Current Applied Physics最新文献_第7页

Photoluminescent characteristics of novel CaGdAl3O7: Sm3+ nanophosphors for WLEDs wled用新型CaGdAl3O7: Sm3+纳米荧光粉的光致发光特性

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-06-02 DOI: 10.1016/j.cap.2025.06.002

Mansi Malik, Dinesh Kumar

{"title":"Photoluminescent characteristics of novel CaGdAl3O7: Sm3+ nanophosphors for WLEDs","authors":"Mansi Malik, Dinesh Kumar","doi":"10.1016/j.cap.2025.06.002","DOIUrl":"10.1016/j.cap.2025.06.002","url":null,"abstract":"<div><div>This report presents an inclusive examination into synthesis, structural and optical properties of Sm3+ activated CaGdAl3O7 nanophosphors, aimed to develop tuneable luminous materials for applications i.e. white-light-emitting diode (WLED). Sm3+ activated CaGdAl3O7 nanophosphors have been synthesised via combustion method. Phase purity of synthesised nanophosphors was affirmed via PXRD (Powder X-ray diffraction analysis). TEM (Transmission Electron Microscopy) and SEM (Scanning Electron Microscopy) study was accomplished to analyse size and surface morphology. EDAX (Energy dispersive X-ray) analysis approves the existence of different element. The PL (Photoluminescence) emission spectra of all samples were recorded upon excitation at 402 nm suggesting orange red emission around 598 nm pertaining to transition 4G5/2 → 6H7/2 of Sm3+ ions. The optimal Sm3+ concentration was recognized at 7 mol%. Optical bandgap of 3.99 eV was evaluated for CaGd0.93Sm0.07Al3O7 sample. CIE coordinates were (0.634, 0.365) and CCT value (2096 K) of CaGd0.93Sm0.07Al3O7 demonstrates emission of light in warmer region.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"77 ","pages":"Pages 76-84"},"PeriodicalIF":2.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144242481","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

Epitaxial Sr-doped nickelate perovskite thin films and Ruddlesden-Popper phases grown by magnetron sputtering 磁控溅射生长外延掺锶镍钙钛矿薄膜和Ruddlesden-Popper相

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-31 DOI: 10.1016/j.cap.2025.05.012

Changhwan Kim , Min Young Jung , Yeong Gwang Khim , Kyeong Jun Lee , Young Jun Chang , Seo Hyoung Chang

{"title":"Epitaxial Sr-doped nickelate perovskite thin films and Ruddlesden-Popper phases grown by magnetron sputtering","authors":"Changhwan Kim , Min Young Jung , Yeong Gwang Khim , Kyeong Jun Lee , Young Jun Chang , Seo Hyoung Chang","doi":"10.1016/j.cap.2025.05.012","DOIUrl":"10.1016/j.cap.2025.05.012","url":null,"abstract":"<div><div>Sr-doped nickelate, Nd1-xSrxNiO3 (NSNO), perovskite thin films and Ruddlesden-Popper (RP) phases are actively investigated because of their physical properties, such as the metal-insulator transition and superconductivity. However, achieving epitaxial growth of NSNO perovskite and RP phase films in a sputtering system is challenging compared to pulsed laser deposition and molecular beam epitaxy, due to the difficulty in stabilizing nickel oxidation states and minimizing structural defects. Here, we used an off-axis radio frequency (RF) magnetron sputtering to fabricate epitaxial NSNO perovskite and RP phase thin films on SrTiO3 (001) substrates, systematically controlling the growth temperatures. We investigated the thermal stability of the perovskite phase and the structural and electronic characteristics of the RP phase films. These findings provide valuable insights into the synthesis of nickelate RP phase films using RF magnetron sputtering, paving the way for scalable thin films fabrication technologies.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"77 ","pages":"Pages 57-62"},"PeriodicalIF":2.4,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196327","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

MoS2 sensitized tapered fiber optic evanescent wave sensor for refractive index based glucose sensing application MoS2增感锥形光纤倏逝波传感器在折射率葡萄糖传感中的应用

