Current Applied Physics最新文献_第2页

Synthesis of Cu2O/ZnO fiber heterojunction networks for self-powered visible-light photodetectors with rapid response

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-03-04 DOI: 10.1016/j.cap.2025.03.002

Yiran Wang , Senzhuo Xing , Nan Zhang

{"title":"Synthesis of Cu2O/ZnO fiber heterojunction networks for self-powered visible-light photodetectors with rapid response","authors":"Yiran Wang , Senzhuo Xing , Nan Zhang","doi":"10.1016/j.cap.2025.03.002","DOIUrl":"10.1016/j.cap.2025.03.002","url":null,"abstract":"<div><div>The network-based self-powered photodetector features a large interfacial area, enhancing light absorption and charge carrier generation, along with its mechanical robustness, enabling integration into various applications. In this study, we propose a novel self-powered photodetector based on an AZO/ZnO/Cu<sub>2</sub>O/Ag network architecture, fabricated using electrodeposition and atomic layer deposition techniques. The fabricated photodetector exhibits a detection wavelength range extending from 390 nm to 780 nm at zero bias, covering the visible spectrum. With a maximum responsivity of 1.6 mA/W and a response time of 5 μs, the device showcases excellent sensitivity and rapid detection capabilities. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and optoelectronic performance testing were employed to analyze the operating mechanism of the photodetector. It was found that the spatial charge region formed at the interface between Cu<sub>2</sub>O and ZnO layers plays a crucial role in enabling the self-powered operation of the photodetector. Our work provides a new strategy for the development of high-performance network photodetectors.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"73 ","pages":"Pages 77-83"},"PeriodicalIF":2.4,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601634","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

Exploring bismuth ferrite: Structural changes and future applications

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-23 DOI: 10.1016/j.cap.2025.02.007

Swarupamayee Nayak , Pratiksha Agnihotri , Jagadis Prasad Nayak , Charul Joshi , Radheshyam Rai

{"title":"Exploring bismuth ferrite: Structural changes and future applications","authors":"Swarupamayee Nayak , Pratiksha Agnihotri , Jagadis Prasad Nayak , Charul Joshi , Radheshyam Rai","doi":"10.1016/j.cap.2025.02.007","DOIUrl":"10.1016/j.cap.2025.02.007","url":null,"abstract":"<div><div>The review article provides a comprehensive quantitative analysis of bismuth ferrite (BiFeO<sub>3</sub>), focusing on its structural, electrical, and magnetic properties, as well as an extensive survey of the existing literature. Bismuth ferrite is a multifunctional material with significant potential for a range of technological applications, particularly in the fields of spintronics, energy harvesting, and memory devices. The review systematically examines various synthesis methods—including chemical vapor deposition, solid-state processes, sol-gel, and hydrothermal techniques—and their effects on the morphology, crystal structure, and overall properties of BiFeO<sub>3</sub>. The study highlights how specific fabrication techniques influence the material's ferroelectric and magnetic characteristics, exploring their implications for performance in diverse applications. By synthesizing findings from recent studies, this review aims to provide a quantitative understanding of how modifications to the material's structure impact its functionality, offering valuable insights for future advancements in the use of BiFeO<sub>3</sub> in advanced technologies.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"73 ","pages":"Pages 49-76"},"PeriodicalIF":2.4,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580435","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

Tunable plasmon-induced transparency based on graphene metasurface structure for mid-infrared sensing applications

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-22 DOI: 10.1016/j.cap.2025.02.009

Tae-Han Kim, Sang Woo Kim, Bo Wha Lee

引用次数: 0

Enhanced Photoelectrochemical performance by rapid electron transfer in reduced graphene oxide/CaWO4 composite photoanode

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-18 DOI: 10.1016/j.cap.2025.02.006

H.N.M. Sarangika , E.G.O.D. Egodawaththa , H.M.B.I. Gunathilaka , V.P.S. Perera , S. Ghosh , C. Bhattacharya

