Materials Today Physics最新文献

Strong Electronic Correlation-Driven Topological Superconductivity and Exotic Transport Properties in ZrCl Monolayer ZrCl单层中强电子相关驱动的拓扑超导性和奇异输运性质

IF 11.5 2区材料科学

Materials Today Physics Pub Date : 2025-10-14 DOI: 10.1016/j.mtphys.2025.101888

Jinghua Zhao, Zhengxin Yan, Juntao Kong, Yu Wang, Kezhao Xiong, Chen Qi, Zhaoqi Wang

{"title":"Strong Electronic Correlation-Driven Topological Superconductivity and Exotic Transport Properties in ZrCl Monolayer","authors":"Jinghua Zhao, Zhengxin Yan, Juntao Kong, Yu Wang, Kezhao Xiong, Chen Qi, Zhaoqi Wang","doi":"10.1016/j.mtphys.2025.101888","DOIUrl":"https://doi.org/10.1016/j.mtphys.2025.101888","url":null,"abstract":"Low dimensional topological superconductors with nontrivial topological structures and robust dissipationless edge states are widely regarded as a pivotal physical platform for realizing reliable quantum information processing. Combining first-principles calculations and numerical simulations, we identify the ZrCl monolayer as a topological superconductor, evidenced by a nontrivial Z<sub>2</sub> topological invariant (Z<sub>2</sub> = 1). Our research demonstrates that ZrCl is a strongly coupled topological superconductor with two energy gaps (Δ<sub>α</sub> =2.45 meV, Δ<sub>β</sub>= 3.1 meV) and a high superconducting transition temperature of 12.3 K. Further analysis within the Bogoliubov-de Gennes theoretical framework reveals that tuning the chemical potential within a specific range (−0.13 < μ < 1.2 meV) can induce spatial symmetry breaking, thereby triggering band inversion and topological phase transitions. Intriguingly, electron-phonon coupling (EPC) in the system further enhances the transport performance of its edge states by generating self-trapped excitons (STEs), where the interaction between STEs and transverse optical phonons renormalizes the edge state energies. These results uncover the profound synergy between topological protection mechanisms and lattice dynamics, enabling the regulation of quantum states with robust edge modes in the ZrCl monolayer. This opens a new path for material design oriented toward fault tolerant qubits and highly sensitive topological devices.","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"125 1","pages":""},"PeriodicalIF":11.5,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283096","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}

引用次数: 0

A Bio-Inspired Tactile Sensor for Artificial Tactile Synapses 用于人工触觉突触的仿生触觉传感器

IF 11.5 2区材料科学

Materials Today Physics Pub Date : 2025-10-14 DOI: 10.1016/j.mtphys.2025.101890

Ling-Feng Liu, Zhe-Rui Zhao, Qi-Jun Sun, Guowu Tang, Xin-Gui Tang, Ye Zhou

{"title":"A Bio-Inspired Tactile Sensor for Artificial Tactile Synapses","authors":"Ling-Feng Liu, Zhe-Rui Zhao, Qi-Jun Sun, Guowu Tang, Xin-Gui Tang, Ye Zhou","doi":"10.1016/j.mtphys.2025.101890","DOIUrl":"https://doi.org/10.1016/j.mtphys.2025.101890","url":null,"abstract":"Human skin-inspired tactile perception holds transformative potential for dexterous robotic manipulation, intelligent medical rehabilitation, and immersive virtual reality. However, the development of high-fidelity artificial tactile neuron systems is constrained by the scarcity of biomimetic synapses capable of concurrent sensing and neuromorphic processing. This work introduces a high-performance piezoresistive tactile sensor fabricated via a facile parallel-microstructure design enhanced with carbon powder-modified conductive pathways. The sensor achieves ultrahigh sensitivity (16.27 kPa<sup>-1</sup> in the 0-2 kPa range), a rapid response time (37 ms), and exceptional stability (>1,500 cycles). Its multimodal detection capabilities enable simultaneous monitoring of physiological signals and human motion kinematics. Furthermore, integration with a memristor establishes a fully functional artificial tactile neuron system. These findings provide a scalable architecture for merging high-sensitivity tactile sensing with neuromorphic computing, offering critical insights for advancing intelligent robotics, neuroprosthetics, and brain-machine interfaces that require human-like haptic intelligence.","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"77 1","pages":""},"PeriodicalIF":11.5,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145283518","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}

引用次数: 0

Direct evidence for two-gap superconductivity in hydrogen-intercalated titanium diselenide 插氢二硒化钛双间隙超导性的直接证据

