Nano-Micro Letters最新文献

英文中文

p-Type Two-Dimensional Semiconductors: From Materials Preparation to Electronic Applications p型二维半导体：从材料制备到电子应用。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-18 DOI: 10.1007/s40820-023-01211-5

Lei Tang, Jingyun Zou

Two-dimensional (2D) materials are regarded as promising candidates in many applications, including electronics and optoelectronics, because of their superior properties, including atomic-level thickness, tunable bandgaps, large specific surface area, and high carrier mobility. In order to bring 2D materials from the laboratory to industrialized applications, materials preparation is the first prerequisite. Compared to the n-type analogs, the family of p-type 2D semiconductors is relatively small, which limits the broad integration of 2D semiconductors in practical applications such as complementary logic circuits. So far, many efforts have been made in the preparation of p-type 2D semiconductors. In this review, we overview recent progresses achieved in the preparation of p-type 2D semiconductors and highlight some promising methods to realize their controllable preparation by following both the top–down and bottom–up strategies. Then, we summarize some significant application of p-type 2D semiconductors in electronic and optoelectronic devices and their superiorities. In end, we conclude the challenges existed in this field and propose the potential opportunities in aspects from the discovery of novel p-type 2D semiconductors, their controlled mass preparation, compatible engineering with silicon production line, high-κ dielectric materials, to integration and applications of p-type 2D semiconductors and their heterostructures in electronic and optoelectronic devices. Overall, we believe that this review will guide the design of preparation systems to fulfill the controllable growth of p-type 2D semiconductors with high quality and thus lay the foundations for their potential application in electronics and optoelectronics.

二维（2D）材料因其优异的性能，包括原子级厚度、可调带隙、大比表面积和高载流子迁移率，在包括电子学和光电子在内的许多应用中被认为是有前途的候选者。为了将2D材料从实验室推向工业化应用，材料制备是首要前提。与n型类似物相比，p型2D半导体家族相对较小，这限制了2D半导体在互补逻辑电路等实际应用中的广泛集成。到目前为止，在制备p型2D半导体方面已经做出了许多努力。在这篇综述中，我们概述了在制备p型2D半导体方面取得的最新进展，并强调了一些有前景的方法，通过遵循自上而下和自下而上的策略来实现其可控制备。然后，我们总结了p型二维半导体在电子和光电子器件中的一些重要应用及其优势。最后，我们总结了该领域存在的挑战，并从发现新型p型2D半导体、其可控批量制备、与硅生产线的兼容工程、高κ介电材料、，涉及p型2D半导体及其异质结构在电子和光电子器件中的集成和应用。总的来说，我们相信这篇综述将指导制备系统的设计，以实现高质量的p型2D半导体的可控生长，从而为其在电子和光电子领域的潜在应用奠定基础。

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引用次数: 0

NH3-Induced In Situ Etching Strategy Derived 3D-Interconnected Porous MXene/Carbon Dots Films for High Performance Flexible Supercapacitors NH3诱导原位蚀刻策略衍生用于高性能柔性超级电容器的3D互连多孔MXene/碳点薄膜。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-18 DOI: 10.1007/s40820-023-01204-4

Yongbin Wang, Ningjun Chen, Bin Zhou, Xuefeng Zhou, Ben Pu, Jia Bai, Qi Tang, Yan Liu, Weiqing Yang

Highlights

Porous MXene (p-MC) films with 3D-interconnected ion transmission paths are constructed by NH₃-induced in situ etching strategy.
The flexible p-MC film electrodes exhibit a superior capacitance of 688.9 F g⁻¹ with a good rate capability.
The as-assembled p-MC solid-state flexible supercapacitors reveal superior electrochemical performance (99.7 F g⁻¹ at 1 A g⁻¹) and excellent flexibility.

