Materials Today Physics最新文献

{"title":"Corrigendum to ‘BiCuSeO based thermoelectric materials: Innovations and challenges’ [Mater. Today Phys. 35 (2023) 101104]","authors":"Wenxin Tang , Wanyu Qian , Shuanglin Jia , Ke Li , Zhifang Zhou , Jinle Lan , Yuan-Hua Lin , Xiaoping Yang","doi":"10.1016/j.mtphys.2024.101621","DOIUrl":"10.1016/j.mtphys.2024.101621","url":null,"abstract":"","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101621"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142797521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plasmonic photothermal superhydrophobic surface with nanotubes thermal insulating blanket for anti-icing and anti-frosting under weak light illumination","authors":"Huamei Zhong,&nbsp;Chengjie Xiang,&nbsp;Zhifeng Hu,&nbsp;Xinge Yang,&nbsp;Haoran Liu,&nbsp;Ruzhu Wang","doi":"10.1016/j.mtphys.2024.101625","DOIUrl":"10.1016/j.mtphys.2024.101625","url":null,"abstract":"<div><div>Accumulation of ice and frost poses a substantial threat to the safe and efficient operation of transportation and energy infrastructures, such as aircraft, vessels, and wind turbines. While photothermal superhydrophobic surfaces have emerged as a promising solution for anti- and de-icing, the high thermal conductivity of metal substrates leads to large heat losses that limits the thermal efficiency of photothermal surfaces. In addition, the hard and brittle micro-nanostructure is an important obstacle limiting the practical application of superhydrophobic surfaces. Herein, the flexible poly(vinylidene fluoride) (PVDF) is employed to stabilize the rigid plasmonic titanium nitride (TiN) particles, and then a micro-hexagonal network structure containing fibers and knots is constructed on the surface of insulated titania nanotube layer by electrospinning. This photothermal superhydrophobic layer achieves a remarkable temperature increase of 75.3 °C under 1 Sun illumination, driven by high solar absorption, plasmon resonance, and enhanced thermal insulation. The surface exhibits excellent superhydrophobicity, enabling superior anti-icing and anti-frosting performance, even under reduced illumination (0.35 Sun). At −23 °C, the surface remains frost-free for up to 9 h and can melt ice within 300 s. This design offers significant potential for applications in transportation, energy systems, and other critical infrastructures.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101625"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Topological materials for near-field radiative heat transfer” [Mater. Today Phys., Volume 46, August 2024, 101489]","authors":"Azadeh Didari-Bader ,&nbsp;Seonyeong Kim ,&nbsp;Heejin Choi ,&nbsp;Sunae Seo ,&nbsp;Piyali Biswas ,&nbsp;Heejeong Jeong ,&nbsp;Chang-Won Lee","doi":"10.1016/j.mtphys.2024.101629","DOIUrl":"10.1016/j.mtphys.2024.101629","url":null,"abstract":"","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101629"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ferroelectric memristor and its neuromorphic computing applications","authors":"Junmei Du ,&nbsp;Bai Sun ,&nbsp;Chuan Yang ,&nbsp;Zelin Cao ,&nbsp;Guangdong Zhou ,&nbsp;Hongyan Wang ,&nbsp;Yuanzheng Chen","doi":"10.1016/j.mtphys.2024.101607","DOIUrl":"10.1016/j.mtphys.2024.101607","url":null,"abstract":"<div><div>Ferroelectric memristors, characterized by spontaneous polarization ferroelectric materials as a functional layer of memristor, yields unique ferroelectric resistive switching behaviours under a reversal electric field. This device demonstrates notable capability in the stable and precise emulation of synaptic and neuronal functions, analogous to those in the human brain, offering an attractive option for neuromorphic computing. With the development of nanotechnology and nano-ferroelectric materials, the advent of nano-ferroelectric memristors enables their incorporation into dense crossbar arrays, enhancing the density and efficiency of neuromorphic computing. In this review, we offer a comprehensive overview of ferroelectric memristor and its neuromorphic computing applications, including the recent progress, existing challenges and possible solutions, as well as future development direction.