Materials Futures最新文献_第2页

Origin of Off-centering effect and the Influence on Heat Transport in Thermoelectrics 偏心效应的起源及其对热电中热传导的影响

Materials Futures Pub Date : 2024-01-04 DOI: 10.1088/2752-5724/ad1ac0

Hongyao Xie, Li-Dong Zhao

引用次数: 0

Flexible UV Detectors Based on in-situ Hydrogen Doped Amorphous Ga2O3 with High Photo-to-dark Current Ratio 基于原位掺氢非晶 Ga2O3 的柔性紫外线检测器具有高光暗流比

Materials Futures Pub Date : 2024-01-02 DOI: 10.1088/2752-5724/ad19e1

Yanxin Sui, Huili Liang, Wenxing Huo, Xiaozhi Zhan, Tao Zhu, Z. Mei

{"title":"Flexible UV Detectors Based on in-situ Hydrogen Doped Amorphous Ga2O3 with High Photo-to-dark Current Ratio","authors":"Yanxin Sui, Huili Liang, Wenxing Huo, Xiaozhi Zhan, Tao Zhu, Z. Mei","doi":"10.1088/2752-5724/ad19e1","DOIUrl":"https://doi.org/10.1088/2752-5724/ad19e1","url":null,"abstract":"\u0000 Amorphous Ga2O3 (a-Ga2O3) has been attracting more and more attention due to its unique merits such as wide bandgap (~4.9 eV), low growth temperature, large-scale uniformity, low cost and energy efficient, making it a powerful competitor in flexible deep ultraviolet (UV) photodetection. Although the responsivity of the ever-reported a-Ga2O3 UV photodetectors (PDs) is usually in the level of hundreds of A/W, it is often accompanied by a large dark current due to the presence of abundant oxygen vacancy (VO) defects, which severely limits the possibility to detect weak signals and achieve versatile applications. In this work, the VO defects in a-Ga2O3 thin films are successfully passivated by in-situ hydrogen doping during the magnetron sputtering process. As a result, the dark current of a-Ga2O3 UV PD is remarkably suppressed to 5.17×10-11 A at a bias of 5 V. Importantly, the photocurrent of the corresponding device is still as high as 1.37×10-3 A, leading to a high photo-to-dark current ratio (PDCR) of 2.65×107 and the capability to detect the UV light with the intensity below 10 nW/cm2. Moreover, the H-doped a-Ga2O3 thin films have also been deposited on polyethylene naphtholate (PEN) substrates to construct flexible UV PDs, which exhibit no great degradation in bending states and fatigue tests. These results demonstrate that hydrogen doping can effectively improve the performance of a-Ga2O3 UV PDs, further promoting its practical application in various areas.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"18 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mixed iridium-nickel oxides supported on antimony-doped tin oxide as highly efficient and stable acidic oxygen evolution catalysts 以掺锑氧化锡为载体的混合铱镍氧化物作为高效稳定的酸性氧进化催化剂

Materials Futures Pub Date : 2023-12-18 DOI: 10.1088/2752-5724/ad16d2

Jonathan Ruiz Esquius, Alec P. LaGrow, Haiyan Jin, Zhipeng Yu, A. Araújo, Rita Marques, Adélio Mendes, Lifeng Liu

{"title":"Mixed iridium-nickel oxides supported on antimony-doped tin oxide as highly efficient and stable acidic oxygen evolution catalysts","authors":"Jonathan Ruiz Esquius, Alec P. LaGrow, Haiyan Jin, Zhipeng Yu, A. Araújo, Rita Marques, Adélio Mendes, Lifeng Liu","doi":"10.1088/2752-5724/ad16d2","DOIUrl":"https://doi.org/10.1088/2752-5724/ad16d2","url":null,"abstract":"Proton exchange membrane (PEM) water electrolysis represents a promising technology for green hydrogen production, but its widespread deployment is greatly hindered by the indispensable usage of platinum group metal (PGM) catalysts, especially iridium (Ir) based materials for the energy-demanding oxygen evolution reaction (OER). Herein, we report a new sequential precipitation approach to the synthesis of mixed Ir-nickel (Ni) oxy-hydroxide supported on antimony-doped tin oxide (ATO) nanoparticles (IrNiyOx/ATO, 20 wt.% (Ir + Ni), y = 0, 1, 2, and 3), aiming to reduce the utilisation of scarce and precious Ir while maintaining its good acidic OER performance. When tested in strongly acidic electrolyte (0.1 M HClO4), the optimised IrNi1Ox/ATO shows a mass activity of 1.0 mA µgIr-1 and a large turnover frequency of 123 s-1 at an overpotential of 350 mV, as well as a comparatively small Tafel slope of 50 mV dec-1, better than the IrOx/ATO control, particularly with a markedly reduced Ir loading of only 19.7 µgIr cm-2. Importantly, IrNi1Ox/ATO also exhibits substantially better catalytic stability than other reference catalysts, able to continuously catalyse acidic OER at 10 mA cm-2 for 15 h without obvious degradation. Our in-situ synchrotron-based X-ray absorption spectroscopy confirmed that the Ir3+/Ir4+ species are the active sites for the acidic OER. Furthermore, the performance of IrNi1Ox/ATO was also preliminarily evaluated in a membrane electrode assembly, which shows better activity and stability than other reference catalysts. The IrNi1Ox/ATO reported in this work is a promising alternative to commercial IrO2 based catalysts for PEM electrolysis.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"94 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging multimodal memristors for neuromorphic perception applications 用于神经形态感知应用的新兴多模态忆阻器