2D MXene（Ti3CNTx）因其金属导电性、超高电容性和优异的柔韧性而被认为是最有前途的柔性超级电容器电极材料。然而，它在电极制造过程中存在严重的重新堆积问题，限制了离子传输动力学和离子在电极中的可及性，特别是在垂直于电极表面的方向上。在此，我们报道了一种NH3诱导的原位蚀刻策略，以制备用于高性能柔性超级电容器的3D互连多孔MXene/碳点（p-MC）膜。预插层碳点（CDs）首先防止MXene的重新堆积，从而暴露出更多的内部电化学活性位点。部分分解的CDs产生NH3，用于向3D互连p-MC膜原位蚀刻MXene纳米片。得益于结构优点和3D互连的离子传输通道，p-MC膜电极实现了优异的重量电容（在2A g-1下为688.9F g-1）和优异的倍率性能。此外，将优化后的p-MC电极组装成具有高能量密度和优异循环稳定性的不对称固态柔性超级电容器，展示了p-MC电极在实际应用中的巨大前景。

引用次数: 0

Fast and Stable Zinc Anode-Based Electrochromic Displays Enabled by Bimetallically Doped Vanadate and Aqueous Zn2+/Na+ Hybrid Electrolytes 双金属掺杂钒酸盐和水性Zn2+/Na+混合电解质实现的快速稳定的锌阳极电致变色显示器。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-17 DOI: 10.1007/s40820-023-01209-z

Zhaoyang Song, Bin Wang, Wu Zhang, Qianqian Zhu, Abdulhakem Y. Elezzabi, Linhua Liu, William W. Yu, Haizeng Li

Highlights

La³⁺/Na⁺ bimetallically doped vanadate, designed for the first time, is promising in many electrochemical applications (e.g., batteries, electrochromics).
This is the first report of electrochromic displays employing bimetallically doped vanadate.
It is demonstrated for the first time that zinc dendrites and vanadate dissolution are significantly inhibited by employing an aqueous hybrid Zn²⁺/Na⁺ electrolyte.

钒酸盐是一类最有前途的显示器电致变色材料，具有多色性。然而，最近报道的钒酸盐的缓慢转换时间和钒酸盐溶解问题严重阻碍了其多样化的实际应用。在此，开发了新的策略来设计具有快速切换时间的电化学稳定的钒酸盐。我们发现，通过在V3O8中间层中引入钠和镧离子，中间层间距大大加宽，这促进了阳离子的传输并增强了电化学动力学。此外，设计了Zn2+/Na+混合电解质，以抑制钒酸盐的溶解，同时显著加速电化学动力学。因此，与任何报道的锌钒酸盐电致变色显示器相比，我们的电致变色显示产生了最快的切换时间。可以预见，具有视频速度切换的稳定的基于钒酸盐的电致变色显示器正在近距离出现。

引用次数: 0

Temperature-Arousing Self-Powered Fire Warning E-Textile Based on p–n Segment Coaxial Aerogel Fibers for Active Fire Protection in Firefighting Clothing 基于p-n段同轴气凝胶纤维的温度引发自供电火灾报警电子灭火器，用于消防服的主动防火。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-13 DOI: 10.1007/s40820-023-01200-8

Hualing He, Yi Qin, Zhenyu Zhu, Qing Jiang, Shengnan Ouyang, Yuhang Wan, Xueru Qu, Jie Xu, Zhicai Yu

Highlights

The p–n segment thermoelectric aerogel fiber was fabricated through an alternating coaxial wet-spinning strategy.
Resultant alternating p–n segment thermoelectric fiber was electrically connected in series (two p–n pairs with a length of 3 cm) with an outstanding electrical conductivity of 23.76 S m⁻¹.
Thermoelectric textile-based self-powered fire warning electronics exhibited sensitivity (trigger time within 1.43 s) and repeatable temperature sensing performance for firefighting clothing.

消防防护服是消防员最大限度减少皮肤烧伤、确保消防作业和救援任务安全的重要防护装备。最近，人们越来越关注的是开发可结合到消防服中的自供电火灾报警材料，以在消防服着火之前为消防员提供主动消防保护。然而，简单地设计和制造具有动态表面适应性和透气性的基于热电（TE）纺织品（TET）的火灾报警电子产品仍然是一个挑战。在这里，我们开发了一种交替同轴湿法纺丝策略，以n型Ti3C2Tx MXene和p型MXene/SWCNT-COOH为核心材料，以坚韧的芳纶纳米纤维为保护壳，连续生产交替的p/n型TE气凝胶纤维，同时确保了TE发电的灵活性和高效性。利用这种交替的p/n型TE纤维，通过将交替的p-n段TE纤维缝合到芳纶织物中，成功地制备了具有高机械稳定性和耐磨性的基于TET的自供电火灾报警传感器。结果表明，在300°C的温差下，包含50对p-n对的基于TET的火灾报警电子设备产生7.5 mV的开路电压，功率密度为119.79 nW cm-2。然后，基于TE电压和温度之间的线性关系，将输出电压信号计算为相应的消防服表面温度。进一步展示了火灾报警响应时间和阻燃性能。这种自供电的火灾报警电子设备是真正的纺织品，具有透气性和与身体运动的兼容性，证明了它们在消防服中的潜在应用。