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101607"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142758560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SrTiO3 enhanced high thermal conductivity and emissivity PVDF composite films for radiative cooling","authors":"Yulong Qiao ,&nbsp;Mengyang Wang ,&nbsp;Hewei Ding ,&nbsp;Jin Li ,&nbsp;Junmei Zhang ,&nbsp;Guiguang Qi ,&nbsp;Xiongbo Yang ,&nbsp;Xinyu Tan","doi":"10.1016/j.mtphys.2024.101637","DOIUrl":"10.1016/j.mtphys.2024.101637","url":null,"abstract":"<div><div>When using high-power devices outdoors, especially in sunny summers, power losses coupled with direct sunlight can cause devices to overheat. This overheating not only disrupts their normal functioning but also increases the risk of fire accidents. To address this issue, the flexible polyvinylidene fluoride (PVDF)/strontium titanate (SrTiO₃, denoted as ST) composite films (abbreviated as P-S-x where x represents the mass ratio of PVDF to ST, x = 0.5, 1, 1.5, 1.75) were developed through a simple mixing method. Outdoor Radiant Cooling tests demonstrate that the P-S-1.75 sample exhibits an average cooling effect ∼14.2 °C compared with pure PVDF sample and an average cooling effect ∼20.2 °C compared with a bare Al sample. The P-S-1.75 sample with a thickness of 115 μm achieves exceptional performance in the broadband mid-infrared range from 2.5 to 25 μm with an average emissivity reaching about 97 %. And the max reflectance of P-S-1.75 sample reaches 90 % in the range of 0.5–2.0 μm. Furthermore, P-S-1.75 sample obtains a thermal conductivity ∼1.97 W/(m·K) which is about ten times higher than that of pure PVDF (0.2 W/(m·K)), and a cooling effect of 11.7 °C on the ceramic heating plate was obtained. The outstanding cooling performance exhibited by P-S-1.75 coating can be attributed to its exceptional radiative cooling capacity and high thermal conductivity. This work provides a new idea to obtain polymer/ceramic composite materials with excellent radiative cooling performance in cooling applications.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101637"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142879930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transforming high-resolution imaging: A comprehensive review of advances in metasurfaces and metalenses","authors":"Nikolay Lvovich Kazanskiy ,&nbsp;Svetlana Nikolaevna Khonina ,&nbsp;Muhammad Ali Butt","doi":"10.1016/j.mtphys.2024.101628","DOIUrl":"10.1016/j.mtphys.2024.101628","url":null,"abstract":"<div><div>Meta-optics, particularly through the use of metasurfaces (MSs), have revolutionized high-resolution imaging (HRI) by enabling unprecedented control over light at the subwavelength scale. Metalenses (MLs), a key component of meta-optics, can correct chromatic aberrations and focus light with extreme precision, surpassing the limitations of traditional optics. Their compact design and ability to manipulate various wavelengths and polarizations of light allow for ultra-thin, lightweight imaging systems with enhanced resolution. These advancements are pushing the boundaries of imaging technologies in applications such as microscopy, sensing, and even consumer electronics. This review highlights recent advancements in MSs, with a focus on MLs for HRI. Additionally, the integration of deep learning techniques is explored, demonstrating enhanced imaging performance. Prospects and potential developments in ML technology are discussed, providing insights into their role in advancing next-generation imaging systems.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101628"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142820737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal conductive radiative cooling film for local heat dissipation","authors":"Qin Ye ,&nbsp;Xingyu Chen ,&nbsp;Hongjie Yan,&nbsp;Meijie Chen","doi":"10.1016/j.mtphys.2024.101626","DOIUrl":"10.1016/j.mtphys.2024.101626","url":null,"abstract":"<div><div>Radiative cooling has attracted lots of attention recently due to its electricity-free cooling by reflecting solar radiation and emitting thermal radiation to the cold outer space. However, how to improve heat dissipation performance at above-ambient temperatures is still a challenge for outdoor flexible devices. Here a bilayer structure was designed to achieve a thin and thermal conductive radiative cooling film for local heat dissipation in outdoor flexible devices, the