Current Applied Physics最新文献_第8页

Structural properties and ablation behaviors of homogeneous ZrC multi-layer coated on carbon/carbon composites via a multi-step vacuum plasma spray coating process 碳/碳复合材料表面多步真空等离子喷涂均匀ZrC多层膜的组织性能和烧蚀行为

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-23 DOI: 10.1016/j.cap.2025.09.020

A-Young Moon , Ho Seok Kim , Jong Geun Bae , Deog Gyun Cho , Woon-Yong Park , Se Youn Moon

{"title":"Structural properties and ablation behaviors of homogeneous ZrC multi-layer coated on carbon/carbon composites via a multi-step vacuum plasma spray coating process","authors":"A-Young Moon , Ho Seok Kim , Jong Geun Bae , Deog Gyun Cho , Woon-Yong Park , Se Youn Moon","doi":"10.1016/j.cap.2025.09.020","DOIUrl":"10.1016/j.cap.2025.09.020","url":null,"abstract":"<div><div>Ablation-resistant zirconium carbide (ZrC) layers were coated onto carbon/carbon (C/C) composites using vacuum plasma spraying. The structural and ablative characteristics of ZrC layers applied in single-versus multi-step coating processes were compared. An increase in the number of coating cycles from 4 to 20 in single-step coating increased the ZrC layer's thickness from 32.3 μm to 116.2 μm even though the coating rate per cycle was reduced from 8.1 μm/cycle to 5.8 μm/cycle. By increasing the number of cycles, the substrate surface was continuously heated, enhancing the lateral spread of molten droplets and improving the porosity and hardness of the ZrC layer. On the other hand, multi-step coating, involving repetition of the single-step process, yielded a 20% thickness increase of ZrC layers with a higher coating rate while maintaining comparable mechanical properties despite an identical total number of coating cycles. Furthermore, the multi-step-coated layers showed better thermal oxidation resistance than the single-step-coated layers due to the formation of ZrC/ZrC interfaces having larger grain boundaries and the thicker ZrC<sub>x</sub>O<sub>y</sub> layers, effectively barring oxygen diffusion. The multi-step coating of identical ZrC layers suggested the better thermal oxidation resistant protection way for C/C composite without the reduction of coated layer's properties.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 194-203"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

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Multifunctional optoelectronic element based on n-InSe layered semiconductor doped with rare-earth elements 基于掺稀土元素n-InSe层状半导体的多功能光电元件

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-22 DOI: 10.1016/j.cap.2025.09.019

T.G. Naghiyev , R.F. Babayeva , A. Sh Abdinov

引用次数: 0

Structural, electrical and optical properties of pure KNN and bismuth, antimony co-doped KNN ceramics (KNN – Bi, Sb) 纯KNN与铋、锑共掺KNN陶瓷（KNN - Bi, Sb）的结构、电学和光学性能

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-23 DOI: 10.1016/j.cap.2025.09.007

V.T. Thrivikraman, K. Sudheendran

{"title":"Structural, electrical and optical properties of pure KNN and bismuth, antimony co-doped KNN ceramics (KNN – Bi, Sb)","authors":"V.T. Thrivikraman, K. Sudheendran","doi":"10.1016/j.cap.2025.09.007","DOIUrl":"10.1016/j.cap.2025.09.007","url":null,"abstract":"<div><div>The structural, electrical, and optical properties of bismuth (Bi) and antimony (Sb) co-doped potassium sodium niobate (KNN) ceramics were systematically investigated with a focus on their potential for energy harvesting and optoelectronic applications. X-ray diffraction (XRD) analysis revealed notable structural modifications, including the presence of a secondary phase, indicating successful incorporation of dopants and associated lattice distortions. Scanning electron microscopy (SEM) demonstrated a reduction in grain size and the formation of dense microstructures, while energy-dispersive X-ray spectroscopy (EDS) confirmed the chemical homogeneity and purity of the synthesized ceramics.</div><div>Optical characterization using UV–Vis spectroscopy showed a narrowing of the band gap and enhanced transparency in the near-infrared region. Notably, the wavelength of maximum transmittance exhibited a red shift from approximately 400 nm–650 nm. Photoluminescence (PL) measurements revealed prominent blue-green emissions, which were attributed to defect-related electronic transitions, underscoring the influence of structural and electronic defects introduced by co-doping.</div><div>Dielectric properties were assessed using impedance spectroscopy, revealing an enhancement in the dielectric constant and overall energy conversion efficiency. The findings suggest that Bi and Sb co-doping effectively tailors the multifunctional properties of KNN ceramics, thereby enhancing their suitability for next-generation energy harvesting and optoelectronic devices.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 250-255"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145226827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

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Experimental and computational insights into optimizing polymer solar cell operational parameters 优化聚合物太阳能电池操作参数的实验和计算见解

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-10-02 DOI: 10.1016/j.cap.2025.10.003

