骨的机械性能。此外,高密度成分也能达到较高的相对密度,并具有与所达到的密度相当的机械性能。此外,还介绍并讨论了 DIW 方法的机械和生物改进策略。
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引用次数: 0
Recent progress in high-entropy alloys for laser powder bed fusion: Design, processing, microstructure, and performance 用于激光粉末床熔化的高熵合金的最新进展:设计、加工、微观结构和性能
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-09-09 DOI: 10.1016/j.mser.2024.100834
Asker Jarlöv , Zhiguang Zhu , Weiming Ji , Shubo Gao , Zhiheng Hu , Priyanka Vivegananthan , Yujia Tian , Devesh Raju Kripalani , Haiyang Fan , Hang Li Seet , Changjun Han , Liming Tan , Feng Liu , Mui Ling Sharon Nai , Kun Zhou

Laser powder bed fusion (LPBF), as the most commercialized metal additive manufacturing technique, is tantalizing the metallurgical community owing to its capabilities of directly producing highly intricate parts with complex geometries and achieving superior properties compared to those of conventionally manufactured alloys. High-entropy alloys (HEAs) represent a class of novel materials consisting of multiple principal elements in near-equiatomic ratios, revolutionizing the alloy design concept. LPBF has been employed to fabricate HEAs in numerous attempts to improve their outstanding mechanical, physical, and chemical properties. This review systematically compares seven unique classes of LPBF-produced HEAs—the 3d transition metal HEAs, eutectic HEAs, precipitation-strengthened HEAs, refractory HEAs, metastable HEAs, interstitial HEAs, and high-entropy matrix composites—pertaining to their feedstock preparation, printability, microstructure, strengthening mechanisms, material properties, and potential applications. Additionally, the computational modeling of HEAs for LPBF is extensively discussed. This work aims to guide relevant research in the field by systematically reviewing the advancements in the design strategies employed for the successful fabrication of HEAs by LPBF.

激光粉末床熔融技术(LPBF)是目前商业化程度最高的金属添加剂制造技术,由于其能够直接制造出具有复杂几何形状的高精密零件,并且与传统制造的合金相比具有更优异的性能,因此正吸引着冶金界的目光。高熵合金(HEAs)是一类新型材料,由接近等原子比的多种主元素组成,彻底改变了合金的设计理念。为了改善高熵合金出色的机械、物理和化学性质,人们在制造高熵合金的过程中多次尝试使用 LPBF。这篇综述系统地比较了七类独特的 LPBF 制备的 HEAs--3d 过渡金属 HEAs、共晶 HEAs、沉淀强化 HEAs、难熔 HEAs、可转移 HEAs、间隙 HEAs 和高熵基复合材料--涉及它们的原料制备、可印刷性、微观结构、强化机制、材料性能和潜在应用。此外,还广泛讨论了用于 LPBF 的 HEA 计算模型。本研究旨在通过系统回顾为成功利用 LPBF 制造 HEA 而采用的设计策略方面的进展,为该领域的相关研究提供指导。
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引用次数: 0
Designing macromolecular modifiers for zinc metal batteries 为锌金属电池设计大分子改性剂
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-09-09 DOI: 10.1016/j.mser.2024.100844
Yuan Li, Lei Zhao, Hao Dang, Peiyao Dou, Youzhi Wu, Fen Ran

In recent years, aqueous zinc metal batteries have greatly intrigued scientists; however, zinc anode suffers from many issues such as dendrites, hydrogen evolution, and passivation. To address the dilemma of zinc anode, macromolecular interfacial modifiers are employed to improve the stability of zinc anode. In this review, it is summarized that macromolecular modifiers facilitate highly stable zinc anode in aqueous electrolyte. Combined with the issues of zinc anode and the characteristics of macromolecules, the advantages of macromolecules as interface modifiers are discussed. Moreover, the effects of macromolecules modified electrolyte, zinc anode, separator, and current collector on the interfacial properties of zinc anode are discussed, respectively. The current challenges and future research directions are proposed from the perspective of the application of macromolecules in zinc powder anode, the relationship between the structure of macromolecules and the deeper principle of stabilizing zinc anode, and the application of macromolecular modifiers in other metal anodes, etc.

