AIP Advances最新文献_第6页

Graphene–insulator–metal diodes: Enhanced dielectric strength of the Al2O3 barrier 石墨烯-绝缘体-金属二极管：增强 Al2O3 势垒的介电强度

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0223763

J. Kunc, T. Fridrišek, M. Shestopalov, J. Jo, K. Park

{"title":"Graphene–insulator–metal diodes: Enhanced dielectric strength of the Al2O3 barrier","authors":"J. Kunc, T. Fridrišek, M. Shestopalov, J. Jo, K. Park","doi":"10.1063/5.0223763","DOIUrl":"https://doi.org/10.1063/5.0223763","url":null,"abstract":"We studied the transport properties of graphene–insulator–metal tunneling diodes. Two sets of tunneling diodes with Ti–Cu and Cr–Au top contacts are fabricated. Transport measurements showed state-of-the-art non-linearity and a critical influence of the top metals on the dielectric strength of the tunneling barrier. X-ray photoelectron spectroscopy indicated two methods for enhancing the dielectric strength of the tunneling barrier. These are the optimized seed layers for the growth of high-quality conformal insulators and the selection of appropriate top metal layers with a small diffusion coefficient and electromigration into the Al2O3 barrier. The Cr–Au top contact provides superior characteristics to the Ti–Cu metallization. X-ray photoelectron spectroscopy showed significant diffusion of titanium during the Al2O3 growth and the formation of titanium inclusions after annealing. Chromium diffusion is slower than that of titanium, making chromium contact more suitable for the reliable operation of tunneling diodes. As a result, we demonstrate a 40% improvement in the dielectric strength of the tunneling barrier compared to state-of-the-art metal–insulator–metal diodes.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"61 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185400","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

Unfolding band structure and topological property of 3d transition metal doped monolayer CrTe2: A first-principle calculation 掺杂 3d 过渡金属的单层 CrTe2 的展开带结构和拓扑特性：第一原理计算

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0225476

Pengfei Yan, Guanqi Li, Zhihao Li, Yafei Zhao, Liang He

引用次数: 0

An upconversion device based on high-performance dual-layer white organic electroluminescent devices 基于高性能双层白色有机电致发光器件的上转换装置

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0222205

Weigao Wang, Yiyang Li, Yili Wan, Yu Duan, Hua An, Zhengchun Peng

{"title":"An upconversion device based on high-performance dual-layer white organic electroluminescent devices","authors":"Weigao Wang, Yiyang Li, Yili Wan, Yu Duan, Hua An, Zhengchun Peng","doi":"10.1063/5.0222205","DOIUrl":"https://doi.org/10.1063/5.0222205","url":null,"abstract":"Large-area imaging techniques in the short-wave infrared spectral region remain a pressing need. Organic light-emitting diodes and infrared photodetectors can be combined to form a near-infrared (NIR) to visible upconversion device, which has great potential to replace traditional infrared imaging systems. The integration of a white organic light-emitting diode (WOLED) with infrared photodetectors has become essential to realize full-color displays for its simple preparation process and high compatibility. This work has designed and optimized a WOLED to achieve stable emission with high brightness (19 470 cd m−2) and high external quantum efficiency (EQE = 18.08%) at a wide voltage range, thereby reducing chromaticity drift caused by voltage fluctuations. Moreover, photon-generated holes in the NIR-sensitive photodetector are able to inject into the WOLED for visible light emission. Consequently, we have obtained a high-performance upconversion device with a luminance on-off ratio exceeding 5 × 103 at 850 nm NIR and a high color stability over a wide range of operating voltage. Our efforts have accomplished a high-performance upconversion device from NIR to white visible light, laying the groundwork for a preliminary exploration of full-color displays.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"50 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185409","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

Improved sensitivity for subsurface imaging by contact resonance atomic force microscopy using Fano peaks 利用法诺峰提高接触共振原子力显微镜表面下成像的灵敏度

