Applied Physics Letters最新文献_第10页

MoS2 encapsulated FeS2 composite anchored on graphite substrate for high-performance sodium-ion batteries 基于石墨衬底的MoS2封装FeS2复合材料用于高性能钠离子电池

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0279637

Kai Shi, Kai Zhou, Jun Ma, Qingtian Li, Pengfei Hou, Yuning Cui, Xing Meng, Hailong Qiu, Di Jin

{"title":"MoS2 encapsulated FeS2 composite anchored on graphite substrate for high-performance sodium-ion batteries","authors":"Kai Shi, Kai Zhou, Jun Ma, Qingtian Li, Pengfei Hou, Yuning Cui, Xing Meng, Hailong Qiu, Di Jin","doi":"10.1063/5.0279637","DOIUrl":"https://doi.org/10.1063/5.0279637","url":null,"abstract":"Transition metal sulfides (TMSs) are currently recognized as promising anode materials for sodium-ion batteries owing to their high theoretical capacities and relatively weak M–S bonds. However, TMSs face significant challenges during cycling, particularly poor electronic conductivity and severe volume expansion, impeding their practical applications. In this study, FeS2–MoS2/C multicomponent composite materials are synthesized through a molten salt synthesis route, followed by high-temperature sulfurization. The FeS2–MoS2 heterostructure significantly improves both ion and electron transfer, offering a wealth of active sites. The graphite carbon layer acts as a robust support and conductive framework for FeS2–MoS2, ensuring uniform dispersion of active components. This unique architecture, combined with the asynchronous redox behavior of FeS2 and MoS2, effectively mitigates volume expansion during sodium insertion/extraction, maintaining structural stability and improving the cycling stability of the electrode material. The FeS2–MoS2/C composite exhibits exceptional electrochemical performance, achieving a sustained specific capacity of 478.5 mA h g−1 after 3000 cycles at 5000 mA g−1, with an impressive capacity retention rate of 97.2%. Additionally, it demonstrates excellent rate capability and high-temperature adaptability. Even at 60 °C, the electrode delivers a reversible discharge capacity of 515.6 mA h g−1 after 600 cycles at 2 A g−1.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"23 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144515317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Upper coherent interlayers using Cl-SnO2 for improved charge dynamics and efficient inverted perovskite photovoltaics 使用Cl-SnO2改善电荷动力学和高效倒置钙钛矿光伏的上相干中间层

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0268506

Xiangyang Liu, Xinsheng Liu, Haoqi Guan, Junhao Liang, Chuting Huang, Xingyang Lin, Chuanyu Xu, Yujing Meng, Kexin Li

{"title":"Upper coherent interlayers using Cl-SnO2 for improved charge dynamics and efficient inverted perovskite photovoltaics","authors":"Xiangyang Liu, Xinsheng Liu, Haoqi Guan, Junhao Liang, Chuting Huang, Xingyang Lin, Chuanyu Xu, Yujing Meng, Kexin Li","doi":"10.1063/5.0268506","DOIUrl":"https://doi.org/10.1063/5.0268506","url":null,"abstract":"In recent years, inverted perovskite solar cells (IPVSCs) with a p–i–n structure have attracted widespread attention because of their easy fabrication, cost-effectiveness, suppressed hysteresis, superior operating stability, and low-temperature manufacturing techniques. The inorganic electron transport layers (ETLs) using tin oxide (SnO2) can replace the organic n-type materials to further enhance the device performance and operational stability. The SnO2 nanocrystals were prepared using perchloric acid and dispersed with organic solvents to form the Cl-bonded SnO2 solution. The coupling effect between the Cl-bonded SnO2 film and the Cl-containing perovskite precursor will form a coherent interlayer. This upper coherent interlayer will distinctly suppress charge non-radiative recombination and promote carrier extraction. The high crystallinity of the Cl-bonded SnO2 can also enhance fusion between grains, reduce grain boundaries, and improve the film conductivity. Here, the IPVSCs using all-metal-oxide charge transport materials (CTMs) have achieved the optimal performance with a power conversion efficiency of 23.26% (a VOC of 1.158 V, a JSC of 24.29 mA cm−2, and an FF of 0.827). The adopted all-metal-oxide CTMs can also improve the ambient stability, thermal stability, and light stability. In addition, the dynamic process (charge extraction and recombination) was analyzed in detail. The directly spin-coated Cl-SnO2 ETLs will provide a simple strategy for scalable preparation and commercialization of IPVSCs.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"25 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fast-response low-power atomic oven for integration into an ion microchip 用于集成到离子微芯片中的快速响应低功耗原子烤箱

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0271048

Vijay Kumar, Martin Siegele-Brown, Parsa Rahimi, Matthew Aylett, Sebastian Weidt, Winfried Karl Hensinger

引用次数: 0

Van der Waals epitaxy of (BA)2PbI4/WSe2 heterostructures with strong interlayer exciton emission 具有强层间激子发射的（BA）2PbI4/WSe2异质结构的Van der Waals外延

