Npg Asia Materials最新文献

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Aerosol assisted chemical vapor deposition of cobalt-based co-catalysts on bismuth vanadate-based photoelectrodes for solar water splitting systems. 气溶胶辅助化学气相沉积钴基助催化剂在钒酸铋基光电极上用于太阳能水分解系统。
IF 9 2区 材料科学
Npg Asia Materials Pub Date : 2026-01-01 Epub Date: 2026-03-18 DOI: 10.1038/s41427-026-00641-y
Mengyuan Huang, George Creasey, Zhipeng Lin, Anna Hankin, Brian Tam, Andreas Kafizas
{"title":"Aerosol assisted chemical vapor deposition of cobalt-based co-catalysts on bismuth vanadate-based photoelectrodes for solar water splitting systems.","authors":"Mengyuan Huang, George Creasey, Zhipeng Lin, Anna Hankin, Brian Tam, Andreas Kafizas","doi":"10.1038/s41427-026-00641-y","DOIUrl":"10.1038/s41427-026-00641-y","url":null,"abstract":"<p><p>Cobalt phosphate (CoPi) is a widely used oxygen evolution reaction (OER) catalyst in photoelectrochemical (PEC) water splitting systems. Traditionally, CoPi is fabricated via photo-assisted electrodeposition (PED) from a cobalt-containing electrolyte solution, a method that is limited in scalability. In this study, we demonstrate a novel and scalable route to CoPi, where cobalt oxide (CoO<sub>x</sub>) is first grown by aerosol-assisted chemical vapour deposition (AACVD) and then surface modified through a dark electrochemical treatment (ET) process. Both fabrication techniques were used to deposit CoPi onto bismuth vanadate (BiVO<sub>4</sub>) photoanodes synthesised by AACVD. CoPi-decorated BiVO<sub>4</sub> fabricated <i>via</i> AACVD + ET demonstrated superior charge separation efficiency, stability over four hours of chronoamperometry, and photoelectrochemical performance, achieving an improved half-cell solar-to-hydrogen (HC-STH) efficiency of 1.16% at 1.23 V vs RHE compared to CoPi-decorated BiVO<sub>4</sub> fabricated by PED, which exhibited an HC-STH efficiency of 0.60%. These promising results highlight the potential of AACVD, conducted under atmospheric pressure, to enable the future development of both co-catalysts and scalable photoelectrode fabrication for large-area applications.</p>","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"18 1","pages":"8"},"PeriodicalIF":9.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13013027/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147521515","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}
引用次数: 0
An in-situ self-gelation photothermal alginate-based sponge dressing for rapid and effective wound management 一种基于海藻酸盐的原位自凝胶光热海绵敷料,用于快速有效的伤口处理
2区 材料科学
Npg Asia Materials Pub Date : 2025-10-03 DOI: 10.1038/s41427-025-00620-9
Jiahao An, Lin Li, Tingting Wu, Zudong Lin, Ruohan Ren, Toyohisa Fujita, Qian Liu
{"title":"An in-situ self-gelation photothermal alginate-based sponge dressing for rapid and effective wound management","authors":"Jiahao An, Lin Li, Tingting Wu, Zudong Lin, Ruohan Ren, Toyohisa Fujita, Qian Liu","doi":"10.1038/s41427-025-00620-9","DOIUrl":"https://doi.org/10.1038/s41427-025-00620-9","url":null,"abstract":"","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-025-00620-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332975","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}
引用次数: 0
Dual dynamic bonds synergy for reusable bio-based adhesive with superior mechanical robustness, environmental reliability, and mildew resistance 双动态键协同可重复使用的生物基粘合剂具有优越的机械稳健性,环境可靠性和抗霉性
2区 材料科学
Npg Asia Materials Pub Date : 2025-08-08 DOI: 10.1038/s41427-025-00601-y
Jiayi Zhang, Nairong Chen, Zhiqiang Zhu, Youhui Huang, Lihui Chen, Li Feng
