Current Applied Physics最新文献_第4页

Crystallinity-dependent surface oxidation in Cu Films revealed by a visualization of surface plasmon

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-24 DOI: 10.1016/j.cap.2024.12.010

M.S. Kim , J.S. Kim , B.N. Chae , J.S. Lee

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Metal tungstates for resistive memory applications: A mini review

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-17 DOI: 10.1016/j.cap.2024.12.007

Amitkumar R. Patil , Tukaram D. Dongale , Keshav Y. Rajpure

引用次数: 0

Physiochemical characterization of ambient PM10 and PM2.5 in an urban environment

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-16 DOI: 10.1016/j.cap.2024.12.006

Naresh Kumar , Firdaus Mohamad Hamzah , Markus Diantoro , Nabilah Akemal Muhd Zailani , Suman

{"title":"Physiochemical characterization of ambient PM10 and PM2.5 in an urban environment","authors":"Naresh Kumar , Firdaus Mohamad Hamzah , Markus Diantoro , Nabilah Akemal Muhd Zailani , Suman","doi":"10.1016/j.cap.2024.12.006","DOIUrl":"10.1016/j.cap.2024.12.006","url":null,"abstract":"<div><div>Air pollution in megacities is increasing due to high population density, vehicles, industry, and waste burning which negatively affects health and climate. Greater Noida is a rapidly urbanizing city in Uttar Pradesh where particulate matter research is crucial but limited. This study analyzed the particulate matter in Greater Noida, India during the winter of 2023. The average values of PM<sub>2.5</sub> and PM<sub>10</sub> were 106.97 μg m<sup>−3</sup> and 457.36 μg m<sup>−3</sup>, respectively. Further to study the physiochemical characteristics of particulate matter various techniques were used, including XRD, FT-IR, and FE-SEM coupled with EDX. The presence of minerals like calcite, dolomite, vaterite, and quartz at all sampling sites was identified by FT-IR and XRD techniques. The presence of magnesium was ascertained using dolomite's characteristic peaks. EDX spectra confirm the presence of iron oxides (magnetite and hematite). Analysis shows quartz, iron, biological particles, carbonates, and carbonaceous particles in the study area. C, O, B, Mg, Si, Ca, Cl, Al, Na, K, Zn, and S are the elements found in the study area. Different types of particles, including carbonaceous, iron-containing, feldspar, quartz, calcium-rich, and chlorine-rich particles, were found. Factors affecting air quality near the sampling site include dust, biological emissions, construction activities, and industrial emissions. Combining these methods provides a comprehensive approach to understanding the complex nature of PM in the environment, contributing to a better understanding of its origin, transformation, and potential impacts on health and the environment.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 57-69"},"PeriodicalIF":2.4,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170304","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

Correlated barrier hopping and ionic conduction mechanism in glycolic acid-doped Alginate-PVA biopolymer electrolytes

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-13 DOI: 10.1016/j.cap.2024.12.005

N.M. Ghazali, A.S. Samsudin

引用次数: 0

Enhancing performance and stability of perovskite solar cells via CsPbBr3 nanocrystal-assisted antisolvent engineering

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-12 DOI: 10.1016/j.cap.2024.12.004

Jaewon Oh , Sung Hun Kim , Seungsun Choi , Muntae Hwang , Hyunbok Lee , Hong Seok Lee , Mee-Yi Ryu