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0274079

Chang Lu, Mengya Li, Yuxuan He, Fengyi Zhang, Han Huang, Xiaoming Yuan

{"title":"Van der Waals epitaxy of (BA)2PbI4/WSe2 heterostructures with strong interlayer exciton emission","authors":"Chang Lu, Mengya Li, Yuxuan He, Fengyi Zhang, Han Huang, Xiaoming Yuan","doi":"10.1063/5.0274079","DOIUrl":"https://doi.org/10.1063/5.0274079","url":null,"abstract":"Van der Waals (vdW) epitaxy enables tailored excitonic interactions and charge separation in two-dimensional (2D) perovskite heterostructures, addressing optoelectronic integration challenges. Utilizing a two-step chemical vapor deposition process, pre-deposited PbI2 layers on monolayer WSe2 are transformed to (BA)2PbI4 by controlled introducing of BAI vapor during the second growth, overcoming challenges of (BA)2PbI4 formation caused by low organic ligand mobility and limited PbI2 vapor pressure. This method facilitates the growth of nanosheets and thickness-tunable (BA)2PbI4 nanofilm, achieving strong interlayer coupling as evidenced by dominant interlayer exciton (IX) emissions at 83 K. Notably, epitaxial heterostructures exhibit interlayer coupling coefficients of 0.75 for nanosheets and 0.65 for nanofilm, outperforming transferred heterostructures and highlighting the advantage of the vdW epitaxy in improving interfacial exciton interactions and structural precision. Additionally, laser-induced IX emission blue shifts up to 111 meV in epitaxial grown (BA)2PbI4/WSe2 samples, confirming superior excitonic interactions and coupling strength. These findings demonstrate the feasibility of vdW epitaxy for integrating organic 2D perovskites with TMDCs, establishing the structural and optical significance of such heterostructures for exploring IX physics.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"3 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineered MoSe2-CuO interfaces for next-generation non-enzymatic glucose sensors 设计用于下一代非酶葡萄糖传感器的MoSe2-CuO接口

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0274483

Rashbihari Layek, Subrata Biswas, Pathik Kumbhakar

{"title":"Engineered MoSe2-CuO interfaces for next-generation non-enzymatic glucose sensors","authors":"Rashbihari Layek, Subrata Biswas, Pathik Kumbhakar","doi":"10.1063/5.0274483","DOIUrl":"https://doi.org/10.1063/5.0274483","url":null,"abstract":"The development of highly sensitive, stable, and cost-effective glucose sensors is critical for non-enzymatic glucose detection. Traditional enzymatic sensors suffer from poor stability and operational constraints, while some non-enzymatic sensors are expensive, prone to interference, and have short detection ranges. To address these challenges, the MoSe2-CuO nanocomposite has been prepared as an excellent electrocatalyst for glucose oxidation, leveraging the synergistic properties of two-dimensional (2D) transition metal dichalcogenides and metal oxides. The MoSe2-CuO heterostructures show enhanced electrochemical response due to strong interfacial coupling, improved electron transport, and abundant active sites for glucose adsorption and oxidation. It is found that the MoSe2-CuO nanocomposite-based sensor possesses a fast response time of 3 s, a low limit of detection of 0.025 μM, a high sensitivity of 2406 μA mM−1 cm−2, and a broad linear range for glucose detection. Furthermore, the composite electrode demonstrates excellent selectivity against common interfering species and exhibits long-term stability, ensuring reliability for real-world applications. The practical applicability of the proposed sensor is also validated through glucose detection in a fruit juice sample. Thus, the MoSe2-CuO nanocomposite may pave the way for next-generation non-enzymatic glucose sensors with high efficiency, stability, and affordability for its real-life applications.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"18 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","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 steerable polarization conversion in metasurfaces with parity-time phase transition 具有奇偶时相变的超表面中可操纵偏振转换的观察

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0275796

Yubo Ma, Xin Qi, Ye Yu, Chao Wu, Mina Ren, Zhiwei Guo, Yunhui Li, Haitao Jiang, Yaping Yang, Hong Chen, Yong Sun

{"title":"Observation of steerable polarization conversion in metasurfaces with parity-time phase transition","authors":"Yubo Ma, Xin Qi, Ye Yu, Chao Wu, Mina Ren, Zhiwei Guo, Yunhui Li, Haitao Jiang, Yaping Yang, Hong Chen, Yong Sun","doi":"10.1063/5.0275796","DOIUrl":"https://doi.org/10.1063/5.0275796","url":null,"abstract":"One of the primary objectives in the realm of light manipulation is the flexible and active control of polarization, which constitutes an essential degree of freedom of photons. Recently, it has been demonstrated that the polarization conversion is related to the parity-time (PT) symmetry in metasurfaces. Here, we propose a scheme for achieving near-perfect polarization conversions under unilateral linear polarized excitation, based on passive metasurfaces with an effective PT phase transition. The conversion from linear to circular polarization occurs at the exceptional point (EP), with the transmission polarization revealing the missing dimension of EP. To enhance linear polarization conversion efficiency, equivalent coherent excitation is induced, enabling near-perfect cross-polarization conversion. This effective manipulation also provides additional control over PT phase transitions and allows PT symmetry breaking at different coupling strengths. Experimental validation at microwave frequencies confirms the feasibility of this method, with potential extensions to terahertz and near-infrared bands. These findings not only introduce a PT-symmetric metasurface-inspired approach for exploring a wider range of phenomena in non-Hermitian physics but also hold great potential for scalable polarization and phase controlling, imaging, and other related areas based on a single-port configuration.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"195 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