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0219230

Yuyang Wang, Mingyu Duan, Yuan-Liu Chen

{"title":"Improved sensitivity for subsurface imaging by contact resonance atomic force microscopy using Fano peaks","authors":"Yuyang Wang, Mingyu Duan, Yuan-Liu Chen","doi":"10.1063/5.0219230","DOIUrl":"https://doi.org/10.1063/5.0219230","url":null,"abstract":"Subsurface detection using contact resonance atomic force microscopy (CR-AFM) has been well-documented and proven capable of nondestructively detecting subsurface defects at depths of hundreds of nanometers. In CR-AFM, the frequency of the contact resonance mode is often used as the actuating frequency of the probe. However, as many frequencies are available in the probe’s vibrational spectrum, each with a significant impact on the final measurement result, a focused study on frequency selection is necessary. This paper investigates contact resonance peaks through theoretical modeling and experimental verification. The peaks were categorized into two types based on their symmetry. Comparative studies were conducted on the traditionally used symmetric resonance peaks and the less-studied asymmetric resonance peaks. The results reveal the detection capability for subsurface measurements due to different peak selections, identifying the peak types most suitable for these measurements. This study demonstrates that using Fano peaks in CR-AFM can enhance subsurface imaging resolution and reduce surface damage, making it a valuable technique for detailed nanoscale analysis.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"12 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185411","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

An experimental study of the impact of various infill parameters on the compressive strength of 3D printed PETG/CF 各种填充参数对 3D 打印 PETG/CF 抗压强度影响的实验研究

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0212544

Shashwath Patil, T. Sathish, Jayant Giri, Bassem F. Felemban

{"title":"An experimental study of the impact of various infill parameters on the compressive strength of 3D printed PETG/CF","authors":"Shashwath Patil, T. Sathish, Jayant Giri, Bassem F. Felemban","doi":"10.1063/5.0212544","DOIUrl":"https://doi.org/10.1063/5.0212544","url":null,"abstract":"This study examines the effect of different infill patterns and percentages on the compressive strength attributes of carbon fiber-reinforced PETG samples printed using fused deposition modeling, employing response surface methodology. Carbon fiber-enhanced PETG (polyethylene terephthalate glycol) composites represent a cutting-edge advancement in additive manufacturing, drawing significant interest due to their impressive mechanical attributes. The experimentation involves modifying printing parameters such as the infill pattern (tri-hexagon, cubic, or line) and infill density (40%, 60%, and 80%). These parameter values were obtained through a central composite experimental design utilizing response surface methodology. The compressive strength of the 3D-printed carbon fiber-reinforced PETG specimens is assessed following ASTM D695 standards. Research indicates that increasing the density of the infill results in enhanced compressive strength. Specifically, specimens featuring an 80% infill density with a tri-hexagon pattern demonstrate a notable compressive strength of 39.16 MPa. By employing regression analysis and optimization techniques, the study predicts experimental outcomes accurately. These findings offer valuable insights into refining the manufacturing process of carbon fiber-reinforced PETG components. This advancement holds potential benefits across various engineering fields, particularly in automotive and aerospace industries, where strength and durability are essential.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"35 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185412","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

Opportunities and challenges of bamboo fiber composites in additive manufacturing: A comprehensive review 竹纤维复合材料在增材制造中的机遇与挑战：综述

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0227267

Muthuselvan Balasubramanian, R. Saravanan, T. Sathish, Jayant Giri, Rustem Zairov, S. M. Mozammil Hasnain, Rakhymzhan Turmanov

引用次数: 0

Comprehensive device modeling and performance analysis of (Cs, FA)Pb(I, Br)3 based perovskite–silicon tandem solar cells 基于(Cs, FA)Pb(I, Br)3的过氧化物硅串联太阳能电池的综合器件建模和性能分析

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-06 DOI: 10.1063/5.0225140

Zhenhui Wu, Zhaoyao Pan, Jinpeng Yang

{"title":"Comprehensive device modeling and performance analysis of (Cs, FA)Pb(I, Br)3 based perovskite–silicon tandem solar cells","authors":"Zhenhui Wu, Zhaoyao Pan, Jinpeng Yang","doi":"10.1063/5.0225140","DOIUrl":"https://doi.org/10.1063/5.0225140","url":null,"abstract":"The utilization of perovskite films as the top subcell to form a perovskite–silicon tandem solar cell has emerged as an attractive approach to achieve higher power conversion efficiency (PCE) that could surpass the Shockley–Queisser limit for single silicon junction. Despite these efforts, precisely understanding and predicting the underlying mechanism necessary for obtaining higher PCE remains a challenging task. In particular, the absorption due to back electrode reflection during calculations has often been neglected, resulting in an underestimation when comparing theoretical calculations to experimental conditions. In this study, we conduct a comprehensive investigation of perovskite–silicon tandem solar cells with considering the back electrode reflection to study the detailed influence on film quality of perovskite films, where a detailed analysis of multiple factors such as bulk and interface defects, doping levels, and carrier mobility from (Cs, FA)Pb(I, Br)3 has been conducted to unveil their effects on device performance. Our results revealed that lower bulk/interface defect concentrations and higher carrier mobility are critical factors contributing to the best device performance, where the highest PCE would reach up to 37.40%. Further comparison with experimental results also confirms the importance of employing effective methods to reduce surface/interface trap densities in order to enhance overall performance. These findings offer valuable theoretical insights for the guidance of experimental designs of perovskite–silicon tandem solar cells.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"18 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224437","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