近年来,锌金属水电池引起了科学家们的极大兴趣;然而,锌阳极存在许多问题,如枝晶、氢演化和钝化。为了解决锌阳极的难题,人们采用了大分子界面改性剂来提高锌阳极的稳定性。本综述总结了高分子改性剂可促进锌阳极在水性电解液中的高度稳定。结合锌阳极的问题和高分子的特性,讨论了高分子作为界面改性剂的优势。此外,还分别讨论了高分子改性电解质、锌阳极、分离器和集流器对锌阳极界面特性的影响。从高分子在锌粉阳极中的应用、高分子结构与稳定锌阳极深层原理的关系、高分子改性剂在其他金属阳极中的应用等方面提出了当前的挑战和未来的研究方向。
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引用次数: 0
How can cellulosic fibers enhance adhesion in engineered wood? 纤维素纤维如何增强人造木材的附着力?
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-09-06 DOI: 10.1016/j.mser.2024.100852
Anass Ait Benhamou , Abdelghani Boussetta , Mohamed Hamid Salim , Mehdi Mennani , Meriem Kasbaji , Zineb Kassab , Véronic Landry , Blaise Leopold Tardy , Antonio Pizzi , Mounir El Achaby , Amine Moubarik

Cellulosic fibers have garnered significant attention in both academic research and industry due to their appealing physicochemical properties, distinctive structural qualities, and wide-ranging applications. In the realm of wood adhesives, the utilization of cellulose has witnessed a substantial surge in the last decade. Cellulose is employed either as reinforcement in the manufacturing of various wood adhesives or as a binder for wood bonding, offering a sustainable and eco-friendly alternative to traditional adhesives. This surge in the utilization of cellulose-based wood adhesives has led to remarkable improvements in both mechanical and physical properties, contributing to enhanced wood composite materials. This review aims to provide insight into recent developments in the rapidly expanding field of cellulose-based wood adhesives, encompassing fundamental research to practical applications. The initial section offers an updated depiction of cellulose, encompassing its chemical structure, characteristics, classification, and chemical modifications, highlighting its versatility and suitability in adhesion science. The paper culminates with a comprehensive overview of its benchmarking, addressing economic and environmental aspects, and outlining prospects and future directions for sustainable wood adhesive technology. In summary, cellulose derivatives have become pivotal in enhancing wood adhesive properties while aligning with sustainability goals, making this review a valuable resource to navigate the evolving landscape of cellulose-based wood adhesives.

纤维素纤维因其诱人的物理化学特性、独特的结构品质和广泛的应用,在学术研究和工业领域都受到了极大的关注。在木材粘合剂领域,纤维素的使用在过去十年中出现了大幅增长。纤维素既可用作制造各种木材粘合剂的增强剂,也可用作木材粘合的粘合剂,为传统粘合剂提供了一种可持续的环保型替代品。纤维素基木材粘合剂的使用量激增,使其在机械和物理性能方面都有了显著改善,有助于提高木质复合材料的性能。本综述旨在深入探讨快速发展的纤维素基木材粘合剂领域的最新进展,包括基础研究和实际应用。文章的第一部分对纤维素进行了最新描述,包括其化学结构、特性、分类和化学改性,突出了其在粘合科学中的多功能性和适用性。论文最后全面概述了纤维素的基准、经济和环境方面的问题,并概述了可持续木材粘合剂技术的前景和未来发展方向。总之,纤维素衍生物在提高木材粘合剂性能的同时又符合可持续发展的目标,这使得本综述成为了解纤维素基木材粘合剂不断发展的宝贵资源。
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引用次数: 0
Dimensional upgrading of 0D silica nanospheres to 3D networking toward robust aerogels for fire resistance and low-carbon applications 从 0D 纳米二氧化硅球到 3D 网络的尺寸升级,实现用于耐火和低碳应用的坚固气凝胶
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-09-05 DOI: 10.1016/j.mser.2024.100842
Peiying Hu , Xueyan Hu , Ling Liu , Mengmeng Li , Zhiyang Zhao , Peigen Zhang , Jin Wang , ZhengMing Sun