{"title":"Dual dynamic bonds synergy for reusable bio-based adhesive with superior mechanical robustness, environmental reliability, and mildew resistance","authors":"Jiayi Zhang, Nairong Chen, Zhiqiang Zhu, Youhui Huang, Lihui Chen, Li Feng","doi":"10.1038/s41427-025-00601-y","DOIUrl":"https://doi.org/10.1038/s41427-025-00601-y","url":null,"abstract":"Abstract Introducing dynamics into bio-based adhesives shows many advantages on rendering mechanics and functions. However, the efficient employment of dynamic chemistry in achieving robust, stable, and reusable bio-based adhesives derived from low-value residues remains elusive. Here, we facilely develop a reused camellia meal-based adhesive integrating excellent mechanical robustness, environment durability, and mildew resistance through the cooperation of dual dynamic bonds. By deliberately harnessing dynamic covalent bonds as the first strong interlinking and dynamic noncovalent bonds as the second weak interaction, our strategy allows the resulting adhesive with a much-improved adhesion strength (2.1/1.06 MPa to wood in dry/wet condition) and remarkable adhesion maintenance against harsh environmental factors (organic solvents, salt, acid, alkali, temperature, soaking time). By virtue of these abundant dynamic bonds, this adhesive not only escapes from the inherent drawback of biomaterials to display enlarged anti-mildew efficacy, but also is capable of reprocessing to gain reusability. Combining these desirous characters with the simple two-step fabrication process, this study provides a great potential for the development of high-performance bio-based adhesives sustainably and intelligently.","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-025-00601-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891291","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}
引用次数: 2
Polydopamine-modified hydrogel nanofibers for sustained SFRP2 release: synergistic promotion of angiogenesis and nerve regeneration 持续释放SFRP2的聚多巴胺修饰水凝胶纳米纤维:协同促进血管生成和神经再生
2区 材料科学
Npg Asia Materials Pub Date : 2025-07-03 DOI: 10.1038/s41427-025-00610-x
Linjie Zhang, Peng Qiu, Sisi Shen, Chunling Zhang, Jinbao Qin, Zhijue Xu, Zhuoma Yixi, Jie Lv, Hongji Pu, Jiahao Lei, Xinwu Lu, Qun Huang, Bingcheng Yi, Minyi Yin
{"title":"Polydopamine-modified hydrogel nanofibers for sustained SFRP2 release: synergistic promotion of angiogenesis and nerve regeneration","authors":"Linjie Zhang, Peng Qiu, Sisi Shen, Chunling Zhang, Jinbao Qin, Zhijue Xu, Zhuoma Yixi, Jie Lv, Hongji Pu, Jiahao Lei, Xinwu Lu, Qun Huang, Bingcheng Yi, Minyi Yin","doi":"10.1038/s41427-025-00610-x","DOIUrl":"https://doi.org/10.1038/s41427-025-00610-x","url":null,"abstract":"Abstract Hydrogel nanofibers provide a regeneration-permissive environment conducive to the regrowth of numerous nerve fibers, thereby enhancing regenerative capacity in cases of peripheral nerve injury and spinal cord injury. However, developing hydrogel nanofiber-based nerve guidance conduits (NGCs) with tailored drug release profiles to synergistically promote angiogenesis and axonal regeneration remains a significant challenge. In this study, novel polydopamine (PDA)-modified gelatin methacryloyl (GelMA) hydrogel nanofibers are developed as an efficient drug delivery platform for sustained release of Secreted Frizzled-Related Protein-2 (SFRP2). This platform aims to promote neurite outgrowth, facilitate nerve function recovery, and enhance angiogenesis through Wnt signaling pathways. Results indicate that PDA coating significantly improves the hydrophilicity and mechanical properties of GelMA hydrogel nanofibers, which were fabricated using a combination of electrospinning and photo-crosslinking technology. This modification enables SFRP2 loading for sustained release through π-π stacking interactions and hydrogen bonding. In vitro experiments demonstrate that SFRP2-loaded hydrogel nanofibers effectively enhance the adhesion, proliferation, viability, and migration of Mouse Schwann Cells (MSCs), while also promoting tube formation and ameliorating the inflammatory microenvironment of Human Umbilical Vein Endothelial Cells (HUVECs). Furthermore, the SFRP2-loaded hydrogel nanofibers are confirmed to exert their functions for angiogenesis and peripheral nerve regeneration via the calcium-dependent calcineurin/NFATc3 signaling pathway. Finally, the hydrogel nanofiber-based NGCs are applied in a mouse model of peripheral nerve injury, and results demonstrate that the SFRP2 ~ PDA@GelMA conduit significantly enhances angiogenesis, promotes peripheral nerve repair, and facilitates target muscle restoration and functional recovery, thus presents a promising therapeutic strategy for patients with peripheral nerve injuries.","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-025-00610-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147879838","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}