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-30 DOI: 10.1016/j.cap.2025.05.015

S. Praveena , G. Melwin , P. Ramesh Babu , K. Senthilnathan

{"title":"MoS2 sensitized tapered fiber optic evanescent wave sensor for refractive index based glucose sensing application","authors":"S. Praveena , G. Melwin , P. Ramesh Babu , K. Senthilnathan","doi":"10.1016/j.cap.2025.05.015","DOIUrl":"10.1016/j.cap.2025.05.015","url":null,"abstract":"<div><div>In this paper, a two-dimensional (2D) molybdenum disulfide (MoS2) coated tapered multimode optical fiber sensor is proposed and its characteristics of refractive index sensing are investigated for the application of glucose monitoring. An highly efficient chemical etching approach has been carried out for tapering the multimode optical fiber. The tapered region is coated with MoS2 nanosheets and they are synthesized by using a cost-effective liquid phase exfoliation [LPE] method. The ideal solvent for exfoliation has been chosen by comparing the deposition using isopropyl alcohol (IPA) and dimethyl formamide (DMF) solvents. It is found that DMF is an ideal solvent for the 2D MoS2 nanosheet synthesis as well as for the deposition of the nanosheets over the optical fiber substrate. The optical deposition method is chosen for integrating the synthesized 2D MoS2 with the tapered optical fiber. The sensitivity is 25, 297, and 525 %/RIU for the uniform multimode fiber, tapered multimode fiber, and MoS2 coated tapered multimode optical fiber sensor, respectively. The MoS2-coated tapered fiber exhibits the highest sensitivity of 1.7 times and 21 times more than that of the tapered and uniform optical fiber sensor probes. Along with the high sensitivity, the MoS2-coated tapered optical fiber sensor probe also possesses high linearity for the change in the RI in the range of 1.33–1.41. It is found this sensor can be operated at any wavelength range from 400 to 1000 nm. Further, we believe that the proposed sensor probe using the intensity interrogation method would turn out to be a potential candidate for health monitoring as it exhibits high sensitivity, linearity, repeatability, and longevity.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"77 ","pages":"Pages 46-56"},"PeriodicalIF":2.4,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144196326","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 of Ag and Pt-loaded g-C3N4 nanocomposite catalysts for improved Hydrogen evolution reaction Ag和pt负载g-C3N4纳米复合催化剂的合成及其对析氢反应的影响

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-28 DOI: 10.1016/j.cap.2025.05.013

Aditya Sharma , Harsha Devnani , Jitendra Pal Singh , Mayora Varshney , Hyun Joon Shin

{"title":"Synthesis of Ag and Pt-loaded g-C3N4 nanocomposite catalysts for improved Hydrogen evolution reaction","authors":"Aditya Sharma , Harsha Devnani , Jitendra Pal Singh , Mayora Varshney , Hyun Joon Shin","doi":"10.1016/j.cap.2025.05.013","DOIUrl":"10.1016/j.cap.2025.05.013","url":null,"abstract":"<div><div>This study reports the synthesis of g-C3N4, g-C3N4@Ag, and g-C3N4@Pt nanocomposites, along with their investigation into the hydrogen evolution reaction (HER). X-ray diffraction results confirmed the formation of pure g-C3N4, g-C3N4@Ag, and g-C3N4@Pt crystalline phases. The estimated crystallite sizes of pure g-C3N4, Pt nanoparticles, and Ag nanoparticles are 3.8 nm, 6.4 nm, and 16.4 nm, respectively. Transmission electron microscopy results reveal the 2D sheet morphology of pure g-C3N4 and the granular morphology of Ag- and Pt-loaded g-C3N4 samples. The electrochemical investigation reveals the superior HER performance of g-C3N4@Pt composite, surpassing the pristine g-C3N4 alone and g-C3N4@Ag. The g-C3N4@Pt exhibits a lower overpotential (100 mV at the current density of 10 mA cm−2), smaller Tafel slope (77 mV⋅dec−1), and long-term stability tests, which emphasize the practical applicability of these composites under HER conditions.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"77 ","pages":"Pages 39-45"},"PeriodicalIF":2.4,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185505","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