Over 40 % of global energy consumption is attributed to thermal regulation in buildings, highlighting the imperative for low-carbon structures. Aerogel insulation materials with low thermal conductivity show promise for energy-saving buildings. However, their widespread adoption is hindered by inadequate mechanical robustness, stability, and fire resistance. Herein, inspired by plant root-soil structures, mechanically robust Poly-p-phenylene benzoxazole (PBO) nanofiber-reinforced silica aerogels (BNFSi) are designed and synthesized via a dimension-upgrading strategy. The optimized BNFSi are characterized by Compressive strength (3.2 MPa). Additionally, the aerogel demonstrates several outstanding properties, such as low thermal conductivity (27.3 mW m−1 K−1), superior flame retardancy, high mass retention rate (79.7 %), high reflectivity in the visible to near-infrared spectrum (∼ 92 %), and inherent super-hydrophobic surface with a 150.3° water contact angle, indicating self-cleaning potential. The biomimetic-designed structure resolved the inherent brittleness of the silica network while inducing fire-resistant and ideal insulating performance, thus offering a promising avenue for advancing energy-conserving buildings, aligning with the objectives of next-generation eco-conscious construction.

全球超过 40% 的能源消耗归因于建筑物的热调节,这凸显了低碳建筑的必要性。具有低导热性的气凝胶隔热材料为节能建筑带来了希望。然而,其机械坚固性、稳定性和耐火性不足阻碍了其广泛应用。本文受植物根-土壤结构的启发,通过尺寸提升策略设计并合成了机械坚固的聚亚苯基苯并恶唑(PBO)纳米纤维增强二氧化硅气凝胶(BNFSi)。优化后的 BNFSi 具有抗压强度(3.2 兆帕)。此外,气凝胶还表现出多种优异性能,如低导热系数(27.3 mW m-1 K-1)、优异的阻燃性、高保质率(79.7%)、可见光至近红外光谱的高反射率(∼ 92%),以及固有的超疏水表面(水接触角为 150.3°),这表明气凝胶具有自清洁潜力。仿生设计的结构解决了二氧化硅网络固有的脆性问题,同时具有防火和理想的隔热性能,从而为推进节能建筑提供了一条大有可为的途径,符合下一代生态意识建筑的目标。
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引用次数: 0
Materials and design strategies for the electrochemical detection of antineoplastic drugs: Progress and perspectives 抗肿瘤药物电化学检测的材料和设计策略:进展与展望
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-09-02 DOI: 10.1016/j.mser.2024.100840
K Theyagarajan , Vadakke Purakkal Sruthi , Jitendra Satija , Sellappan Senthilkumar , Young-Joon Kim

Due to the high prevalence of cancer in modern societies, it is crucial to monitor and scrutinize chemotherapeutic medications closely and precisely. Administering antineoplastic drugs to suppress the growth or destroy cancer cells is one of the most effective treatments, which is widely practiced at present. These anticancer drugs are designed to target cancer cells, whereas in a few cases, they could also become toxic to non-cancerous cells, posing risks not only to patients but also to healthcare workers and the soil and aquatic environments. Therefore, the concentrations of these drugs need to be quantified precisely at their nano/picomolar levels to attain better efficacy of the intended treatment, safeguard the patients from adverse effects, and protect the environment. Among various methodologies, electrochemical techniques are highly appreciated owing to their high sensitivity and selectivity, low cost, ease of operation, rapid response, low sample requirement, and ease of miniaturization. Even though hundreds of sensors have been reported for the electrochemical detection of these antineoplastic drugs, only a few reviews highlighted their prominence. While certain aspects of the electrochemistry of antineoplastic drugs can be found in those reviews, many important aspects are still inadequately addressed and remain significantly behind the current state of the art. Thus, we intend to bridge this gap by systematically reviewing the electrochemical sensors developed for the selective detection of various antineoplastic drugs. Significant emphasis has been given to the electrode materials, fabrication procedures, and sensing strategies, as well as a comparison of their analytical performances and evaluation of their advantages and limitations. This review would pave a new path for developing wearable, continuous monitoring point-of-care systems for the on-site and online sensing of multiple chemotherapeutic drugs, ensuring the livability of cancer patients by attaining maximum drug efficacy and minimizing or eradicating their adverse effects on humanity and the environment.