引用次数: 0

Advances on Axial Coordination Design of Single-Atom Catalysts for Energy Electrocatalysis: A Review 用于能量电催化的单原子催化剂轴向配位设计进展：综述。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-13 DOI: 10.1007/s40820-023-01196-1

Linjie Zhang, Na Jin, Yibing Yang, Xiao-Yong Miao, Hua Wang, Jun Luo, Lili Han

Single-atom catalysts (SACs) have garnered increasingly growing attention in renewable energy scenarios, especially in electrocatalysis due to their unique high efficiency of atom utilization and flexible electronic structure adjustability. The intensive efforts towards the rational design and synthesis of SACs with versatile local configurations have significantly accelerated the development of efficient and sustainable electrocatalysts for a wide range of electrochemical applications. As an emergent coordination avenue, intentionally breaking the planar symmetry of SACs by adding ligands in the axial direction of metal single atoms offers a novel approach for the tuning of both geometric and electronic structures, thereby enhancing electrocatalytic performance at active sites. In this review, we briefly outline the burgeoning research topic of axially coordinated SACs and provide a comprehensive summary of the recent advances in their synthetic strategies and electrocatalytic applications. Besides, the challenges and outlooks in this research field have also been emphasized. The present review provides an in-depth and comprehensive understanding of the axial coordination design of SACs, which could bring new perspectives and solutions for fine regulation of the electronic structures of SACs catering to high-performing energy electrocatalysis.

单原子催化剂（SAC）由于其独特的原子利用效率和灵活的电子结构可调性，在可再生能源领域，特别是在电催化领域，越来越受到关注。合理设计和合成具有多功能局部构型的SAC的密集努力大大加速了用于广泛电化学应用的高效和可持续的电催化剂的开发。作为一种新兴的配位途径，通过在金属单原子的轴向添加配体来有意打破SAC的平面对称性，为调节几何结构和电子结构提供了一种新的方法，从而提高活性位点的电催化性能。在这篇综述中，我们简要概述了轴向配位SAC这一新兴的研究主题，并对其合成策略和电催化应用的最新进展进行了全面总结。此外，还强调了该研究领域的挑战和前景。本综述对SAC的轴向配位设计提供了深入而全面的理解，这可能为精细调节SAC的电子结构提供新的视角和解决方案，以适应高效能电催化。

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引用次数: 0

Built-In Electric Field-Driven Ultrahigh-Rate K-Ion Storage via Heterostructure Engineering of Dual Tellurides Integrated with Ti3C2Tx MXene 通过双碲化物与Ti3C2Tx MXene集成的异质结构工程实现内置电场驱动的超高速率K离子存储。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-13 DOI: 10.1007/s40820-023-01202-6

Long Pan, Rongxiang Hu, Yuan Zhang, Dawei Sha, Xin Cao, Zhuoran Li, Yonggui Zhao, Jiangxiang Ding, Yaping Wang, ZhengMing Sun

Highlights

Heterostructure engineering is proposed to construct CoTe₂/ZnTe heterostructures with built-in electric field.
Conductive and elastic Ti₃C₂T_x MXene is introduced to improve the conductivity and alleviate the volume change of CoTe₂/ZnTe upon cycling.
The resulting CoTe₂/ZnTe/Ti₃C₂T_x (CZT) demonstrates outstanding rate capability (137.0 mAh g⁻¹ at 10 A g⁻¹) and cycling stability (175.3 mAh g⁻¹ after 4000 cycles at 3.0 A g⁻¹). Moreover, the CZT-based full cells demonstrate excellent energy density (220.2 Wh kg⁻¹) and power density (837.2 W kg⁻¹).