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-10 DOI: 10.1016/j.mtphys.2025.101883

Erik Piatti , Gaia Gavello , Giovanni A. Ummarino , Filip Košuth , Pavol Szabó , Peter Samuely , Renato S. Gonnelli , Dario Daghero

{"title":"Direct evidence for two-gap superconductivity in hydrogen-intercalated titanium diselenide","authors":"Erik Piatti , Gaia Gavello , Giovanni A. Ummarino , Filip Košuth , Pavol Szabó , Peter Samuely , Renato S. Gonnelli , Dario Daghero","doi":"10.1016/j.mtphys.2025.101883","DOIUrl":"10.1016/j.mtphys.2025.101883","url":null,"abstract":"<div><div>Transition-metal dichalcogenides (TMDs) offer an extremely rich material platform in the exploration of unconventional superconductivity. The unconventional aspects include exotic coupling mechanisms such as the Ising pairing, a complex interplay with other electronic orders such as charge-density waves (CDWs), symmetry-breaking and topological effects, and non-trivial gap structures such as multi-gap and possible nodal phases. Among TMDs, titanium diselenide (1<span><math><mi>T</mi></math></span>-TiSe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>) is one of the most studied and debated cases. Hints to an anomalous structure of its superconducting order parameter have emerged over the years, possibly linked to its texturing in real and reciprocal space due to the presence of a 2×2×2 CDW phase, or to a pressure-driven multi-band Fermi surface. However, direct evidence for an unconventional structure of the superconducting gap in this material is still lacking. In this work, the combination of the temperature dependence of the upper critical field with point-contact Andreev reflection and scanning tunneling spectroscopy measurements all consistently indicate the existence of two distinct superconducting gaps in the recently-discovered H-intercalated TiSe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> superconductor. These results provide unambiguous evidence for a non-trivial superconducting phase in TiSe<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> and stimulate further research aimed at clarifying its connection with the orbital character and its interplay with the underlying CDW order.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"59 ","pages":"Article 101883"},"PeriodicalIF":9.7,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145260718","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}

引用次数: 0

Cyclodextrin-mediated circularly polarized luminescence in achiral two-dimensional blue perovskites 非手性二维蓝钙钛矿中环糊精介导的圆偏振发光

IF 11.5 2区材料科学

Materials Today Physics Pub Date : 2025-10-08 DOI: 10.1016/j.mtphys.2025.101885

Tarak Nath Mandal, Sourav Mal, Deblina Das, Sangeun Cho, Atanu Jana

{"title":"Cyclodextrin-mediated circularly polarized luminescence in achiral two-dimensional blue perovskites","authors":"Tarak Nath Mandal, Sourav Mal, Deblina Das, Sangeun Cho, Atanu Jana","doi":"10.1016/j.mtphys.2025.101885","DOIUrl":"https://doi.org/10.1016/j.mtphys.2025.101885","url":null,"abstract":"Circularly polarized luminescence (CPL) typically arises from materials with intrinsic chirality, but generating CPL in structurally symmetric systems remains challenging. In this work, we report blue CPL emission from intrinsically achiral two-dimensional (2D) benzylammonium lead bromide nanocrystals (NCs) by employing supramolecular encapsulation with chiral cyclodextrins (α, β, and γ-CDXs). Host–guest interactions create a chiral microenvironment at the perovskite surface without disrupting its centrosymmetric lattice. The pristine NCs exhibit narrow-band blue emission with a photoluminescence quantum yield (PL QY) of 82%, which increases to 85–88% after CDX encapsulation. All CDX-functionalized NCs display circular dichroism and CPL activity, with γ-CDX inducing the strongest dissymmetry due to its larger cavity and enhanced exciton–dipole coupling. This work demonstrates the first example of blue CPL from achiral 2D perovskites and establishes a supramolecular route to symmetry breaking and chiroptical functionality. Beyond fundamental insights, this scalable, solution-based approach provides new opportunities for chiral optoelectronic and photonic device architectures.","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"6 1","pages":""},"PeriodicalIF":11.5,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241129","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}

引用次数: 0

Localized surface plasmon resonance-driven 71.9% EQE in Ga2O3 photodetectors: From photovoltaic enhancement to multifunctional optoelectronic logic gates integration 局域表面等离子体共振驱动Ga2O3光电探测器中的71.9% EQE：从光伏增强到多功能光电逻辑门集成

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-08 DOI: 10.1016/j.mtphys.2025.101886

Haolin Yang , Haowen Yang , Dan Zhang , Jili Xie , Qijun Sun , Guowu Tang , Titao Li , Xingui Tang , Wei Zheng