Materials Futures Pub Date : 2023-12-02 DOI: 10.1088/2752-5724/ad119e

Xuanyu Shan, Ya Lin, Zhongqiang Wang, Xiaoning Zhao, Ye Tao, Haiyang Xu, Yichun Liu

{"title":"Emerging multimodal memristors for neuromorphic perception applications","authors":"Xuanyu Shan, Ya Lin, Zhongqiang Wang, Xiaoning Zhao, Ye Tao, Haiyang Xu, Yichun Liu","doi":"10.1088/2752-5724/ad119e","DOIUrl":"https://doi.org/10.1088/2752-5724/ad119e","url":null,"abstract":"\u0000 The integration of sensory information from different modalities, such as touch and vision, is essential for organisms to perform behavioral functions such as decision making, learning, and memory. Artificial implementation of human multi-sensory perception using electronic supports is of great significance for achieving efficient human-machine interaction. Thanks to their structural and functional similarity with biological synapses, memristors are emerging as promising nanodevices for developing artificial neuromorphic perception. Memristive devices can sense multidimensional signals including light, pressure, and sound. Their in-sensor computing architecture represents an ideal platform for efficient multimodal perception. We review recent progress in multimodal memristive technology and its application to neuromorphic perception of complex stimuli carrying visual, olfactory, auditory, and tactile information. We describe and clarify the principles underlying memristors and their mechanism of operation. Finally, we discuss the challenges and prospects associated with this rapidly progressing field of research.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"113 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138607617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards an enhanced understanding of the particle size effect on conversion/alloying lithium-ion anodes 进一步了解颗粒尺寸对转换/合金化锂离子阳极的影响

Materials Futures Pub Date : 2023-11-30 DOI: 10.1088/2752-5724/ad1115

Jakob Asenbauer, Dominik Horny, Mayokun Olutogun, Katrin Schulz, D. Bresser

{"title":"Towards an enhanced understanding of the particle size effect on conversion/alloying lithium-ion anodes","authors":"Jakob Asenbauer, Dominik Horny, Mayokun Olutogun, Katrin Schulz, D. Bresser","doi":"10.1088/2752-5724/ad1115","DOIUrl":"https://doi.org/10.1088/2752-5724/ad1115","url":null,"abstract":"Conversion/alloying materials (CAMs) represent a potential alternative to graphite as a Li-ion anode active material, especially for high-power applications. So far, however, essentially all studies on CAMs have been dealing with nano-sized particles, leaving the question of how the performance (and the de-/lithiation mechanism in general) is affected by the particle size. Herein, we comparatively investigate four different samples of Zn0.9Co0.1O with a particle size ranging from about 30 nm to a few micrometers. The results show that electrodes made of larger particles are more susceptible to fading due to particle displacement and particle cracking. The results also show that the conversion-type reaction in particular is affected by an increasing particle size, becoming less reversible due to the formation of relatively large transition metal (TM) and alloying metal nanograins upon lithiation, thus hindering an efficient electron transport within the initial particle, while the alloying contribution remains essentially unaffected. The generality of these findings is confirmed by also investigating Sn0.9Fe0.1O2 as a second CAM with a substantially greater contribution of the alloying reaction and employing Fe instead of Co as a TM dopant.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139197851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Weavable Thermoelectrics: Advancements, Controversies, and Future Developments 可织造热电材料:进步、争议和未来发展

