Current Applied Physics最新文献_第7页

Mechanical and electrochemical characterization of CuAlNi alloys 铜铝镍合金的机械和电化学特性分析

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-18 DOI: 10.1016/j.cap.2024.10.008

Jia-Yuan Chen , Hoang-Giang Nguyen , Ming-Hong Lin , Te-Hua Fang

引用次数: 0

Machine learning-enhanced design of lead-free halide perovskite materials using density functional theory 利用密度泛函理论进行无铅卤化物包晶材料的机器学习强化设计

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-17 DOI: 10.1016/j.cap.2024.10.012

Upendra Kumar , Hyeon Woo Kim , Gyanendra Kumar Maurya , Bincy Babu Raj , Sobhit Singh , Ajay Kumar Kushwaha , Sung Beom Cho , Hyunseok Ko

{"title":"Machine learning-enhanced design of lead-free halide perovskite materials using density functional theory","authors":"Upendra Kumar , Hyeon Woo Kim , Gyanendra Kumar Maurya , Bincy Babu Raj , Sobhit Singh , Ajay Kumar Kushwaha , Sung Beom Cho , Hyunseok Ko","doi":"10.1016/j.cap.2024.10.012","DOIUrl":"10.1016/j.cap.2024.10.012","url":null,"abstract":"<div><div>The investigation of emerging non-toxic perovskite materials has been undertaken to advance the fabrication of environmentally sustainable lead-free perovskite solar cells. This study introduces a machine learning methodology aimed at predicting innovative halide perovskite materials that hold promise for use in photovoltaic applications. The seven newly predicted materials are as follows: CsMnCl<sub>4</sub>, Rb<sub>3</sub>Mn<sub>2</sub>Cl<sub>9</sub>, Rb<sub>4</sub>MnCl<sub>6</sub>, Rb<sub>3</sub>MnCl<sub>5</sub>, RbMn<sub>2</sub>Cl<sub>7</sub>, RbMn<sub>4</sub>Cl<sub>9</sub>, and CsIn<sub>2</sub>Cl<sub>7</sub>. The predicted compounds are first screened using a machine learning approach, and their validity is subsequently verified through density functional theory calculations. CsMnCl<sub>4</sub> is notable among them, displaying a bandgap of 1.37 eV, falling within the Shockley-Queisser limit, making it suitable for photovoltaic applications. Through the integration of machine learning and density functional theory, this study presents a methodology that is more effective and thorough for the discovery and design of materials.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"69 ","pages":"Pages 1-7"},"PeriodicalIF":2.4,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537354","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

Development of an efficient UV absorber and reusable SERS chip by buried Ag ion implantation in Si substrate 通过在硅基底中埋入银离子，开发高效紫外线吸收器和可重复使用的 SERS 芯片

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-16 DOI: 10.1016/j.cap.2024.10.013

Sudip Bhowmick , Biswarup Satpati , Debasree Chowdhury , Prasanta Karmakar

引用次数: 0

Novel green synthesis approach of Fe3O4-MSN/Ag nanocomposite using moringa oleifera extract for magnetic hyperthermia applications 利用油杉提取物合成磁性热疗用 Fe3O4-MSN/Ag 纳米复合材料的新型绿色合成方法

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-16 DOI: 10.1016/j.cap.2024.10.010

Mahardika Yoga Darmawan , Marhan Ebit Saputra , Leni Rumiyanti , Nurul Imani Istiqomah , Nanang Adrianto , Rivaldo Marsel Tumbelaka , Harlina Ardiyanti , Nur Aji Wibowo , Nining Sumawati Asri , Julia Angel , Hasniah Aliah , Ari Dwi Nugraheni , Edi Suharyadi