local heating area can be avoided by the high in-plane thermal conductive performance and heat can be efficiently dissipated to the outer environment by daytime radiative cooling. The top layer consisted of porous hBN@PVDF-HFP film (thickness ∼ 100 μm) to realize daytime radiative cooling while the bottom layer was the directional graphene film (thickness ∼ 30 μm) to promote in-plane thermal conductive performance, high solar reflectance <span><math><mrow><msub><mover><mi>R</mi><mo>‾</mo></mover><mtext>solar</mtext></msub></mrow></math></span> = 0.944, thermal emittance <span><math><mrow><msub><mover><mi>ε</mi><mo>‾</mo></mover><mtext>LWIR</mtext></msub></mrow></math></span> = 0.904, and in-plane thermal diffusivity 185.7 mm² s⁻¹ were obtained. Under sunlight, the designed radiative cooling film can greatly reduce the local working temperature from 130.6 °C to 63.3 °C compared with the reference radiative cooling film at the same local heating power, which also shows great local heat dissipation performance under a non-flat surface. This work provides a potential approach to developing thermal conductive radiative cooling technologies for outdoor local heat dissipation applications.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101626"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142816014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomic imprint crystallization: Externally-templated crystallization of amorphous silicon","authors":"Koichi Tanaka ,&nbsp;Connor P. Horn ,&nbsp;Jianguo Wen ,&nbsp;Rachel E. Koritala ,&nbsp;Supratik Guha","doi":"10.1016/j.mtphys.2024.101599","DOIUrl":"10.1016/j.mtphys.2024.101599","url":null,"abstract":"<div><div>In this paper, we demonstrate the crystallization of an amorphous Si layer via atomic imprint crystallization (AIC), where an amorphous Si layer is crystallized by solid phase epitaxy (SPE) from an externally impressed single-crystal Si template that is then peeled off via delamination following crystallization. Microstructural analysis using electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) studies of the delaminated (crystallized) films reveals that the top surface of the amorphous Si layer is crystallized by SPE with regions (up to ∼5 mm diameter) composed of epitaxial domains (lateral size of few μm), all of which bear the same crystalline orientation as that of the template crystal. Unlike conventional SPE, the crystallization is not uniform across the entire region: the grains contain crystal defects such as dislocations, stacking faults, and twins; and while the crystallization is initiated at the top surface of the film, the thickness of the single-crystalline area is limited to ∼40 nm from the top surface. Clearly, the AIC approach leads to SPE (aligned with the template's crystalline orientation) over areas as large as few mms, but the crystallization is defective and incomplete through the film. We attribute this to be a consequence of the tensile stress field created at the amorphous/crystalline frontline by the volume change of amorphous Si during the crystallization. Our results establish the feasibility of imprint crystallization, and points to the direction of a new process that may enable the creation of single crystal pockets in integrated device stacks in a scalable fashion without the need for an underlying single crystal substrate. However, our results also indicate that the crystallization is of a poor quality and indicates the need for further optimization of the crystallization method.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101599"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142678994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Migration and evolution of iodine in perovskite solar cells","authors":"Xiaoting Ma ,&nbsp;Ronghua Luo ,&nbsp;Xiongjie Li ,&nbsp;Haixuan Yu ,&nbsp;Junyi Huang ,&nbsp;Wanpeng Yang ,&nbsp;Haodan Shi ,&nbsp;Yan Shen ,&nbsp;Mingkui Wang","doi":"10.1016/j.mtphys.2024.101616","DOIUrl":"10.1016/j.mtphys.2024.101616","url":null,"abstract":"<div><div>Perovskite solar cells (PSCs) have rapidly gained prominence in photovoltaics, achieving impressive advancements in power conversion efficiency (PCE), increasing from 3.8 % to over 26 % in just a decade. We have seen many ideas and additives one after another on the way