Ibrar Ahmad , Syeeda Nida Alim , Khizar Hayat , Abdullah Shah , Sabir Shah , Said Karim Shah

{"title":"Experimental and computational insights into optimizing polymer solar cell operational parameters","authors":"Ibrar Ahmad , Syeeda Nida Alim , Khizar Hayat , Abdullah Shah , Sabir Shah , Said Karim Shah","doi":"10.1016/j.cap.2025.10.003","DOIUrl":"10.1016/j.cap.2025.10.003","url":null,"abstract":"<div><div>This study explores the impact of active layer (AL) thickness, annealing temperatures(ATs), and interfacial materials on the performance of polymer solar cells (PSCs) based on P3HT: PCBM. AL thickness was tuned by varying spin speeds (1000–5000 rpm), with devices D1K and D4K achieving PCEs of 2.37 % and 2.17 % after thermal annealing at 130 °C. Increasing the AT to 180 °C further enhanced device efficiency. The influence of interfacial layers LiF and Ca on PSC performance and thermal stability was also investigated. Ca/Al-based devices outperformed others at lower temperatures but degraded at higher temperatures, while LiF/Al-based devices showed reduced PCE beyond ∼110 °C. To complement experiments, simulations using drift-diffusion, exciton-diffusion, and transfer-matrix models(TMM) were performed. These provided insights into photon distribution, absorption, and carrier generation, supporting the experimental outcomes. The study offers a comprehensive understanding of the interplay between device architecture and thermal treatment in optimizing PSC performance.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 291-299"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145262496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

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Correlation between optical thermometry and Judd–Ofelt parameters in Er3+-doped perovskite oxides Er3+掺杂钙钛矿氧化物中光学测温与Judd-Ofelt参数的相关性

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-10-02 DOI: 10.1016/j.cap.2025.09.025

C.Y. Lee, J.H. Han, Y.S. Lee

引用次数: 0

Intrinsic chirality in two-dimensional dimer photonic crystals enabled by cross-polarization-suppressed bound states in the continuum 连续介质中交叉极化抑制束缚态使二维二聚体光子晶体的本征手性成为可能

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-19 DOI: 10.1016/j.cap.2025.09.015

Kyungnam Kang , Youngjun Chung , Gyuin Baek , Myungjae Lee

{"title":"Intrinsic chirality in two-dimensional dimer photonic crystals enabled by cross-polarization-suppressed bound states in the continuum","authors":"Kyungnam Kang , Youngjun Chung , Gyuin Baek , Myungjae Lee","doi":"10.1016/j.cap.2025.09.015","DOIUrl":"10.1016/j.cap.2025.09.015","url":null,"abstract":"<div><div>Breaking in-plane and out-of-plane symmetries in photonic crystals is key to achieving intrinsic chirality, enabling chiroptical responses and chiral emission. Bound states in the continuum enhance quality factors and light-matter interactions, but achieving both high quality factor and true intrinsic chirality is challenging, as three-dimensional chiral structures are complex to fabricate and conventional two-dimensional designs often rely on polarization conversion. Here, we demonstrate an intrinsically chiral two-dimensional planar photonic crystal slab based on a quasi-bound state in the continuum that breaks only in-plane symmetry using nanohole dimers. The proposed slab selectively couples to circular polarization regardless of incident direction without out-of-plane perturbations. Co-polarized circular dichroism and the degree of circular polarization of chiral emission reach −0.96 and 0.73, respectively, with a high quality factor of 4892. Our design is compatible with standard top-down lithography and offers potential for chiral lasing and sensing.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 169-175"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Fabrication and characterisation of high response Cu/ (PVA-CdWO4) / p-Si Schottky diode for Ultraviolet photo detection 紫外光探测用高响应Cu/ (PVA-CdWO4) / p-Si肖特基二极管的制备与表征

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-12 DOI: 10.1016/j.cap.2025.09.008

K.U. Aiswarya , K.J. Arun , M.D. Aggarwal

{"title":"Fabrication and characterisation of high response Cu/ (PVA-CdWO4) / p-Si Schottky diode for Ultraviolet photo detection","authors":"K.U. Aiswarya , K.J. Arun , M.D. Aggarwal","doi":"10.1016/j.cap.2025.09.008","DOIUrl":"10.1016/j.cap.2025.09.008","url":null,"abstract":"<div><div>In the present work, Metal Polymer Semiconductor (M-P-S) structured Schottky Barrier Diode (SBD) with copper metal, (PVA- CdWO<sub>4</sub>) polymer nanocomposite interfacial insulating layer and p-Si as semiconductor forming (Cu/(PVA- CdWO<sub>4</sub>)/p-Si) structure is fabricated and analysed for its photo detection properties. Studies has been done to investigate how the CdWO<sub>4</sub> content influences the morphological, structural, optical and electrical properties of the PVA- CdWO<sub>4</sub> composite films. Diode under illumination shows higher current values compared to dark indicating a high photo-responsive nature of the fabricated diodes. As the power of the illuminating source increases, the ideality factor decreases and barrier height increases. The photodiode parameters like Photo sensitivity, Responsivity, Quantum efficiency and Detectivity also enhances with CdWO<sub>4</sub> concentration and the MPS diode fabricated with 10 wt% of nanoparticles shows better results when illuminated by highest power light source where a responsivity of 101.24 mA/W and detectivity of 16.20 × 10<sup>10</sup> is observed.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 108-121"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Asymmetric-gate Mach–Zehnder interferometry in graphene: Multi-path conductance oscillations and visibility characteristics 石墨烯中的非对称门Mach-Zehnder干涉测量：多径电导振荡和可见性特性