{"title":"Novel green synthesis approach of Fe3O4-MSN/Ag nanocomposite using moringa oleifera extract for magnetic hyperthermia applications","authors":"Mahardika Yoga Darmawan , Marhan Ebit Saputra , Leni Rumiyanti , Nurul Imani Istiqomah , Nanang Adrianto , Rivaldo Marsel Tumbelaka , Harlina Ardiyanti , Nur Aji Wibowo , Nining Sumawati Asri , Julia Angel , Hasniah Aliah , Ari Dwi Nugraheni , Edi Suharyadi","doi":"10.1016/j.cap.2024.10.010","DOIUrl":"10.1016/j.cap.2024.10.010","url":null,"abstract":"<div><div>Cancer is a major global health problem, and finding effective treatments is a challenging task. Magnetic hyperthermia is one of the promising alternative cancer treatments because the heat generated is localized and safe for healthy cells. Magnetite (Fe₃O₄) nanoparticles are commonly used as heat generating materials. This study focuses on the development of Fe₃O₄ nanoparticles through green synthesis using <em>Moringa oleifera</em> extract. Fe₃O₄ is coated with silver nanoparticles using mesoporous silica. Silver (Ag) nanoparticles are used because of their biocompatibility while mesoporous silica nanoparticles (MSN) because of their ability to carry other agents and their relatively low toxicity. X-ray diffraction revealed that the addition of Ag reduced the average crystallite size of the Fe₃O₄-MSN/Ag composite to around 15.7–16.1 nm, with an average particle size of 21.3 nm. The presence of magnetite and silver was confirmed by electron microscopy techniques. Magnetic tests showed that the composite had a saturation magnetization of about 10 emu/g. Heat generation tests showed that the composite could increase the temperature by more than 5 °C, exceeding the minimum temperature required for effective hyperthermia treatment, with a specific absorption rate (SAR) of 1.59 W/g at a field strength of 150 Oe and a frequency of 20 kHz. The effective SAR value obtained is almost 5 times greater compared to commercial Fe₃O₄. In vitro cytotoxicity tests utilize NIH3T3 fibroblasts showed that Fe₃O₄-MSN/Ag was non-toxic. These results indicate that this magnetic nanocomposite has significantly improved structural, optical, magnetic, and thermal properties, making it a promising candidate for cancer hyperthermia treatment.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"68 ","pages":"Pages 242-256"},"PeriodicalIF":2.4,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528856","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

Hierarchical Bi2S3 nanothorn on ZnO core-branch photoelectrode: A promising heterostructure for enhanced photoelectrochemical water splitting ZnO 核支光电电极上的分层 Bi2S3 纳米刺：用于增强光电化学水分离的前景广阔的异质结构

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-15 DOI: 10.1016/j.cap.2024.10.009

S. Sadhasivam, T. Sadhasivam, K. Selvakumar, T.H. Oh

{"title":"Hierarchical Bi2S3 nanothorn on ZnO core-branch photoelectrode: A promising heterostructure for enhanced photoelectrochemical water splitting","authors":"S. Sadhasivam, T. Sadhasivam, K. Selvakumar, T.H. Oh","doi":"10.1016/j.cap.2024.10.009","DOIUrl":"10.1016/j.cap.2024.10.009","url":null,"abstract":"<div><div>The zinc oxide semiconductor associated with defects and their recombination effect restricts the development of photoelectrode for hydrogen evolution. The combination of semiconductor hetero-junction and hierarchical interface of ZnO/Bi<sub>2</sub>S<sub>3</sub> photoelectrode fabricated. In this study, heterostructure ZnO/Bi<sub>2</sub>S<sub>3</sub> were studied as a photoanode with their impact of oxygen vacancy in ZnO nano rods. The trace of the Bi<sub>2</sub>S<sub>3</sub> on the ZnO was studied and compared with pristine and oxygen annealed ZnO nano rods. The photon-luminescence studies reveal that shallow donor and acceptor defect in ZnO and restricted by Bi<sub>2</sub>S<sub>3</sub> heterostructure. The less defect contemplations in the photoanodes accelerates up electron and hole migration leading to significant built-in potential and photocurrent generation. The appropriate method has been followed to architype less interfacial defect in ZnO(300)/Bi<sub>2</sub>S<sub>3</sub> photoanode and boosted the photo-redox reactions for efficient hydrogen evolution. The photoanode exhibits substantial properties of photocurrent density 0.33 mA/cm<sup>2</sup>, charge transfer resistance of 700 Ω cm<sup>2</sup> and higher inbuilt potential of −0.88V vs Ag/AgCl with 0.17 % applied bias photon to electron conversion efficiency and 0.11 % solar to hydrogen conversion efficiency.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"68 ","pages":"Pages 257-266"},"PeriodicalIF":2.4,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528857","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