由于癌症在现代社会中的高发病率,对化疗药物进行严密和精确的监测和审查至关重要。使用抗肿瘤药物来抑制癌细胞的生长或消灭癌细胞,是目前广泛使用的最有效的治疗方法之一。这些抗癌药物是针对癌细胞设计的,但在少数情况下,它们也会对非癌细胞产生毒性,不仅对病人,而且对医护人员、土壤和水环境造成危害。因此,需要对这些药物的浓度进行纳米/皮摩尔级的精确量化,以提高预期疗效,保护患者免受不良影响,并保护环境。在各种方法中,电化学技术因其灵敏度高、选择性强、成本低、操作简便、反应迅速、样品要求低以及易于微型化等优点而备受青睐。尽管已经报道了数百种用于电化学检测这些抗肿瘤药物的传感器,但只有少数综述强调了它们的重要性。虽然抗肿瘤药物电化学的某些方面可以在这些综述中找到,但许多重要方面仍未得到充分讨论,并且仍然远远落后于当前的技术水平。因此,我们打算通过系统回顾为选择性检测各种抗肿瘤药物而开发的电化学传感器来弥补这一差距。我们将重点放在电极材料、制造程序和传感策略上,并对其分析性能进行比较,评估其优势和局限性。这篇综述将为开发用于现场和在线检测多种化疗药物的可穿戴、连续监测护理点系统铺平一条新的道路,通过实现最大的药物疗效来确保癌症患者的生存,并最大限度地减少或消除其对人类和环境的不利影响。
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引用次数: 0
Progress in the use of MoS2-based composites for microwave absorption 利用基于 MoS2 的复合材料进行微波吸收的研究进展
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-08-31 DOI: 10.1016/j.mser.2024.100838
Hongpeng Wang, Juan Feng, Hongna Xing, Mingming Lv, Yan Zong, Xiuhong Zhu, Xinghua Li, Xinliang Zheng

The emergence of the 5 G technology and universal smart electron devices urgently call for the exploration of highly efficient microwave absorption materials. MoS2 is a potential dielectric microwave absorption material that offers the benefits of diverse morphologies/structures, adjustable bandgap, easy defects production, controllable electrical conductivity and high stability, but suffers from single dielectric loss capacity and impedance mismatching. Structural regulations and hybridization with foreign components have been extensively used to improve the microwave absorption performance of MoS2. This review introduces the characteristics and microwave absorption mechanisms of MoS2 nanomaterials for a comprehensive analysis, and systematically emphasizes the related key issues by summarizing progress of MoS2-based microwave absorption materials. Three strategies are considered, namely (1) structural regulation of MoS2 monocomponent via the control of morphology, heteroatom doping, defects and phases; (2) loss mechanism regulation of binary MoS2-based composites via hybridization with other dielectric materials (e.g., carbon, MXene and polymer) or magnetic materials (e.g., ferrites and magnetic metals/alloys); (3) realization of multicomponent MoS2-based composites with multidimensional hierarchical architectures using one-, two- and three-dimensional structures. Micro/nanostructure regulation, hybridization with foreign material and architectural design are discussed as the methods of controlling the loss mechanisms, impedance matching and microwave absorption performance of MoS2-based composites. Finally, the ongoing challenges and future opportunities are prospected to surmount the current barriers and provide forward-looking guidance for the exploration of novel highly efficient MoS2-based microwave absorption materials.

5 G 技术和通用智能电子设备的出现迫切需要探索高效微波吸收材料。MoS2 是一种潜在的介电微波吸收材料,具有形貌/结构多样、带隙可调、缺陷易制、导电率可控、稳定性高等优点,但存在介电损耗能力单一、阻抗失配等问题。为了改善 MoS2 的微波吸收性能,人们广泛采用了结构调整和与外来成分杂化的方法。本综述介绍了 MoS2 纳米材料的特性和微波吸收机理,对其进行了全面分析,并通过总结 MoS2 基微波吸收材料的研究进展,系统地强调了相关的关键问题。研究考虑了三种策略,即:(1)通过对形貌、杂原子掺杂、缺陷和相的控制来调节 MoS2 单组分的结构;(2)通过与其他介电材料(如碳、MXene 和聚合物)或磁性材料(如铁氧体和磁性金属/合金)杂化来调节二元 MoS2 基复合材料的损耗机制;(3)利用一维、二维和三维结构实现多组分 MoS2 基复合材料的多维分层结构。讨论了微/纳米结构调节、与外来材料杂化和结构设计作为控制基于 MoS2 的复合材料的损耗机制、阻抗匹配和微波吸收性能的方法。最后,展望了当前的挑战和未来的机遇,以克服当前的障碍,为探索新型高效 MoS2 基微波吸收材料提供前瞻性指导。
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引用次数: 0
Integration of Ag-based threshold switching devices in silicon microchips 在硅微型芯片中集成银基阈值开关器件
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-08-29 DOI: 10.1016/j.mser.2024.100837
Osamah Alharbi , Sebastian Pazos , Kaichen Zhu , Fernando Aguirre , Yue Yuan , Xinyi Li , Huaqiang Wu , Mario Lanza