引用次数: 7
Asymmetric ion transport through heterogeneous bilayers of covalent organic frameworks 不对称离子通过共价有机框架的非均相双层传输
2区 材料科学
Npg Asia Materials Pub Date : 2025-01-09 DOI: 10.1038/s41427-024-00582-4
Xiaopeng Zhang, Shixian Xin, Qian Qin, Xiaoyi Xi, Munan Fang, Zhifei Sun, Yunyang Wang, Yulong Li, Yue Wang, Xingtao Tian, Yuntong Li, Siyu Wang, Jinlei Yang, Zhiyong Tang, Lianshan Li
{"title":"Asymmetric ion transport through heterogeneous bilayers of covalent organic frameworks","authors":"Xiaopeng Zhang, Shixian Xin, Qian Qin, Xiaoyi Xi, Munan Fang, Zhifei Sun, Yunyang Wang, Yulong Li, Yue Wang, Xingtao Tian, Yuntong Li, Siyu Wang, Jinlei Yang, Zhiyong Tang, Lianshan Li","doi":"10.1038/s41427-024-00582-4","DOIUrl":"https://doi.org/10.1038/s41427-024-00582-4","url":null,"abstract":"Abstract In recent years, with the development of interfacial polymerization methodologies, the successful preparation of covalent organic framework (COF) monolayers featuring ultrahigh pore density and molecule-scale thickness has become a reality. This advancement has enabled ion transport with ultrahigh flux across extremely short paths. Owing to these processes, the COF monolayers have shown wide potential applications ranging from energy conversion and artificial mechanosensing to ion sieving. To date, nanofluidic systems based on COF monolayers are homogeneous, leading to nearly symmetric ion transport properties. Studies on the ionic transport behavior within ultrathin COF heterojunctions are limited and remain challenging. Herein, using a two-step sequential self-assembly and subsequent interfacial polymerization strategy, bi-layered heterogeneous tetraphenylporphyrin-based COF membranes composed of negatively charged and positively charged monolayers were prepared. Using an electric field as a driving force, rectified ion transport was observed for the first time. Notably, this ionic current rectification property could be modulated by the salt concentration and the structural composition of the membrane, and it was universal for various COF heterojunctions with different chemical ingredients. These findings are beneficial for promoting the development of innovative nanofluidic materials and devices.","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-024-00582-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147910637","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}
引用次数: 6
Microneedles for controlled and sustained intraocular drug delivery. 用于控制和持续眼内给药的微针。
IF 8.3 2区 材料科学
Npg Asia Materials Pub Date : 2025-01-01 Epub Date: 2025-08-22 DOI: 10.1038/s41427-025-00614-7
Junsang Lee, Jinheon Jeong, Van Phuc Nguyen, Seokkyoon Hong, Yannis M Paulus, Chi Hwan Lee
{"title":"Microneedles for controlled and sustained intraocular drug delivery.","authors":"Junsang Lee, Jinheon Jeong, Van Phuc Nguyen, Seokkyoon Hong, Yannis M Paulus, Chi Hwan Lee","doi":"10.1038/s41427-025-00614-7","DOIUrl":"10.1038/s41427-025-00614-7","url":null,"abstract":"<p><p>Microneedles (MNs) have emerged as a promising technology for minimally invasive drug delivery, offering significant advantages in the treatment of ocular diseases. These miniaturized needles enable precise, localized drug delivery directly into specific tissues of the eye, such as the cornea, sclera, vitreous, or retina, while minimizing pain and discomfort. MNs can be fabricated from various biocompatible materials, including metals, silicon, and biodegradable polymers, making them highly adaptable to various clinical applications. Recent advancements in MN design include the integration of 3D printing technologies to create highly customized geometries for improved drug delivery precision, the use of smart materials that enable stimuli-responsive and sustained drug release, and the development of hybrid microneedles combining different polymers to enhance both mechanical strength and controlled drug release. These innovations have established MNs as a superior alternative to traditional methods like eye drops or intravitreal injections, which often face issues of limited bioavailability and patient compliance. This review summarizes the current state of research on MN-based ocular drug delivery, focusing on material developments, fabrication methods, drug release mechanisms, and implantation techniques. Future directions for MN technology in ophthalmology are also discussed, highlighting its potential to improve treatment outcomes for complex ocular diseases.