Poly(aniline)-multiwall carbon nanotube (PANI@MWCNT) composite as high-cost Pt free counter electrode for dye-sensitized solar cells 聚（苯胺）-多壁碳纳米管（PANI@MWCNT）复合材料作为染料敏化太阳能电池的高成本无铂对电极

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-09 DOI: 10.1016/j.cap.2024.10.006

Alagumalai Manimekalai , Kuppu Sakthi Velu , Sonaimuthu Mohandoss , Rizwan Wahab , Naushad Ahmad , Jeong Hyun Seo , Seho Sun , Yong Rok Lee

{"title":"Poly(aniline)-multiwall carbon nanotube (PANI@MWCNT) composite as high-cost Pt free counter electrode for dye-sensitized solar cells","authors":"Alagumalai Manimekalai , Kuppu Sakthi Velu , Sonaimuthu Mohandoss , Rizwan Wahab , Naushad Ahmad , Jeong Hyun Seo , Seho Sun , Yong Rok Lee","doi":"10.1016/j.cap.2024.10.006","DOIUrl":"10.1016/j.cap.2024.10.006","url":null,"abstract":"<div><div>In this study, we synthesized a poly (aniline)-multiwall carbon nanotube (PANI@MWCNT) composite for use as a counter electrode (CE) in dye-sensitized solar cells. Moreover, FE-SEM and HR-TEM images of PANI@MWCNT revealed carbon nanotube/ropes embedded in the polymer matrix. An X-ray diffraction pattern confirmed the amorphous nature of the composite. Further, Electrochemical impedance spectroscopy studies indicated a charge transport resistance value (R<sub>ct</sub>) of 4.36 KΩ for PANI@MWCNT. CV studies demonstrated improved electrocatalytic performance and faster redox behavior in the PANI@MWCNT composite. BET analysis measured the pore size of the as-prepared composite to be 15–50 nm. Subsequently, the as-synthesized PANI, PANT@MWNCT, pristine MWCNT, and platinum were evaluated as CEs in DSSCs using a polyethylene oxide polymer-based liquid electrolyte and a TiO<sub>2</sub> nanocrystalline photoanode. Among these CEs, the PANI@MWCNT CE exhibited an efficiency of 8.07 %, and the stability test indicated that the as-prepared composite CE retained 7.81 % efficiency after 15 days.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"68 ","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427495","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

High magnetic susceptibility-based vanadate tellurite glasses for magneto-optical device applications 用于磁光器件应用的基于高磁感的钒碲玻璃

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-06 DOI: 10.1016/j.cap.2024.10.005