All-dielectric quasi-BIC metasurface with strong coupling control by adjusting the loss—potential for vibrational strong coupling 通过调节振动强耦合损失势实现强耦合控制的全介质准bic超表面

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-30 DOI: 10.1063/5.0276130

Wenwen Sun, Fuming Yang, Xiaoyan Shi, Yongjun Dong, Rui Dai, Yan Jia, Wei Xin, Jin Huan Li, Zhe Wu, Zhongzhu Liang

{"title":"All-dielectric quasi-BIC metasurface with strong coupling control by adjusting the loss—potential for vibrational strong coupling","authors":"Wenwen Sun, Fuming Yang, Xiaoyan Shi, Yongjun Dong, Rui Dai, Yan Jia, Wei Xin, Jin Huan Li, Zhe Wu, Zhongzhu Liang","doi":"10.1063/5.0276130","DOIUrl":"https://doi.org/10.1063/5.0276130","url":null,"abstract":"Vibrational strong coupling (VSC) has promising applications in chemical reactions, molecular spectroscopy, and biochemical sensing. VSC can be achieved using plasma nanostructures. However, effective coupling between plasma nanostructures and molecules is often hindered by the metal materials used. Dielectric metasurfaces offer significant advantages and can effectively excite VSC, but the implementation of VSC through dielectric metasurfaces has not been widely investigated. Here, a mid-infrared all-dielectric metasurface to realize strong coupling control driven by quasi-bound states in the continuum (QBIC) is proposed. By coupling with polymethyl methacrylate (PMMA) molecules, a significant spectral splitting occurred. A 50-nm-thick PMMA layer increases the molecular signal amplification factor to 91%. Adjusting structural asymmetry parameters and utilizing the high Q factor of the QBIC mode allows flexible modulation of the coupling state. A strong coupling phenomenon is also observed with an oscillator absorption strength (Δε) 0.02 and a 5 nm PMMA thickness. Refractive index sensing analysis indicates a sensitivity of 2118 nm RIU−1, with a maximum figure of merit of 4089 RIU−1. This study highlights the potential of vibrational strong coupling for advancing biochemical sensing and polaritonic chemistry applications.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"70 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parallel wavefront single-pixel imaging 平行波前单像素成像

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-27 DOI: 10.1063/5.0274196

Zixian Yin, Yuxin Lu, Bochao Hu, Xinlong Liu, Aiping Zhai, Dong Wang

引用次数: 0

Nonlinear Seebeck effect in Ni81Fe19|Pt at room temperature 室温下ni81fe19|pt中的非线性塞贝克效应

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-27 DOI: 10.1063/5.0269578

Y. Hirata, T. Kikkawa, H. Arisawa, E. Saitoh

引用次数: 0

Effective reduction in thermal conductivity by high-density dislocations in SrTiO3 SrTiO3高密度位错有效降低导热系数

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-06-26 DOI: 10.1063/5.0271392

Jinxue Ding, Jiawen Zhang, Jinfeng Dong, Kimitaka Higuchi, Atsutomo Nakamura, Wenjun Lu, Bo Sun, Xufei Fang

{"title":"Effective reduction in thermal conductivity by high-density dislocations in SrTiO3","authors":"Jinxue Ding, Jiawen Zhang, Jinfeng Dong, Kimitaka Higuchi, Atsutomo Nakamura, Wenjun Lu, Bo Sun, Xufei Fang","doi":"10.1063/5.0271392","DOIUrl":"https://doi.org/10.1063/5.0271392","url":null,"abstract":"Decreasing thermal conductivity is important for designing efficient thermoelectric devices. Traditional engineering strategies have focused on point defects and interface design. Recently, dislocations as line defects have emerged as an additional tool for regulating thermal conductivity. In ceramics-based thermoelectric materials, the key challenge lies in achieving a sufficiently high dislocation density to effectively scatter phonons, as the typical dislocation density in ceramics after bulk deformation is constrained to ∼1012 m−2. In this work, we adopted the mechanical imprinting method and achieved a dislocation density of ∼1015 m−2 in single-crystal SrTiO3, which is known for its room-temperature plasticity and acts as a promising material for thermoelectric applications. Using the time-domain thermoreflectance method, we measured a ∼50% reduction in thermal conductivity over a broad temperature range (80–400 K) with the engineered high-density dislocations. These results suggest that tuning dislocations could offer an alternative path to minimizing thermal conductivity for engineering thermoelectric materials.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"9 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144488460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0