{"title":"Localized surface plasmon resonance-driven 71.9% EQE in Ga2O3 photodetectors: From photovoltaic enhancement to multifunctional optoelectronic logic gates integration","authors":"Haolin Yang , Haowen Yang , Dan Zhang , Jili Xie , Qijun Sun , Guowu Tang , Titao Li , Xingui Tang , Wei Zheng","doi":"10.1016/j.mtphys.2025.101886","DOIUrl":"10.1016/j.mtphys.2025.101886","url":null,"abstract":"<div><div>Ga<sub>2</sub>O<sub>3</sub>-based photodetectors with dual-band response characteristics hold great promise for realizing multifunctional optoelectronic logic gates (OELGs) in digital computing and secure communication. In this work, a hybrid organic-inorganic heterojunction based on PEDOT:PSS/Pt NPs/Ga<sub>2</sub>O<sub>3</sub>/GaN is designed to overcome the zero-bias performance bottleneck of conventional Ga<sub>2</sub>O<sub>3</sub> heterojunction photodetectors and to integrate multiple logic operations into a single device. Under 254 nm illumination and 0 V bias, the device achieves an ultra-high external quantum efficiency (<em>EQE</em>) of ∼71.9% via the localized surface plasmon resonance (LSPR) of platinum (Pt) nanoparticles (NPs) embedded at the PEDOT:PSS/Ga<sub>2</sub>O<sub>3</sub> interface. Statistics from twelve additional devices yield a median <em>EQE</em> of 71.3%. When an external bias is applied, the photodetector exhibits a tunable dual-band response in the UVC and UVA regions. By programming the bias voltage and optical inputs, six reconfigurable logic functions (NOR, NOT, NAND, XNOR, OR, and AND) are realized within a single unit, demonstrating its potential for parallel optical computing. Additionally, an encryption communication system based on these OELGs validates their applicability in secure data transmission, where dual-band signals can be dynamically encoded and decoded.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"59 ","pages":"Article 101886"},"PeriodicalIF":9.7,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145241126","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}

引用次数: 0

Enhanced stability and brightness for small CsPbX3nanocrystalsvia solvent and ligand controlling 通过控制溶剂和配体，提高了cspbx3纳米晶体的稳定性和亮度

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-01 DOI: 10.1016/j.mtphys.2025.101877

Wenbin Shi , Ping Yang , Xiao Zhang

{"title":"Enhanced stability and brightness for small CsPbX3nanocrystalsvia solvent and ligand controlling","authors":"Wenbin Shi , Ping Yang , Xiao Zhang","doi":"10.1016/j.mtphys.2025.101877","DOIUrl":"10.1016/j.mtphys.2025.101877","url":null,"abstract":"<div><div>CsPbX<sub>3</sub> (X = Cl, Br, I) nanocrystals (NCs) have attracted significant research interest for optoelectronic applications owing to their outstanding optical characteristics, including tunable band gaps, narrow luminescent peak and near-unity photoluminescence quantum yields (PLQYs). However, the practical application is limited by high synthesized temperature and inert atmosphere requirements during conventional hot-injection process. In this paper, the synthesis of CsPbX<sub>3</sub> (X = Cl, Br, and I) NCs in non-polar media was developed at room temperature using trimethylsilyl halides as halogen precursors and a ternary ligand system comprising dodecylbenzenesulfonic acid, oleic acid, and oleylamine. Namely, resulting CsPbBr<sub>3</sub> NCs display uniform dimensions averaging 5.5 nm. By precisely controlling Cs/Pb ratios, the phase compositions from zero-dimensional Cs<sub>4</sub>PbX<sub>6</sub> NCs to three-dimensional CsPbX<sub>3</sub> NCs were adjusted. CsPbBr<sub>3</sub> NCs created using optimized conditions exhibited outstanding PL properties including high PLQYs (94.4 %), narrow full width at half maxima (15 nm) of PL spectra, and remarkable environmental stability (>90 days). Cs/Pb ratios play important role for tunable PL, in which CsPbBr<sub>3</sub> samples revealed bright blue to green emitting while the PL of CsPbI<sub>3</sub> NCs was adjusted from green, yellow to red. These results are ascribed to the interface controlling via ligand growth kinetics. In addition, the CsPbX<sub>3</sub> NCs synthesized by this method can maintain high stability under UV irradiation and water contact conditions, showing the application potential in the field of display. This work establishes a novel strategy for ambient-temperature synthesis of high-quality perovskite NCs with tunable PL performance.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"58 ","pages":"Article 101877"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141163","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}