{"title":"Enhancing performance and stability of perovskite solar cells via CsPbBr3 nanocrystal-assisted antisolvent engineering","authors":"Jaewon Oh , Sung Hun Kim , Seungsun Choi , Muntae Hwang , Hyunbok Lee , Hong Seok Lee , Mee-Yi Ryu","doi":"10.1016/j.cap.2024.12.004","DOIUrl":"10.1016/j.cap.2024.12.004","url":null,"abstract":"<div><div>Organic–inorganic halide perovskites show great potential, but their commercialization faces challenges due to instability, requiring controlled synthesis environments. Antisolvent engineering offers a solution by improving the formation of perovskite films under ambient conditions. In this study, CsPbBr<sub>3</sub> nanocrystals (NCs) were added to the antisolvent to enhance the performance and stability of perovskite solar cells (PSCs). By optimizing the NC concentration and the mixing ratio of antisolvents, we systematically examined their impact on film deposition. The inclusion of CsPbBr<sub>3</sub> NCs improved PSC efficiency, with the highest power conversion efficiency of 19.99 % achieved at 0.01 mg/mL NC concentration. Additionally, NC-added films demonstrated better long-term stability, losing only 12.5 % efficiency after 80 days compared to a 47.1 % loss in pristine films. These results highlight the potential of NC-assisted antisolvent engineering for producing stable, high-performance PSCs.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 37-45"},"PeriodicalIF":2.4,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170302","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

Experimental and theoretical methods of practicing current applied physics, Part II

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-11 DOI: 10.1016/j.cap.2024.12.003

Gee Yeong Kim, Geol Moon, Woo Seok Choi

引用次数: 0

A compact triple-band CPW-fed antenna laminated on FR-4 dielectric substrate material for diverse wireless applications

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-10 DOI: 10.1016/j.cap.2024.12.002

Sandeep Kumar Singh , Yamiko Daniel Banda , Manish Kumar , Anupam Kumar Yadav , Har Mohan Singh , M.Z.A. Yahya , S.N.F. Yusuf , Markus Diantoro

{"title":"A compact triple-band CPW-fed antenna laminated on FR-4 dielectric substrate material for diverse wireless applications","authors":"Sandeep Kumar Singh , Yamiko Daniel Banda , Manish Kumar , Anupam Kumar Yadav , Har Mohan Singh , M.Z.A. Yahya , S.N.F. Yusuf , Markus Diantoro","doi":"10.1016/j.cap.2024.12.002","DOIUrl":"10.1016/j.cap.2024.12.002","url":null,"abstract":"<div><div>This paper investigates a compact Spider-wave hexagonal-shaped radiating stub Coplanar Waveguide (CPW)-fed multiband Microstrip Patch Antenna (MPA) for triple-band wireless applications. The proposed antenna dimension (L × W × h) is 30 × 35 × 1.6 mm<sup>3</sup> laminated on FR-4 dielectric substrate material with a dielectric constant (ε<sub>r</sub>) 4.4. The proposed antenna operates for 4th Generation Mobile Networks (4G; 2–8 GHz), 5th Generation Mobile Networks (5G; 3.6–6 GHz, bandwidth 50–400 MHz), and 6th Generation Mobile Networks (6G; Midband, 7.0–20 GHz; bandwidth >160 MHz) at resonating frequencies of 3.27 GHz, 5.89 GHz, and 8.29 GHz, respectively. It shows that the proposed antenna is highly matched to input impedance and considering reflection coefficients (|S<sub>11</sub>|) of −28 dB at 3.27 GHz, −25 dB at 5.89 GHz, and −23 dB at 8.29 GHz, respectively, for triple-band applications. This compact design can be used in modern wireless communication systems requiring operation on multiple bands.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 27-36"},"PeriodicalIF":2.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170301","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

Synthesis and Evaluation of Self–Supporting Graphitic Carbon Nitride/Carbon Nanotube (GCN/CNT) ORR/OER Electrodes in Aqueous and Non–Aqueous Media

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-09 DOI: 10.1016/j.cap.2024.12.001

Maricor Divinagracia-Luzadas , Kentaro Kaneko , Keisuke Hori , Julie Anne Paraggua , Suguru Noda , Joey Ocon