Yamagouni Paramesh Goud , Nirlakalla Ravi

{"title":"High magnetic susceptibility-based vanadate tellurite glasses for magneto-optical device applications","authors":"Yamagouni Paramesh Goud , Nirlakalla Ravi","doi":"10.1016/j.cap.2024.10.005","DOIUrl":"10.1016/j.cap.2024.10.005","url":null,"abstract":"<div><div>Tellurite glasses modified with V<sub>2</sub>O<sub>5</sub>, Fe<sub>2</sub>O<sub>3</sub>, and Na<sub>2</sub>O (TVFN), along with Sm<sup>3+</sup>-doped Gd<sub>2</sub>O<sub>3</sub> and Sb<sub>2</sub>O<sub>3</sub> based tellurite (TVGSNSm) glasses evaluated for various properties. The thermal stability of these glasses, with a critical value of 105 °C advantageous to luminescence. Fourier transform infrared and micro-Raman bands were identified at 669, 745, 859, 943, and 1003 cm<sup>−1</sup> in the deconvolution. Electron spin resonance revealed a signal at a magnetic field of 340.75 mT (g = 1.77). The magnetic hysteresis of TVFN glasses from a vibrating sample magnetometer which possess coercivity 62 mT and remanence 1.5х10<sup>−2</sup> Am<sup>2</sup>/kg with a saturation magnetization 0.1975 A m<sup>2</sup>/kg and magnetic susceptibility as high as 0.1328. The magnetic nature confirmed by superconducting quantum interference device. Photoluminescence of Sm<sup>3+</sup>-doped TVGSNSm glasses excited by 408 nm showed 646 nm (red-orange) dominated emission band over the 603 nm band. These findings underscore the potential of TVFN glasses for applications in magneto-optical devices.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"68 ","pages":"Pages 206-213"},"PeriodicalIF":2.4,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427493","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

Realization of diode structures on paper: An example of papertronics 在纸上实现二极管结构：纸上电子学的一个实例

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-05 DOI: 10.1016/j.cap.2024.10.001

Rajkumar Dey , Shamima Hussain , A.K. Pal

{"title":"Realization of diode structures on paper: An example of papertronics","authors":"Rajkumar Dey , Shamima Hussain , A.K. Pal","doi":"10.1016/j.cap.2024.10.001","DOIUrl":"10.1016/j.cap.2024.10.001","url":null,"abstract":"<div><div>A possibility of fabricating paper/Ag/CdTe/Au Schottky and paper/Ag/CdTe/CdS/In p-n junction diode structures has been demonstrated here. Ag (∼5 μm), CdTe (∼50 μm), CdS (∼45 μm), Au and In dots (∼5 μm) were deposited on the cellulose using appropriate stainless-steel masks to obtain the requisite diode structures. The band gaps of the CdTe and CdS layers were ∼1.55 eV and ∼1.45 eV, respectively. Current-voltage (I-V) characteristics of the paper/Ag/CdTe/Au Schottky and paper/Ag/CdTe/CdS/In p-n junction diodes were recorded at room temperature. Ideality factor (<em>n</em>), series resistance (<em>R</em><sub><em>S</em></sub>) and barrier height (φ<sub>b</sub>) of the respective diodes were computed. The barrier height (φ<sub>b</sub>) and ideality factor (<em>n</em>) computed from current-voltage characteristics were found to be 0.74 eV and 1.8, respectively at room temperature. Series resistance and φ<sub>b</sub> computed by using Cheung-Cheung method were ∼177 Ω and ∼0.45 eV, respectively. They are comparable to the resistance derived from a modified Norde method. The fabricated diodes were reproducible and stable for a few months. These diode structures were tested in an open environment at room temperature and showed no noticeable ageing effect.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"68 ","pages":"Pages 214-223"},"PeriodicalIF":2.4,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142427494","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

Accurate and efficient electronic structure calculations of semiconductor heterostructures using GGA-1/2 formalism 利用 GGA-1/2 形式对半导体异质结构进行精确高效的电子结构计算

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-05 DOI: 10.1016/j.cap.2024.10.003

Seungchul Kim

引用次数: 0

First-principles study on lanthanide dopants in BaTiO3 关于 BaTiO3 中镧系元素掺杂物的第一性原理研究

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2024-10-05 DOI: 10.1016/j.cap.2024.10.002

Hyungwoo Lee , Minae Ouk , Inseo Kim , Biyi Kim , Seok Bae , Sungwon David Roh , Isao Tanaka , Minseok Choi

引用次数: 0