Threshold-type resistive switching (RS) is an essential electronic behavior in many types of integrated circuits and can be exploited in multiple applications, such as leaky integrate-and-fire neurons for artificial neural networks (ANNs). Many research articles have shown that metal/insulator/metal (MIM) devices using Ag electrodes exhibit stable threshold-type RS, but all of them presented large devices (>1 µm2) fabricated on unfunctional SiO2/Si substrates. In this article, for the first time we integrate Ag-based threshold-type RS devices at the back-end-of-line interconnections of silicon microchips. The insulator used is multilayer hexagonal boron nitride (h-BN), and the size of the devices is ∼0.05 µm2. The devices can switch between a high resistive state (HRS) and a low resistive state (LRS) without the need of any forming process, and we observe a high endurance over 1 million cycles over multiple devices. By performing circuit simulation using SPICE software, we confirm that this electrical behavior is suitable for being used as leaky integrate-and-fire electronic neuron in spiking neural networks for image recognition, and the h-BN artificial neurons operate correctly for 94 % of the images presented. Our study represents a significant advancement towards the integration of Ag-based threshold-type RS devices in silicon microchips.

阈值型电阻开关(RS)是多种类型集成电路中的一种基本电子行为,可在多种应用中加以利用,例如人工神经网络(ANN)中的漏集射神经元。许多研究文章表明,使用银电极的金属/绝缘体/金属(MIM)器件表现出稳定的阈值型 RS,但所有这些文章介绍的都是在非功能性二氧化硅/硅衬底上制造的大型器件(1 µm2)。在本文中,我们首次将基于银的阈值型 RS 器件集成到硅微型芯片的后端互连器件中。使用的绝缘体是多层六方氮化硼(h-BN),器件的尺寸为 ∼ 0.05 µm2。这些器件可以在高阻态(HRS)和低阻态(LRS)之间切换,无需任何成型工艺,而且我们观察到多个器件的耐用性超过 100 万次。通过使用 SPICE 软件进行电路仿真,我们证实这种电气行为适合用作用于图像识别的尖峰神经网络中的漏电积分-发射电子神经元,而且 h-BN 人工神经元在 94% 的图像中都能正确工作。我们的研究标志着在硅微型芯片中集成基于 Ag 的阈值型 RS 器件方面取得了重大进展。
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引用次数: 0
Room-temperature polarization-sensitive photodetectors: Materials, device physics, and applications 室温偏振敏感光电探测器:材料、器件物理和应用
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-08-29 DOI: 10.1016/j.mser.2024.100839
Xin Du , Haijuan Wu , Zhenghan Peng , Chao Tan , Lei Yang , Zegao Wang

The acquisition of multi-dimensional optical information such as intensity, wavelength and polarization provides new ideas for improving the performance of photodetector to meet the efficient recognition of targets in complex environments in the future. When light interacts with matter, the change in the polarization state of light will reflect the material composition, surface morphology, etc. It has important research value and application prospects in target recognition, remote sensing, quantum communication and biomedical. Traditional polarization-sensitive photodetection requires the combination of complex optical devices such as polarizers, wave-plates, and lenses to regulate the polarization and wave-front of light waves, resulting in complex detection systems, high power consumption, and low integration. Recently, the non-complementarity of extra-nuclear electron in transition-metal dichalcogenides leads to an increase in chemical bond complexity and a decrease in in-plane symmetric elements, making them sensitive to polarized light. It is expected to break away from the traditional design concept of complex polarization imaging systems and explore new polarization detection technologies. However, the polarization-sensitive photodetector is still of great challenge. In this study, we first explore the principles of polarized light generation and detection. Next, we analyze the novel polarization-sensitive materials by classifying them into three categories: geometrically anisotropic, intrinsically anisotropic, and heterostructure materials. On this basis, we outline the performance of polarization detector devices based on these three classes of materials and present some of the performance enhancement methods that have been summarized and discussed. Finally, we explore the prevailing challenges and prospects, offering insights into the potential trajectory of advancements within this burgeoning field.