Efficient method for twist-averaged coupled cluster calculation of gap energy: Bulk study of stannic oxide 捻平均耦合簇计算间隙能的高效方法：氧化锡的块体研究

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-05 DOI: 10.1063/5.0212542

Maliheh Shaban Tameh, Wayne L. Gladfelter, Jason D. Goodpaster

{"title":"Efficient method for twist-averaged coupled cluster calculation of gap energy: Bulk study of stannic oxide","authors":"Maliheh Shaban Tameh, Wayne L. Gladfelter, Jason D. Goodpaster","doi":"10.1063/5.0212542","DOIUrl":"https://doi.org/10.1063/5.0212542","url":null,"abstract":"We study the gap energy of the semiconducting oxide SnO2 through ab initio calculations including both density functional theory (DFT) and coupled cluster methods. The effectiveness of twist averaging in reducing finite-size errors is evaluated across different functionals. We report an overestimation of gap energy when applying finite-size scaling to reach the thermodynamic limit in equation-of-motion (EOM) CCSD calculations. To mitigate one-body and many-body errors, we integrate twist averaging with a post-processing correction mechanism that compares finite-size and infinite-size DFT calculations using hybrid functionals. While inspired by the Kwee, Zhang, and Krakauer approach, our method is specifically tailored to hybrid functionals for a more accurate treatment of exchange-correlation effects. Our approach ensures that the many-body interactions are accurately captured in the estimated gap for an infinite system. We introduce unique single twist angles that provide cost-effective and accurate energies compared to to full twist averaging in EOM-CCSD calculations. Applying this approach to SnO2, we calculate a fundamental gap of 3.46 eV, which closely matches the 3.59 eV gap obtained from two-photon spectroscopy experiments, demonstrating the accuracy of this method.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"8 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224286","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

Optimizing process parameters to minimize wear-induced material loss in bronze-based hybrid metal matrix composites using the Taguchi method 利用田口方法优化工艺参数，最大限度地降低铜基混合金属基复合材料的磨损引起的材料损耗

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-05 DOI: 10.1063/5.0203081

Sreenivasa R., Ramesh B. T., Jayant Giri, Mohammad Khalid Al-Sadoon, Arun Kumar Bongale, T. Sathish, Ashok R. Banagar

{"title":"Optimizing process parameters to minimize wear-induced material loss in bronze-based hybrid metal matrix composites using the Taguchi method","authors":"Sreenivasa R., Ramesh B. T., Jayant Giri, Mohammad Khalid Al-Sadoon, Arun Kumar Bongale, T. Sathish, Ashok R. Banagar","doi":"10.1063/5.0203081","DOIUrl":"https://doi.org/10.1063/5.0203081","url":null,"abstract":"Metal matrix composites have captured considerable interest in tribological applications, largely owing to their remarkable characteristics, which include a high strength-to-weight ratio and a low wear rate. This investigation delves into the exploration of hybrid metal matrix composites, where cobalt and chromium play the role of reinforcing agents within a bronze foundation. These composites were manufactured through a powder metallurgy process, utilizing cobalt and chromium metal powders with a particle size of 40 μm. Various weight percentage ratios (2.5%, 5.0%, and 7.5%) were utilized to create these composite specimens. To assess their tribological performance, the composite samples were subjected to a sliding wear test using a pin on disk machine, following the ASTM G99 standards. The wear characteristics of these composites were analyzed using the Taguchi method, considering parameters such as the applied load, speed, reinforcement percentage, and sliding distance. In addition, we conducted an analysis of variance on the collected data. To analyze the wear behavior of these hybrid metal matrix composites based on bronze, we utilized both multiple linear regression analysis and a signal-to-noise ratio assessment. The results indicate that the inclusion of cobalt and chromium metal powders as reinforcement materials enhances the tribological properties of the bronze matrix material.","PeriodicalId":7619,"journal":{"name":"AIP Advances","volume":"4 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142185416","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

Active damping for acoustic levitation in air 空气中声学悬浮的主动阻尼

IF 1.6 4区物理与天体物理

AIP Advances Pub Date : 2024-09-05 DOI: 10.1063/5.0210800

Vincent Bos, Jasper Wesselingh, Gerard J. Verbiest, Peter G. Steeneken

引用次数: 0