引用次数: 0

Construction of broad-spectrum light absorption inorganic ultra-black coating with multi-scale light-absorbing structures based on hollow CuCr2O4 spheres 基于空心CuCr2O4球的多尺度吸光结构广谱无机超黑涂层的制备

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-01 DOI: 10.1016/j.mtphys.2025.101884

Xudong Zhang , Hongjun Kang , Xin Jia , Qun Wang , Songtao Lu , Wei Qin , Xiaohong Wu

{"title":"Construction of broad-spectrum light absorption inorganic ultra-black coating with multi-scale light-absorbing structures based on hollow CuCr2O4 spheres","authors":"Xudong Zhang , Hongjun Kang , Xin Jia , Qun Wang , Songtao Lu , Wei Qin , Xiaohong Wu","doi":"10.1016/j.mtphys.2025.101884","DOIUrl":"10.1016/j.mtphys.2025.101884","url":null,"abstract":"<div><div>Ultra-black coating can suppress stray light to ensure high-quality imaging of the spacecraft optical instruments. Currently, the mainly used coating is an organic ultra-black coating, which is easy to generate volatile substances at high temperatures, and contaminate the lens, leading to a decline in imaging quality. Therefore, it is urgent to develop a highly stable inorganic ultra-black coating. Herein, we developed all-inorganic coating composed of hollow CuCr<sub>2</sub>O<sub>4</sub> microspheres (CuCr<sub>2</sub>O<sub>4</sub>-HS) and potassium silicate resin, which was fabricated through a spraying and self-assembly process. The solar absorptivity and average emissivity of CuCr<sub>2</sub>O<sub>4</sub>-HS coating (α = 96.26 %, <em>ε</em> = 92.21 %) is superior to that of commercial CuCr<sub>2</sub>O<sub>4</sub>-B coating (α = 94.43 %, <em>ε</em> = 88.79 %), and it shows a stable wide-angle absorption (up to an incident angle of 70°), which can be attributed to synergistic effects at both the nanoscale and molecular levels: (1) structural absorption resulting from multiple scattering within the CuCr<sub>2</sub>O<sub>4</sub> HS spherical close-packed arrays; and (2) strong forward scattering and internal multiple scattering by individual hollow spherical particles, as well as intrinsic light absorption due to LOMO–HOMO orbital transitions within the CuCr<sub>2</sub>O<sub>4</sub> particles. Moreover, the coatings also offer favorable thermal resistance (α = 96.06 %, <em>ε</em> = 92.08 % after exposure to 800 °C for 3 h), making them a promising candidate for ultra-black surfaces in hypersonic vehicles. The work provides a strategy for preparing a highly stable and ultra-black inorganic coating with wide-angle light absorption.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"58 ","pages":"Article 101884"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145247436","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}

引用次数: 0

Voltage-driven gated van der Pauw method for accurate channel and contact resistance extraction in oxide Thin-Film Transistors 电压驱动门控Van Der Pauw方法在氧化tft中精确提取通道和接触电阻

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-01 DOI: 10.1016/j.mtphys.2025.101880

Woo-Seok Lee , Arqum Ali , Jaeho Lee , Jiyoung Kim , Rino Choi , Jeong-Hwan Lee

{"title":"Voltage-driven gated van der Pauw method for accurate channel and contact resistance extraction in oxide Thin-Film Transistors","authors":"Woo-Seok Lee , Arqum Ali , Jaeho Lee , Jiyoung Kim , Rino Choi , Jeong-Hwan Lee","doi":"10.1016/j.mtphys.2025.101880","DOIUrl":"10.1016/j.mtphys.2025.101880","url":null,"abstract":"<div><div>Precise characterization of both channel and contact characteristics in p- and n-type oxide thin-film transistors (TFTs) is essential for the development of next-generation low-power complementary metal–oxide–semiconductor circuits. However, p-type oxide TFTs remain limited by inherently low hole concentrations and inefficient charge injections at the contacts, leading to high contact resistance and performance limitation. To address these challenges, a voltage-driven gated van der Pauw (V-gVDP) method is proposed, enabling the simultaneous and accurate extraction of the channel sheet conductance (<span><math><mrow><msub><mi>σ</mi><mi>S</mi></msub></mrow></math></span>) and the specific contact resistivity (<span><math><mrow><msub><mi>ρ</mi><mi>C</mi></msub></mrow></math></span>) compared to the conventional current-driven gVDP or the transmission line method (TLM). Voltage differences in the V-gVDP enable spatial decoupling and independent evaluation of channel and contact characteristics using a single device, without the need for control devices, with superior precision and reproducibility. The relative standard deviation (RSD) of the extracted sheet resistance (<em>R</em><sub><em>S</em></sub>) from the V-gVDP was reduced by factors of 6 and 46 for SnO and IGZO, respectively, while the RSD of <span><math><mrow><msub><mi>ρ</mi><mi>C</mi></msub></mrow></math></span> was improved by factors of 51 and 10 compared to the TLM. The V-gVDP method was successfully applied to both p-type SnO and n-type IGZO TFTs, confirming its robustness and versatility across different carrier polarities. These results demonstrate the potential of the V-gVDP method as a reliable and high-precision platform for characterizing oxide semiconductors and optimizing CMOS circuits and contact engineering.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"58 ","pages":"Article 101880"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188984","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}