Materials Futures Pub Date : 2023-11-14 DOI: 10.1088/2752-5724/ad0ca9

Xiao-Lei Shi, Shuai Sun, Ting Wu, Jian Tu, Zhiming Zhou, Qingfeng Liu, Zhigang Chen

引用次数: 0

Graphene Quantum Dots: Preparations, Properties, Functionalizations and Applications 石墨烯量子点:制备、性质、功能化和应用

Materials Futures Pub Date : 2023-11-02 DOI: 10.1088/2752-5724/ad08cb

Pin Tian, Libin Tang, Shu-Ping Lau, Kar-Seng Teng

{"title":"Graphene Quantum Dots: Preparations, Properties, Functionalizations and Applications","authors":"Pin Tian, Libin Tang, Shu-Ping Lau, Kar-Seng Teng","doi":"10.1088/2752-5724/ad08cb","DOIUrl":"https://doi.org/10.1088/2752-5724/ad08cb","url":null,"abstract":"Abstract Due to its zero-dimensional property, graphene quantum dots (GQDs) has quantum confinement effect on the internal charge, so they show many properties different from the parent two-dimensional graphene, such as strong fluorescence, non-zero band gap and easily soluble in solvents. As a member of the family of carbon materials, GQDs also has biocompatibility and low toxicity, which is one of the reasons why GQDs can be widely used in the biomedical field .The edge effect of GQDs is also particularly important. By modifying the edge of GQDs, the performance of GQDs can be regulated. A lot of preparation technology of GQDs, probably can be divided into three categories, and top-down, bottom-up and chemical method, chemical method is different from other literature classification, mainly considering the certain of the preparation of GQDs way, not directly to block materials or direct synthesis of small molecule materials for GQDs, but through intermediate in chemical means under the action of changes and form GQDs. The detailed introduction of the optical, electrical, thermal and magnetic properties of GQDs is the premise of the performance regulation of GQDs. In addition to inheriting the excellent properties of graphene, GQDs also expand the properties of the parent material. The functionalization of GQDs mainly includes the doping technology of introducing heteroatom and the composite technology of combining with other substances to improve the performance of other substances. The performance of these functionalized products is also discussed. The original and functionalized properties of GQDs are based on the application of GQDs. In recent years, GQDs has been used in many fields, including optics, electricity, optoelectronics, biomedicine, energy, agriculture and some emerging interdisciplinary fields. Through the introduction and discussion of the recent research achievements of GQDs, this review mainly highlights the huge potential value of GQDs and puts forward the direction of the development of GQDs in the future.&#xD;","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135876450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observation of stabilized negative capacitance effect in hafnium-based ferroic films 铪基铁膜稳定负电容效应的观察

Materials Futures Pub Date : 2023-10-19 DOI: 10.1088/2752-5724/ad0524

Leilei Qiao, Ruiting Zhao, Cheng Song, Yongjian Zhou, Qian Wang, Donghui Zhang, Tian-Ling Ren, Feng Pan

{"title":"Observation of stabilized negative capacitance effect in hafnium-based ferroic films","authors":"Leilei Qiao, Ruiting Zhao, Cheng Song, Yongjian Zhou, Qian Wang, Donghui Zhang, Tian-Ling Ren, Feng Pan","doi":"10.1088/2752-5724/ad0524","DOIUrl":"https://doi.org/10.1088/2752-5724/ad0524","url":null,"abstract":"Abstract Negative capacitance (NC) effect has been proposed as a critical pathway to overcome the “Boltzmann tyranny” of electrons, achieve the steep slope operation of transistors, and reduce the power dissipation of current semiconductor devices. Particularly, the ferroic property in hafnium-based films with fluorite structure provides an opportunity for the application of NC effect in electronic devices. However, up to now, only transient NC effect has been confirmed in hafnium-based ferroic materials, which is usually accompanied with hysteresis and detrimental to low power operations of transistors. The stabilized NC effect enables the hysteresis-free and low power transistors, but has never been observed and demonstrated in hafnium-based films. Such an absence is closely related to the polycrystalline and multi-phase structure of hafnium-based films fabricated by atomic layer deposition or chemical solution deposition. Here, we prepare epitaxial ferroelectric Hf0.5Zr0.5O2and antiferroelectric ZrO2films with single-domain structure and observe the capacitance enhancement effect of Hf0.5Zr0.5O2/Al2O3 and ZrO2/Al2O3 capacitors than that of the isolated Al2O3capacitor, verifying the stabilized NC effect. The capacitance of Hf0.5Zr0.5O2and ZrO2is evaluated as –17.41 and –27.64 pF, respectively. The observation of stabilized NC effect in hafnium-based films sheds light on the NC studies and paves an avenue to the low-power transistors.&#xD;","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135729068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycling of Solid-State Batteries – Challenge and Opportunity for a Circular Economy? 固态电池的回收利用——循环经济的挑战与机遇?