Magnetocaloric effect of LaFe13−xSix(x = 1.3, 1.4, 1.5) composites – A comparative study LaFe13−xSix（x = 1.3, 1.4, 1.5）复合材料的磁热效应比较研究

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-26 DOI: 10.1016/j.cap.2025.05.009

Qianhui Mao , Hengchang Xu , Xianxiang Wang , Yuan Wang , Haidong Li , Lisha Xue , Yang Liu , Jinqin Ye , Jun Ding , Xiaofan Xu , Jinhu Yang

引用次数: 0

Mechanical properties and deformation characteristic of few-layer gold nanolayers 少层金纳米层的力学性能及变形特性

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-26 DOI: 10.1016/j.cap.2025.05.011

Thi-Xuyen Bui , Yu-Sheng Lu , Te-Hua Fang

引用次数: 0

Research on dynamic transport and intelligent distribution of dielectric fluids driven by non-uniform electric fields 非均匀电场驱动下介质流体的动态输运与智能分布研究

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-23 DOI: 10.1016/j.cap.2025.05.010

Qiang Tang , Dengqin Tan , Manfei Liu , Ziyi Wang , Long Li , Bozhou Zhang , Junheng Pan

引用次数: 0

Evaluating physio-chemical and optoelectronic properties of CuInSn(S,Se)4 thin films and its photoelectrochemical cell application CuInSn(S,Se)4薄膜的理化和光电性能及其在光电化学电池中的应用

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-23 DOI: 10.1016/j.cap.2025.04.004

Monika P. Joshi , Popatrao N. Bhosale , Sawanta S. Mali , Chang Kook Hong

{"title":"Evaluating physio-chemical and optoelectronic properties of CuInSn(S,Se)4 thin films and its photoelectrochemical cell application","authors":"Monika P. Joshi , Popatrao N. Bhosale , Sawanta S. Mali , Chang Kook Hong","doi":"10.1016/j.cap.2025.04.004","DOIUrl":"10.1016/j.cap.2025.04.004","url":null,"abstract":"<div><div>In this work, CuInSn(S,Se)4 (CITSSe) thin films were synthesized using a self-organized, facile arrested precipitation technique at room temperature. The variation in physio-chemical and optoelectronic properties of the thin films was systematically studied by probing the In3+ ion concentration. The synthesized CITSSe thin films exhibited significant improvements in optostructural and optoelectronic properties. Optical absorption studies confirmed a direct allowed transition with a band gap energy ranging from 1.40 to 1.54 eV. X-ray diffraction analysis verified the formation of a cubic crystal structure, while a peak shift from (220) to (511) with increasing In3+ ion concentration indicated successful incorporation of In3+ ions into the CITSSe matrix. A notable modification in surface morphology was observed, transitioning from nanocubes to nanocorals from sample I0 to I4. The elemental composition of the CITSSe thin films was confirmed through energy-dispersive X-ray spectroscopy. Furthermore, the nanocrystalline nature of the pentanary CITSSe thin films was validated using high-resolution transmission electron microscopy and selected area electron diffraction patterns. Photoelectrochemical and impedance characteristics were analyzed using a two-electrode cell configuration, where the highest photoelectrochemical efficiency of 0.61 % was achieved for the bare CITSSe thin film, exhibiting low charge transfer resistance.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"77 ","pages":"Pages 63-75"},"PeriodicalIF":2.4,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205755","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

Chemical wrapping for selective crystal formation using trapping light induction 利用诱捕光感应选择性晶体形成的化学包裹

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-21 DOI: 10.1016/j.cap.2025.05.008

Md Jahidul Islam, Md Hafizul Islam

引用次数: 0

Systematic analysis of the optical properties of ZnGa2Se4 single crystal ZnGa2Se4单晶光学性质的系统分析

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-05-20 DOI: 10.1016/j.cap.2025.05.007

S.G. Asadullayeva , Z.А. Jahangirli , T.G. Naghiyev , A.S. Abiyev

引用次数: 0