引用次数: 0

Synergistic atomic-scale design realizes enhanced optical and infrared radiative properties in ZrO2/SBA-15 porous composites 协同原子尺度设计实现ZrO2/SBA-15多孔复合材料光学和红外辐射性能的增强

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-01 DOI: 10.1016/j.mtphys.2025.101881

Xinyu Wang , Yuzhi Zhang , Maofei Zhang , Rui Sun , Binghao Wang , Jiayu Ma , Hongyu Gu , Lingnan Wu , Lixin Song

{"title":"Synergistic atomic-scale design realizes enhanced optical and infrared radiative properties in ZrO2/SBA-15 porous composites","authors":"Xinyu Wang , Yuzhi Zhang , Maofei Zhang , Rui Sun , Binghao Wang , Jiayu Ma , Hongyu Gu , Lingnan Wu , Lixin Song","doi":"10.1016/j.mtphys.2025.101881","DOIUrl":"10.1016/j.mtphys.2025.101881","url":null,"abstract":"<div><div>The development of materials with both high solar reflectance and strong mid-infrared emissivity remains a major challenge. In this work, we report a ZrO<sub>2</sub>/SBA-15 hierarchical porous composite synthesized through a one-pot copolymerization strategy. By introducing Zr atoms into the SBA-15 framework and validating the mechanism using first-principles calculations, we achieve synergistic optimization of optical and structural properties. The incorporation of Zr suppresses defect states near the Fermi level, leading to a widened bandgap and enhanced reflectance in the UV–Vis region. The optimized 1.0ZrO<sub>2</sub>/SBA-15 composite exhibits an average solar reflectance of 96.8 % across the 0.3–2.5 μm wavelength range and an emissivity of 0.986 in the 8–13 μm range. This study demonstrates an atomic-scale structural design strategy that combines experimental synthesis with electronic structure calculations, offering new insights into the rational development of inorganic porous composites with enhanced optical performance.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"58 ","pages":"Article 101881"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188985","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}

引用次数: 0

Theory of the photomolecular effect 光电分子效应理论

IF 9.7 2区材料科学

Materials Today Physics Pub Date : 2025-10-01 DOI: 10.1016/j.mtphys.2025.101861

Michael J. Landry , Chuliang Fu , James H. Zhang , Jiachen Li , Gang Chen , Mingda Li

{"title":"Theory of the photomolecular effect","authors":"Michael J. Landry , Chuliang Fu , James H. Zhang , Jiachen Li , Gang Chen , Mingda Li","doi":"10.1016/j.mtphys.2025.101861","DOIUrl":"10.1016/j.mtphys.2025.101861","url":null,"abstract":"<div><div>It is well-known that water in liquid and vapor phases exhibits weak visible-light absorption. Recent experiments, however, show that at the liquid-air interface, absorption drastically increases, accelerating evaporation beyond thermal limits by 2–5 times. Strikingly, evaporation peaks at green wavelengths, despite no corresponding absorptance peak. The underlying mechanism of this observation, termed the photomolecular effect, remains puzzling, particularly as water molecules do not exhibit resonance peaks in the visible spectrum. Here, we present a theoretical model explaining the effect. We show that surface-bound water clusters undergo non-resonant photon-driven evaporation, with green light being particularly effective. Crucially, we do not expect green light to couple more strongly than other wavelengths to the molecules at the surface, rather the energy of green light is more effectively used to vaporize water. Our model accounts for why the evaporation peak does not align with absorptance and provides a quantum mechanical explanation of how a single photon can vaporize an entire molecular cluster. This model challenges conventional views on water-light interactions, revealing a fundamentally non-thermal evaporation mechanism. Our findings have implications for water purification, energy-efficient drying, and climate modeling, opening new pathways for optimizing evaporation-based technologies.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"58 ","pages":"Article 101861"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083659","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}

引用次数: 0