开发具有快速K+扩散的高速率阳极材料对开发先进的钾离子电池（KIBs）很有吸引力，但尚未实现。在此，提出了异质结构工程来构建双过渡金属碲化物（CoTe2/ZnTe），其锚定在二维（2D）Ti3C2Tx MXene纳米片上。各种理论建模和实验结果表明，异质结构工程可以调节CoTe2/ZnTe界面的电子结构，改善K+的扩散和吸附。此外，CoTe2/ZnTe之间的不同功函数在CoTe2/ZnTe界面处诱导了强大的内置电场，提供了促进电荷传输的强大驱动力。此外，具有导电性和弹性的Ti3C2Tx可以有效地提高电极的导电性，并缓解CoTe2/ZnTe异质结构在循环时的体积变化。由于这些优点，所得到的CoTe2/ZnTe/Ti3C2Tx（CZT）表现出优异的倍率性能（在10A g-1下为137.0mAh g-1）和循环稳定性（在3.0A g-1下4000次循环后为175.3mAh g-1，具有89.4%的高容量保持率），基于CZT的全电池表现出高能量密度（220.2 Wh kg-1）和高功率密度（837.2 W kg-1）。这项工作通过集成异质结构工程和2D材料纳米复合，为下一代KIB设计先进的高速率阳极材料提供了一种通用而有效的策略。

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引用次数: 0

Machine Learning-Assisted Low-Dimensional Electrocatalysts Design for Hydrogen Evolution Reaction 用于析氢反应的机器学习辅助低维电催化剂设计。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-13 DOI: 10.1007/s40820-023-01192-5

Jin Li, Naiteng Wu, Jian Zhang, Hong-Hui Wu, Kunming Pan, Yingxue Wang, Guilong Liu, Xianming Liu, Zhenpeng Yao, Qiaobao Zhang

Efficient electrocatalysts are crucial for hydrogen generation from electrolyzing water. Nevertheless, the conventional "trial and error" method for producing advanced electrocatalysts is not only cost-ineffective but also time-consuming and labor-intensive. Fortunately, the advancement of machine learning brings new opportunities for electrocatalysts discovery and design. By analyzing experimental and theoretical data, machine learning can effectively predict their hydrogen evolution reaction (HER) performance. This review summarizes recent developments in machine learning for low-dimensional electrocatalysts, including zero-dimension nanoparticles and nanoclusters, one-dimensional nanotubes and nanowires, two-dimensional nanosheets, as well as other electrocatalysts. In particular, the effects of descriptors and algorithms on screening low-dimensional electrocatalysts and investigating their HER performance are highlighted. Finally, the future directions and perspectives for machine learning in electrocatalysis are discussed, emphasizing the potential for machine learning to accelerate electrocatalyst discovery, optimize their performance, and provide new insights into electrocatalytic mechanisms. Overall, this work offers an in-depth understanding of the current state of machine learning in electrocatalysis and its potential for future research.

高效的电催化剂对于电解水制氢至关重要。然而，生产先进电催化剂的传统“试错”方法不仅成本低，而且耗时耗力。幸运的是，机器学习的进步为电催化剂的发现和设计带来了新的机遇。通过分析实验和理论数据，机器学习可以有效地预测它们的析氢反应（HER）性能。这篇综述总结了低维电催化剂的机器学习的最新进展，包括零维纳米颗粒和纳米团簇、一维纳米管和纳米线、二维纳米片以及其他电催化剂。特别强调了描述符和算法在筛选低维电催化剂和研究其HER性能方面的作用。最后，讨论了机器学习在电催化中的未来方向和前景，强调了机器学习加速电催化剂发现、优化其性能以及为电催化机制提供新见解的潜力。总的来说，这项工作深入了解了电催化中机器学习的现状及其未来研究的潜力。

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引用次数: 0

Correction: Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy 修正：用无边界剪切法测量二维片的单畴液晶。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-13 DOI: 10.1007/s40820-023-01173-8

Min Cao, Senping Liu, Qingli Zhu, Ya Wang, Jingyu Ma, Zeshen Li, Dan Chang, Enhui Zhu, Xin Ming, Florian Puchtler, Josef Breu, Ziliang Wu, Yingjun Liu, Yanqiu Jiang, Zhen Xu, Chao Gao

引用次数: 0

Initiating Binary Metal Oxides Microcubes Electromagnetic Wave Absorber Toward Ultrabroad Absorption Bandwidth Through Interfacial and Defects Modulation 通过界面和缺陷调制引发二元金属氧化物微管电磁波吸收体的超宽吸收带宽。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-09 DOI: 10.1007/s40820-023-01197-0

Fushan Li, Nannan Wu, Hideo Kimura, Yuan Wang, Ben Bin Xu, Ding Wang, Yifan Li, Hassan Algadi, Zhanhu Guo, Wei Du, Chuanxin Hou

Highlights

3D cubic hollow core–shell NiCo₂O₄@C composites were synthesized.
Oxygen vacancies were introduced into the prepared composites.
Ultrabroad effective absorption bandwidth of 12.48 GHz was obtained.
The absorption performance mechanism of NiCo₂O₄/C composites was investigated.