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-22 DOI: 10.1016/j.cap.2025.09.016

Taegeun Song , Nojoon Myoung

{"title":"Asymmetric-gate Mach–Zehnder interferometry in graphene: Multi-path conductance oscillations and visibility characteristics","authors":"Taegeun Song , Nojoon Myoung","doi":"10.1016/j.cap.2025.09.016","DOIUrl":"10.1016/j.cap.2025.09.016","url":null,"abstract":"<div><div>Graphene provides an excellent platform for investigating electron quantum interference due to its outstanding coherent properties. In the quantum Hall regime, Mach–Zehnder (MZ) electronic interferometers are realized using p–n junctions in graphene, where electron interference is highly protected against decoherence. In this work, we present a phenomenological framework for graphene-based MZ interferometry with asymmetric p–n junction configurations. We show that the enclosed interferometer area can be tuned by asymmetric gate potentials, and additional MZ pathways emerge in higher-filling-factor scenarios, e.g., <span><math><mrow><mo>(</mo><msub><mi>ν</mi><mrow><mi>n</mi></mrow></msub><mo>,</mo><msub><mi>ν</mi><mrow><mi>p</mi></mrow></msub><mo>)</mo></mrow><mo>=</mo><mrow><mo>(</mo><mo>−</mo><mn>3</mn><mo>,</mo><mo>+</mo><mn>3</mn><mo>)</mo></mrow></math></span>. The resulting complicated beat oscillations in asymmetric-gate MZ interference are efficiently analyzed using a machine-learning-based Fourier transform, which yields improved peak-to-background ratios compared to conventional signal-processing techniques. Furthermore, we examine the impact of the asymmetric gate on the interference visibility, finding that interference visibility is enhanced under symmetric gate conditions.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 341-345"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Improvement of the flexibility of silica nanoparticle antireflection coatings by incorporating a poly(vinylpyrrolidone) binder 通过加入聚乙烯吡咯烷酮粘合剂改善二氧化硅纳米颗粒增透涂层的柔韧性

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-09-30 DOI: 10.1016/j.cap.2025.09.026

Tsung-Wei Zeng, Shih-Jie Mai

引用次数: 0

Photolithographically fabricated FR4-Based miniaturized implantable antenna with geometric tuning for biomedical telemetry in the MICS band 光刻制备基于fr4的微型化几何调谐植入式天线，用于MICS波段的生物医学遥测

IF 3.1 4区物理与天体物理

Current Applied Physics Pub Date : 2025-12-01 Epub Date: 2025-10-18 DOI: 10.1016/j.cap.2025.10.007

Min-Wen Wang , Wen-Quan Yan , Chun-Chieh Tseng , Jui-Han Lu , Ching-Chien Huang

{"title":"Photolithographically fabricated FR4-Based miniaturized implantable antenna with geometric tuning for biomedical telemetry in the MICS band","authors":"Min-Wen Wang , Wen-Quan Yan , Chun-Chieh Tseng , Jui-Han Lu , Ching-Chien Huang","doi":"10.1016/j.cap.2025.10.007","DOIUrl":"10.1016/j.cap.2025.10.007","url":null,"abstract":"<div><div>This work reports the design, fabrication, and validation of a miniaturized circular monopole antenna for implantable biomedical telemetry in the MICS band. The antenna is built on a single-layer FR4 substrate and encapsulated with a PDMS biocompatible coating, enabling low-cost and scalable fabrication using standard photolithography. Key parameters such as conductor spacing, trace width, shorting element placement, and ground plane geometry were optimized to achieve compact size and stable impedance. Full-wave simulations predicted resonance at 406 MHz with a return loss of −34.23 dB, radiation efficiency of −29.59 dB, and gain of −27.91 dBi. Measurements in tissue-mimicking phantoms and porcine skin confirmed a return loss of −24.82 dB and gain of −27.94 dBi, closely matching simulations. Specific absorption rate analysis verified compliance with IEEE C95.1–1999 safety limits at 193 mW input. The proposed design integrates material choice, geometric refinement, and planar fabrication, providing a reproducible platform for next-generation implantable systems.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"80 ","pages":"Pages 367-375"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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