</p>","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"17 1","pages":"33"},"PeriodicalIF":8.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12370535/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144963178","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}
引用次数: 0
Atomic scale determination of magnetism and stoichiometry at the La0.7Sr0.3MnO3/SrTiO3 interface: investigation of inverse hysteresis. La0.7Sr0.3MnO3/SrTiO3界面磁性和化学计量学的原子尺度测定:逆磁滞现象的研究。
IF 8.6 2区 材料科学
Npg Asia Materials Pub Date : 2025-01-01 Epub Date: 2025-03-07 DOI: 10.1038/s41427-025-00590-y
Gyanendra Panchal, Federico Stramaglia, Pawan Kumar, Enrico Schierle, Klaus Habicht, Carlos A F Vaz, Katharina Fritsch
{"title":"Atomic scale determination of magnetism and stoichiometry at the La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/SrTiO<sub>3</sub> interface: investigation of inverse hysteresis.","authors":"Gyanendra Panchal, Federico Stramaglia, Pawan Kumar, Enrico Schierle, Klaus Habicht, Carlos A F Vaz, Katharina Fritsch","doi":"10.1038/s41427-025-00590-y","DOIUrl":"10.1038/s41427-025-00590-y","url":null,"abstract":"<p><p>Controlling the correlations and electronic reconstruction at the interface of transition metal oxide heterostructures provides a new pathway for tuning their unique physical properties. Here, we investigate the effects of interfacial nonstoichiometry and vertical phase separation on the magnetic properties and proximity-induced magnetism of epitaxial La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub> (LSMO)/SrTiO<sub>3</sub>(001) oxide heterostructures. We also reinvestigate the recently observed inverse hysteresis behavior reported for this system, which we find emanates from the remanent field of the superconducting solenoid and not from antiferromagnetic intra-layer exchange coupling in low coercivity LSMO thin films. Combined atomically resolved electron energy loss spectroscopy, element-specific X-ray magnetic circular dichroism, and interface-sensitive polarized soft X-ray resonant magnetic reflectivity show the formation of a Mn<sup>3+</sup>-enriched interfacial LSMO layer, of a Ti<sup>3+</sup>-derived magnetic interface layer coupled ferromagnetically to La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>, together with a small density of O-vacancies at the interface. These results not only advance the understanding of the magnetism and spin structure of correlated oxide interfaces but also hold promise for practical applications, especially in devices where the performance relies on the control and influence of spin polarization currents by the interfacial spin structure.</p>","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"17 1","pages":"9"},"PeriodicalIF":8.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11885156/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586418","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}
引用次数: 0
Relationship between network topology and negative electrode properties in Wadsley–Roth phase TiNb2O7 瓦兹利-罗斯相 TiNb2O7 中网络拓扑结构与负电极特性之间的关系
IF 8.6 2区 材料科学
Npg Asia Materials Pub Date : 2024-12-10 DOI: 10.1038/s41427-024-00581-5
Naoto Kitamura, Hikari Matsubara, Koji Kimura, Ippei Obayashi, Yohei Onodera, Ken Nakashima, Hidetoshi Morita, Motoki Shiga, Yasuhiro Harada, Chiaki Ishibashi, Yasushi Idemoto, Koichi Hayashi