获取强度、波长和偏振等多维光学信息为提高光电探测器的性能提供了新思路,以满足未来在复杂环境中高效识别目标的需要。当光与物质相互作用时,光的偏振态变化会反映出物质的成分、表面形态等。它在目标识别、遥感、量子通信和生物医学等领域具有重要的研究价值和应用前景。传统的偏振敏感光探测需要结合偏振片、波峰板、透镜等复杂的光学器件来调节光波的偏振和波前,导致探测系统复杂、功耗高、集成度低。最近,过渡金属二钴化物中核外电子的不互补性导致化学键复杂性增加,面内对称元素减少,使其对偏振光变得敏感。这有望打破复杂偏振成像系统的传统设计理念,探索新的偏振检测技术。然而,偏振敏感光电探测器仍然是一个巨大的挑战。在本研究中,我们首先探讨了偏振光的产生和检测原理。接着,我们分析了新型偏振敏感材料,将其分为三类:各向异性几何材料、各向异性本征材料和异质结构材料。在此基础上,我们概述了基于这三类材料的偏振检测器设备的性能,并介绍了已总结和讨论过的一些性能增强方法。最后,我们探讨了当前的挑战和前景,为这一新兴领域的潜在发展轨迹提供了见解。
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引用次数: 0
Materials vs digits: A review of embedded anti-counterfeiting fingerprints in three-dimensional printing 材料与数字:三维印刷中的嵌入式防伪指纹评述
IF 31.6 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2024-08-24 DOI: 10.1016/j.mser.2024.100836
Jiangping Yuan , Yumeng Zhou , Guangxue Chen , Kaida Xiao , Jian Lu

Ongoing breakthroughs in the development of functional printing materials are leading to rapid and widespread industrialization of three-dimensional (3D) printing, accompanied by increasingly urgent requirements for methods to prevent problems such as tampering, counterfeiting and destruction of 3D printed products. Anti-counterfeiting of 2D printed products has a long history, but its methods are not suitable for application to 3D printed products, as the latter products have embedding that is substantially different to that of the former products. This review article analyses anti-counterfeiting techniques for 2D printed products, proposes two embedding strategies for 3D printing based on material-responsive properties and 3D digital information, and summarizes the progress and performance of the corresponding anti-counterfeiting methods. It is shown that among the embedded anti-counterfeiting methods that exploit the responsive properties of materials, methods based on optical properties, spectral properties and deformation properties of 3D printing materials are the focus of research on embedding anti-counterfeiting materials into 3D printed objects. In addition, it is demonstrated that state-of-the-art embedding-based anti-counterfeiting methods use 3D digital information interactions and depend on 3D digital watermarks, 3D identification codes and radio-frequency tagging. Finally, a detailed discussion is provided on the generation, integration, extension, detection and prediction of embedded security features that can be printed synchronously with a functional structure. This offers a unique perspective on standardization of embedding-based anti-counterfeiting methods used in 3D printing.

功能性打印材料的开发不断取得突破,导致三维(3D)打印的快速和广泛产业化,与此同时,对防止 3D打印产品被篡改、伪造和破坏等问题的方法的要求也日益迫切。二维打印产品的防伪技术由来已久,但其方法并不适用于三维打印产品,因为三维打印产品的嵌入方式与二维打印产品有很大不同。这篇综述文章分析了二维打印产品的防伪技术,提出了基于材料响应特性和三维数字信息的两种三维打印嵌入策略,并总结了相应防伪方法的进展和性能。研究表明,在利用材料响应特性的嵌入式防伪方法中,基于 3D 打印材料的光学特性、光谱特性和变形特性的方法是将防伪材料嵌入 3D 打印对象的研究重点。此外,还证明了最先进的基于嵌入的防伪方法使用三维数字信息交互,并依赖于三维数字水印、三维识别码和射频标签。最后,详细讨论了可与功能结构同步打印的嵌入式防伪特征的生成、集成、扩展、检测和预测。这为三维打印中使用的基于嵌入的防伪方法的标准化提供了一个独特的视角。
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Materials Science and Engineering: R: Reports
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