to improving device efficiency. A feature of perovskite solar cells is that once a certified power conversion efficiency has been reported, it appears that most plausible additives can accomplish the same job in increasing device performance. A familiar story with graphene. There is an old saying in China about a black bear in a corn forest that will never get the super corn it wanted. We must focus on the critical issues of the PSCs and find a suitable solution for them. Otherwise, strategies or methods of temporary relief, regardless of the consequences, would not provide a boost to the development of this emerging technology. For example, the long-term stability of PSCs remains a major challenge, particularly due to the migration of iodine ions, which can lead to degradation through redox reactions and the formation of corrosive iodine species, such as I₂ and I₃⁻. Chemically reactive iodine species can further damage the perovskite layer and adjacent components, shortening the device longevity. Here, we first examine the origin of iodine ion migration and the development of iodine defects in perovskites. The migration of iodine ions and the formation of their byproducts can trigger self-catalyzed degradation reactions during the operation of PSCs. We summarize strategies to address this issue, including composition regulation, grain boundary passivation, crystallization control, and the use of redox-active additives and interfacial barrier layers. These methods show promising potential for resolving iodine defects and improving the operational durability of PSCs. By developing multifunctional additives or using multiple strategies in combination, the migration and evolution of iodine ions can be controlled more effectively. Finally, we propose the introduction of new approaches from other scientific fields to inhibit ion migration and capture volatile iodine, and discuss their applicability in PSCs to achieve long-term operational stability.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101616"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142788720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-firing BaMg₂V₂O₈-based composites featuring novel ultra-low permittivity and low loss for dual-band 6G antenna applications","authors":"Burhan Ullah ,&nbsp;Yixin Yang ,&nbsp;Millicent Appiah ,&nbsp;Yuting Xiao ,&nbsp;Daniel Q. Tan","doi":"10.1016/j.mtphys.2024.101624","DOIUrl":"10.1016/j.mtphys.2024.101624","url":null,"abstract":"<div><div>The BaMg₂V₂O₈-based ceramic composites provide a high-performance, industrially viable solution, bridging the gap between polymer and ceramic dielectrics. While polymer-dielectrics are favored in flexible electronics for their low permittivity (ε_r) and compatibility with low-temperature processing, they fall short in thermal stability, mechanical strength, and long-term reliability that ceramics excel in. Our newly developed ceramic composites address these limitations by featuring an ultra-low ε_r, which is essential for 6G communication. Significant efforts have been directed towards optimizing the microwave dielectric properties of the composites by manipulating lattice structures and polarization mechanisms. This has led to the successful development of Ba₀.₈₅Sr₀.₁₅Mg₁.₉₈Zn₀.₀₂V₂O₈–<em>x</em>wt.%Li₂CO₃ ceramic composites within the composition range of 0.0 ≤ <em>x</em> ≤ 1.75. This tailored composition results in a solid solution that coexists with both tetragonal (T-phase: ε_r = 13.03, Q × f = 55,356 GHz at f ≥ 9 GHz, τ_f = −5.3 ppm/°C at <em>x</em> = 0.75) and orthorhombic phases (O-phase: ε_r = 3.96, Q × f = 73,775 GHz at f ≥ 17 GHz, τ_f ∼ −6.1 ppm/°C at <em>x</em> = 0.75), achieving an ultra-low ε_r with balanced Q × f values and a temperature coefficient of resonance frequency after sintering at approximately 840 °C/4h. The variation in ε_r and Q × f-values is attributed to the distortion and deformation of Ba-O₈ polyhedra, as well as the full width at half maximum (FWHM) values of the Eg_(Ba) and A_1g Raman modes. The phase coexistence enables tunability of dual-frequency band antennas, providing flexible solutions for advanced communication.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"50 ","pages":"Article 101624"},"PeriodicalIF":10.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}