{"title":"Relationship between network topology and negative electrode properties in Wadsley–Roth phase TiNb2O7","authors":"Naoto Kitamura,&nbsp;Hikari Matsubara,&nbsp;Koji Kimura,&nbsp;Ippei Obayashi,&nbsp;Yohei Onodera,&nbsp;Ken Nakashima,&nbsp;Hidetoshi Morita,&nbsp;Motoki Shiga,&nbsp;Yasuhiro Harada,&nbsp;Chiaki Ishibashi,&nbsp;Yasushi Idemoto,&nbsp;Koichi Hayashi","doi":"10.1038/s41427-024-00581-5","DOIUrl":"10.1038/s41427-024-00581-5","url":null,"abstract":"Wadsley–Roth phase TiNb2O7, with an octahedral network consisting of TiO6 and NbO6, has attracted significant attention as a negative electrode material for lithium-ion batteries in recent years owing to its excellent safety and high discharge capacity. In this work, we investigated the effect of the network structure (intermediate-range structure), which is considered to form Li+ conduction pathways, on the electrode properties of TiNb2O7. To this end, we prepared TiNb2O7 samples with different charge/discharge properties and generated atomic configurations that simultaneously reproduce both total scattering and Bragg profile data. Topological analyses based on persistent homology demonstrated that the network disorder hidden in the average structure (crystal structure) significantly degrades the negative electrode properties. In conclusion, controlling the network topology is considered the key to improving the negative electrode properties of TiNb2O7. In recent years, the need for safer and more efficient rechargeable batteries has grown due to the increasing use of renewable energy. Traditional lithium-ion batteries have safety risks, such as catching fire, especially when charged quickly. Researchers are exploring new materials to improve battery safety and performance. They studied a material called TiNb2O7, which could be a safer alternative for battery electrodes. Researchers prepared TiNb2O7 using different methods and tested its performance in batteries. They used advanced techniques to analyze the material’s structure at the atomic level. This study focused on how the arrangement of atoms affects the battery’s ability to store and release energy. The results showed TiNb2O7 has potential as a battery electrode, offering good capacity and safety. The study concluded that understanding the atomic structure can guide the development of better battery materials. This summary was initially drafted using artificial intelligence, then revised and fact-checked by the author. In this work, we focused on Wadsley–Roth phase TiNb2O7 with an octahedral network as a negative electrode material for lithium-ion batteries and investigated the effect of the network structure, which is considered to form Li+ conduction pathways, on the electrode properties. To this end, we prepared samples with different charge/discharge properties and generated atomic configurations that simultaneously reproduce both total scattering and Bragg profile data. Topological analyses based on persistent homology demonstrated that the network disorder significantly degrades the electrode properties.","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"16 1","pages":"1-13"},"PeriodicalIF":8.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-024-00581-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187394","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}
引用次数: 0
Intrinsically anisotropic 1D NbTe4 for self-powered polarization-sensitive photodetection 用于自供电偏振敏感光电探测的本征各向异性 1D NbTe4
IF 8.6 2区 材料科学
Npg Asia Materials Pub Date : 2024-11-29 DOI: 10.1038/s41427-024-00580-6
Huahu Luo, Fafa Wu, Chaowei He, Wanfu Shen, Chunguang Hu, Weina Zhao, Peng Yu, Guowei Yang
{"title":"Intrinsically anisotropic 1D NbTe4 for self-powered polarization-sensitive photodetection","authors":"Huahu Luo,&nbsp;Fafa Wu,&nbsp;Chaowei He,&nbsp;Wanfu Shen,&nbsp;Chunguang Hu,&nbsp;Weina Zhao,&nbsp;Peng Yu,&nbsp;Guowei Yang","doi":"10.1038/s41427-024-00580-6","DOIUrl":"10.1038/s41427-024-00580-6","url":null,"abstract":"Polarization-sensitive photodetection enhances scene information capture, crucial for modern optoelectronic devices. One-dimensional (1D) materials with intrinsic anisotropy, capable of directly sensing polarized light, are promising for such photodetectors. NbTe4, a quasi-1D transition metal tetra-chalcogenide, offers significant benefits for polarization-sensitive photodetection due to its structural anisotropy. Nonetheless, to date, the anisotropic properties of 1D