{"title":"Synthesis and Evaluation of Self–Supporting Graphitic Carbon Nitride/Carbon Nanotube (GCN/CNT) ORR/OER Electrodes in Aqueous and Non–Aqueous Media","authors":"Maricor Divinagracia-Luzadas , Kentaro Kaneko , Keisuke Hori , Julie Anne Paraggua , Suguru Noda , Joey Ocon","doi":"10.1016/j.cap.2024.12.001","DOIUrl":"10.1016/j.cap.2024.12.001","url":null,"abstract":"<div><div>To address the sluggish kinetics of oxygen reduction and evolution reactions, it is important to focus on developing active and robust electrode structures. Herein, a GCN/CNT composite was synthesized using a facile stepladder annealing method and evaluated as an electrode for aqueous and non–aqueous systems, wherein this combination provided storage sites for the reactants and products while facilitating electron transfer, as well as active centers for oxygen reactions, making this composite a bifunctional electrode. Different mass ratios of GCN/CNT were explored to determine their effect on the catalytic properties of the electrode. Among them, the electrode with the lowest GCN content (18GCN/CNT) showed the highest activity and stability towards ORR and OER (ΔE = 1.07 V) in alkaline media, presumably due to its considerable surface area, improved electron conductivity, and nitrogen content. When employed as a Li–O<sub>2</sub> battery cathode, GCN/CNT showed lower overpotentials and better cycling stability than CNT due to the presence of GCN active sites. It delivered a discharge specific capacity of 3796 mAh g<sub>GCN/CNT</sub><sup>−1</sup> at a current density of 100 mA g<sub>cathode</sub><sup>−1</sup> (0.1C) and 35 cycles at a limited capacity of 1000 mAh g<sub>GCN/CNT</sub><sup>−1</sup>. Moreover, the reversible formation and decomposition of the Li<sub>2</sub>O<sub>2</sub> product after cycling was confirmed in the SEM images and XRD patterns.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 14-26"},"PeriodicalIF":2.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170300","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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Effect of calcination temperature on the microstructure and energy storage performance of bismuth layer-structured relaxor ferroelectric BaBi2Nb2O9 ceramics

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-12-06 DOI: 10.1016/j.cap.2024.11.017

Seung-Hun Han, Sam Yeon Cho, Sang Don Bu

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Synergistic impact of Al2O3 capping layer and deposition temperature for enhancing the ferroelectricity of undoped-HfO2 thin films Al2O3盖层和沉积温度对未掺杂hfo2薄膜铁电性的协同影响

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-11-28 DOI: 10.1016/j.cap.2024.11.016

Sang Han Ko , Seung-Eon Moon , Sung Min Yoon

{"title":"Synergistic impact of Al2O3 capping layer and deposition temperature for enhancing the ferroelectricity of undoped-HfO2 thin films","authors":"Sang Han Ko , Seung-Eon Moon , Sung Min Yoon","doi":"10.1016/j.cap.2024.11.016","DOIUrl":"10.1016/j.cap.2024.11.016","url":null,"abstract":"<div><div>Synergistic effects of Al<sub>2</sub>O<sub>3</sub> capping layer and deposition temperature, ranging from 220 to 280 °C, on the ferroelectric properties of undoped HfO<sub>2</sub> thin films were investigated. The use of an Al<sub>2</sub>O<sub>3</sub> capping layer during atomic layer deposition (ALD) process was verified to induce a ferroelectric orthorhombic phase in undoped HfO<sub>2</sub> thin films, leading to a net remnant polarization (2P<sub>r</sub>) of >20 μC/cm<sup>2</sup> when deposited <260 °C. The HfO<sub>2</sub> thin film deposited at 240 °C showed a low leakage current density of 5.7 × 10<sup>−6</sup> A/cm<sup>2</sup> at an electric field of 2 MV/cm, accompanied by a high 2P<sub>r</sub> and an endurance of >10<sup>7</sup> cycles. Furthermore, the switching time for ferroelectric polarization reversal was estimated to range from 2.1 to 1.7 μs in the voltage range of 3.5–4.5 V. The results of this work demonstrated the impact of deposition temperature conditions on the ferroelectric properties of the HfO<sub>2</sub> thin films by means of the Al<sub>2</sub>O<sub>3</sub> capping process.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"71 ","pages":"Pages 1-8"},"PeriodicalIF":2.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747740","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