{"title":"Enhanced Photoelectrochemical performance by rapid electron transfer in reduced graphene oxide/CaWO4 composite photoanode","authors":"H.N.M. Sarangika , E.G.O.D. Egodawaththa , H.M.B.I. Gunathilaka , V.P.S. Perera , S. Ghosh , C. Bhattacharya","doi":"10.1016/j.cap.2025.02.006","DOIUrl":"10.1016/j.cap.2025.02.006","url":null,"abstract":"<div><div>Scheelite oxides and their derivatives are renowned for their exceptional stability, high photocatalytic efficiency, and versatile structural design, positioning them as a promising category of semiconductor photocatalysts. In this study, Scheelite calcium tungstate (CaWO<sub>4</sub>) films were fabricated on fluorine-doped tin oxide (FTO) substrates using the chemical bath deposition (CBD), followed by calcination. Graphene oxide (GO) was independently synthesized via the Hummers' method and subsequently deposited onto the CaWO<sub>4</sub> films through electrophoretic deposition (EPD) to form reduced graphene oxide/CaWO<sub>4</sub> (rGO/CaWO<sub>4</sub>) composites. The incorporation of rGO was found to play a crucial role in enhancing electron transport within the rGO/CaWO<sub>4</sub> films. In photoelectrochemical (PEC) water splitting, the rGO/CaWO<sub>4</sub> demonstrated a remarkable photocurrent of 13 μA cm<sup>−2</sup> at 1 V, far exceeding the 0.4 μA cm<sup>−2</sup> achieved by pristine CaWO<sub>4</sub> under identical conditions. This 32.5-fold enhancement in photocurrent is attributed to the rapid electron transfer facilitated by the rGO in the composite structure.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"73 ","pages":"Pages 22-29"},"PeriodicalIF":2.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465234","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

Excitation wavelength dependent multiple biomolecule SERS responses from Bi/ZnO thin films towards ultrasensitive Hemoglobin and L-tyrosine detections

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-17 DOI: 10.1016/j.cap.2025.02.008

Risa Marium Philip, D. Bharathi Mohan

引用次数: 0

Long-term polarization stabilization of a polarization maintaining fiber via dynamic temperature control

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-11 DOI: 10.1016/j.cap.2025.02.005

Sanghyun Park , Jaeuk Baek , Min-Hwan Lee , Sanglok Lee , Geol Moon

引用次数: 0

Fabrication and characterization of heterostructure WO3/BiVO4/TiO2 photocatalyst for efficient performance of photoelectrochemical water splitting

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-11 DOI: 10.1016/j.cap.2025.02.004

Aye Myint Myat Kyaw , Gasidit Panomsuwan , Ratiporn Munprom , Oi Lun Li

{"title":"Fabrication and characterization of heterostructure WO3/BiVO4/TiO2 photocatalyst for efficient performance of photoelectrochemical water splitting","authors":"Aye Myint Myat Kyaw , Gasidit Panomsuwan , Ratiporn Munprom , Oi Lun Li","doi":"10.1016/j.cap.2025.02.004","DOIUrl":"10.1016/j.cap.2025.02.004","url":null,"abstract":"<div><div>Hydrogen evolution through photoelectrochemical (PEC) water splitting using semiconductor photocatalysts and solar energy is a highly promising method for sustainable energy production. Among the various photocatalyst combinations, the heterostructure of tungsten trioxide (WO<sub>3</sub>) and bismuth vanadate (BiVO<sub>4</sub>) has garnered attention for PEC applications due to its wide availability, cost-effectiveness, and suitable bandgap energy. The formation of a heterojunction between WO<sub>3</sub> and BiVO<sub>4</sub> improves charge separation and transfer, enhancing the overall photocatalytic performance. However, their performance is hindered by poor stability in aqueous solutions. To address this, a titanium dioxide (TiO<sub>2</sub>) top layer was added to enhance the photoanode's stability by preventing direct contact with the electrolyte. A triple-layered WO<sub>3</sub>/BiVO<sub>4</sub>/TiO<sub>2</sub> heterostructure was fabricated via hydrothermal and spin-coating methods on an FTO substrate. The crystal structure, morphology, optical properties, and PEC performance of the photoanodes were systematically analyzed at each fabrication step. The WO<sub>3</sub>/BiVO<sub>4</sub>/TiO<sub>2</sub> heterostructure demonstrated excellent photo-switching performance, and stability tests confirmed that the TiO<sub>2</sub> layer effectively protected the underlying layers from photo corrosion, improving long-term efficiency.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"72 ","pages":"Pages 87-92"},"PeriodicalIF":2.4,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445150","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