NbTe4 have not been reported. Herein, NbTe4 nanobelts were synthesized via mechanical exfoliation from needle-like bulk crystals, and their anisotropic and optoelectronic properties were comprehensively studied. Angle-resolved polarized Raman spectroscopy, in conjunction with azimuth-dependent reflectance difference microscopy, confirmed that 1D NbTe₄ exhibits intrinsic structural and in-plane optical anisotropy. The 1D NbTe4 device demonstrated characteristic anisotropic photodetection behavior, achieving dichroic ratios of 1.16 at 671 nm and 1.25 at 1064 nm. Meanwhile, the device exhibits a pronounced photothermoelectric effect, conferring a broad spectral photoresponse ranging from visible to near-infrared wavelengths (532-1064 nm), with a rapid response time of 158 ms. This study demonstrates that NbTe4 inherently possesses in-plane anisotropy, making it a promising candidate for polarization-sensitive photodetection applications. The 1D transition metal tetra-chalcogenides, NbTe4, with inherent structural and optical anisotropy, has been used to develop a polarization-sensitive photodetector. The NbTe4 flakes-based device displays pronounced anisotropic photodetection properties with a dichroic ratio of 1.16 at 671 nm and 1.25 at 1064 nm. It also demonstrates a significant photothermoelectric effect, enabling a broad spectral response from the visible to near-infrared spectrum (532-1064 nm).","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"16 1","pages":"1-10"},"PeriodicalIF":8.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-024-00580-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187393","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}
引用次数: 0
Recent advances in high-entropy superconductors 高熵超导体的最新进展
IF 8.6 2区 材料科学
Npg Asia Materials Pub Date : 2024-11-29 DOI: 10.1038/s41427-024-00579-z
Lingyong Zeng, Longfu Li, Kuan Li, Rui Chen, Huixia Luo
{"title":"Recent advances in high-entropy superconductors","authors":"Lingyong Zeng,&nbsp;Longfu Li,&nbsp;Kuan Li,&nbsp;Rui Chen,&nbsp;Huixia Luo","doi":"10.1038/s41427-024-00579-z","DOIUrl":"10.1038/s41427-024-00579-z","url":null,"abstract":"High-entropy materials (HEMs) exhibit significant potential for diverse applications owing to their tunable properties, which can be precisely engineered through the selection of specific elements and the modification of stoichiometric ratios. The discovery of superconductivity in HEMs has garnered considerable interest, leading to accelerated advancements in this field in recent years. This review provides an overview of various high-entropy superconductors, highlighting their distinct features, such as disordered crystal structure, factors affecting the critical temperature (Tc), unconventional superconductivity, and topological bands. A perspective on this field is subsequently proposed, drawing upon insights from recently published academic literature. The objective is to provide researchers with a comprehensive and clear understanding of the newly developed high-entropy superconductivity, thereby catalyzing further advancements in this domain. The discovery of superconductivity in high-entropy materials has garnered considerable interest, leading to accelerated advancements in this field in recent years. Some interesting phenomena have been found in high-entropy superconductors, such as the robustness of superconductivity to pressure, large upper critical field, strong coupling behavior, and topological band structure. Accordingly, the present review article is dedicated to summarizing the recently reported works on the structural type and physical properties of high-entropy superconductors, as well as their potential applications. Finally, we provide our perspective on the future challenges of high-entropy superconductors.","PeriodicalId":19382,"journal":{"name":"Npg Asia Materials","volume":"16 1","pages":"1-13"},"PeriodicalIF":8.6,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41427-024-00579-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187392","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}
引用次数: 0
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