Materials Futures Pub Date : 2023-09-19 DOI: 10.1088/2752-5724/acfb28

Martine Jacob, Kerstin Wissel, Oliver Clemens

{"title":"Recycling of Solid-State Batteries – Challenge and Opportunity for a Circular Economy?","authors":"Martine Jacob, Kerstin Wissel, Oliver Clemens","doi":"10.1088/2752-5724/acfb28","DOIUrl":"https://doi.org/10.1088/2752-5724/acfb28","url":null,"abstract":"Abstract The tremendous efforts made in the research field of solid-state Li-ion batteries has led to considerable advancement of this technology and first market-ready systems can be expected in the near future. The research community is currently investigating different solid-state electrolyte classes (e.g., oxides, sulfides, halides and polymers) with a focus on further optimizing the synthesis and electrochemical performance. However, so far, the development of sustainable recycling strategies allowing for an efficient backflow of critical elements contained in these batteries into the economic cycle and thus a transition from a linear to a circular economy lags behind.&#xD;In this contribution, resource aspects with respect to the chemical value of crucial materials, which are used for the synthesis of solid-state electrolytes are being discussed. Furthermore, an overview of possible approaches in relation to their challenges and opportunities for the recycling of solid-state batteries with respect to different solid-state electrolyte classes by means of pyrometallurgy, hydrometallurgy and direct recycling/dissolution-based separation processes is given. Based these considerations and with reference to previous research, it will be shown that different solid-state electrolytes will require individually adapted recycling processes to be suitably designed for a circular economy, and that further improvements and investigations will be required.&#xD;","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135059124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-dimensional van der Waals materials for linear-polarization-sensitive photodetection: materials, polarizing strategies and applications 用于线偏振敏感光探测的低维范德华材料:材料、偏振策略和应用

Materials Futures Pub Date : 2023-09-14 DOI: 10.1088/2752-5724/acf9ba

Yuhang Ma, Huaxin Yi, Huanrong Liang, Wan Wang, Zhaoqiang Zheng, Jiandong Yao, Guowei Yang

{"title":"Low-dimensional van der Waals materials for linear-polarization-sensitive photodetection: materials, polarizing strategies and applications","authors":"Yuhang Ma, Huaxin Yi, Huanrong Liang, Wan Wang, Zhaoqiang Zheng, Jiandong Yao, Guowei Yang","doi":"10.1088/2752-5724/acf9ba","DOIUrl":"https://doi.org/10.1088/2752-5724/acf9ba","url":null,"abstract":"Abstract Detecting light from a wealth of physical degrees of freedom (e.g., wavelength, intensity, polarization state, phase, etc.) enables the acquirement of more comprehensive information. In the past two decades, low-dimensional van der Waals materials (vdWMs) have established themselves as transformative building blocks toward lensless polarization optoelectronics, which is highly beneficial for optoelectronic system miniaturization. This review provides a comprehensive overview on the recent development of low-dimensional vdWM polarized photodetectors. To begin with, the exploitation of pristine 1D/2D vdWMs with immanent in-plane anisotropy and related heterostructures for filterless polarization-sensitive photodetectors is introduced. Then, we have systematically epitomized the various strategies to induce polarization photosensitivity and enhance the degree of anisotropy for low-dimensional vdWM photodetectors, including quantum tailoring, construction of core-shell structures, rolling engineering, ferroelectric regulation, strain engineering, etc., with emphasis on the fundamental physical principles. Following that, the ingenious optoelectronic applications based on the low-dimensional vdWM polarized photodetectors, including multiplexing optical communications and enhanced-contrast imaging, have been presented. In the end, the current challenges along with the future prospects of this burgeoning research field have been underscored. On the whole, the review depicts a fascinating landscape for the next-generation high-integration multifunctional optoelectronic systems.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135552375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2