钴镍双金属氧化物（NiCo2O4）以其可控的形貌、高温、耐腐蚀性和强的电磁波吸收能力而受到广泛关注。然而，对于NiCo2O4基吸收剂来说，加宽吸收带宽仍然是一个巨大的挑战。在这里NiCo2O4@C采用简单的牺牲模板策略制备了具有中空结构的核壳微管。三维（3D）立方体空心核壳的氧空位浓度和形貌NiCo2O4@C通过调节煅烧温度，有效地优化了骨架。专门设计的3D框架结构便于入射电磁波的多次反射，并在多个组件之间提供了丰富的界面，产生了显著的界面极化损耗。氧空位引起的偶极极化可以进一步增强对入射电磁波的衰减能力。优化后的NiCo2O4@C空心微管在厚度为3.0mm的情况下，在8.4GHz下表现出优异的EMW吸收能力，最小RL（RLmin）为-84.45dB。此外，获得了高达12.48GHz（5.52-18GHz）的超宽有效吸收带宽（EAB）。这项工作被认为为合成具有优异EMW吸收能力的高性能钴镍双金属氧化物，特别是在拓宽有效吸收带宽方面开辟了道路。

引用次数: 0

Humanoid Intelligent Display Platform for Audiovisual Interaction and Sound Identification 用于视听交互和声音识别的仿人智能显示平台。

IF 26.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nano-Micro Letters

Pub Date : 2023-10-09 DOI: 10.1007/s40820-023-01199-y

Yang Wang, Wenli Gao, Shuo Yang, Qiaolin Chen, Chao Ye, Hao Wang, Qiang Zhang, Jing Ren, Zhijun Ning, Xin Chen, Zhengzhong Shao, Jian Li, Yifan Liu, Shengjie Ling

This study proposes a rational strategy for the design, fabrication and system integration of the humanoid intelligent display platform (HIDP) to meet the requirements of highly humanized mechanical properties and intelligence for human–machine interfaces. The platform's sandwich structure comprises a middle light-emitting layer and surface electrodes, which consists of silicon elastomer embedded with phosphor and silk fibroin ionoelastomer, respectively. Both materials are highly stretchable and resilient, endowing the HIDP with skin-like mechanical properties and applicability in various extreme environments and complex mechanical stimulations. Furthermore, by establishing the numerical correlation between the amplitude change of animal sounds and the brightness variation, the HIDP realizes audiovisual interaction and successful identification of animal species with the aid of Internet of Things (IoT) and machine learning techniques. The accuracy of species identification reaches about 100% for 200 rounds of random testing. Additionally, the HIDP can recognize animal species and their corresponding frequencies by analyzing sound characteristics, displaying real-time results with an accuracy of approximately 99% and 93%, respectively. In sum, this study offers a rational route to designing intelligent display devices for audiovisual interaction, which can expedite the application of smart display devices in human–machine interaction, soft robotics, wearable sound-vision system and medical devices for hearing-impaired patients.

本研究提出了一种合理的仿人智能显示平台的设计、制造和系统集成策略，以满足人机界面高度人性化的机械性能和智能化的要求。该平台的夹层结构包括中间发光层和表面电极，表面电极分别由嵌入磷光体的硅弹性体和丝素蛋白离子弹性体组成。这两种材料都具有高度的可拉伸性和弹性，赋予HIDP类似皮肤的机械性能，并适用于各种极端环境和复杂的机械刺激。此外，通过建立动物声音的幅度变化和亮度变化之间的数字相关性，HIDP借助物联网和机器学习技术实现了动物物种的视听交互和成功识别。经过200轮随机测试，物种识别的准确率达到100%左右。此外，HIDP可以通过分析声音特征来识别动物物种及其相应的频率，显示实时结果的准确率分别约为99%和93%。总之，本研究为设计用于视听交互的智能显示设备提供了一条合理的途径，可以加快智能显示设备在人机交互、软机器人、可穿戴声视觉系统和听障患者医疗设备中的应用。

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引用次数: 0

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