Effect of heat-affected zone on the nanosecond pulsed laser scanning ablation of Ag nanoparticle layer

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-06 DOI: 10.1016/j.cap.2025.02.003

Hee-Lak Lee , Arif Hussain , Yoon-Jae Moon , Jun Young Hwang , Seung Jae Moon

{"title":"Effect of heat-affected zone on the nanosecond pulsed laser scanning ablation of Ag nanoparticle layer","authors":"Hee-Lak Lee , Arif Hussain , Yoon-Jae Moon , Jun Young Hwang , Seung Jae Moon","doi":"10.1016/j.cap.2025.02.003","DOIUrl":"10.1016/j.cap.2025.02.003","url":null,"abstract":"<div><div>Pulsed laser ablation can be used in printed electronics to remove silver (Ag) nanoparticle (NP) inks from undesired locations. Removing Ag NP involves a scanning ablation process, in which laser beams are irradiated on spots irradiated by a previous laser beam. In this study, that the heat-affected zone (HAZ), which is the peripheral area of the ablation crater where NPs are not ablated but are affected by heat, greatly influences the ablation aspects. Ablation failure was observed in short laser beam displacements, where the irradiated laser energy per unit length increased. Additional experimental investigation and thermal analysis concluded that property variations, such as increased reflectivity and thermal conductivity, suppressed the temperature increase and made it more difficult for the HAZ and nearby Ag NP to be ablated. Moreover, the ablated lines formed by a higher laser beam fluence and shorter laser beam displacement were not as ablated as the lines formed with a relatively lower laser beam fluence and longer laser beam displacement. Through detailed analysis, we deduced that the local fluence of the second laser beam irradiated on the HAZ was a more critical parameter than the peak fluence of the laser beam. We suggest that in the case of a Gaussian laser beam, the laser beam displacement should be equal to the radius of the ablation crater and HAZ to maximize the local fluence irradiated on the HAZ and minimize the adverse effects of the HAZ. The results can provide a guideline for future manufacturers to perform Ag NP layer ablation while considering the influence of the HAZ.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"72 ","pages":"Pages 65-77"},"PeriodicalIF":2.4,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403542","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

Investigation of Sr doping on structural, morphological, optical, photocatalytic and antifungal properties of NiO thin films prepared by spray coating technique

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-05 DOI: 10.1016/j.cap.2025.02.001

Srinivasa N. V , Basavaraj Angadi , Mahesh H. M , Srinivas C , Rajganesh M

{"title":"Investigation of Sr doping on structural, morphological, optical, photocatalytic and antifungal properties of NiO thin films prepared by spray coating technique","authors":"Srinivasa N. V , Basavaraj Angadi , Mahesh H. M , Srinivas C , Rajganesh M","doi":"10.1016/j.cap.2025.02.001","DOIUrl":"10.1016/j.cap.2025.02.001","url":null,"abstract":"<div><div>Metal oxide nanoparticles have been recognized as efficient, environmentally friendly alternatives to currently available materials for various industries, including food, dye, pharmaceutical, chemical, and environmental treatment. Given the extensive use of metal oxide thin films across these fields, the current work reports the successful synthesis of nanocrystalline Sr-doped NiO films using an eco-friendly spray pyrolysis technique for the photocatalytic degradation of Bromophenol Blue pollutant in wastewater treatment. These films were characterized by XRD, Raman, FTIR, FESEM, UV–Vis, and PL techniques. XRD analysis reveals that the crystallite size decreases from 14 nm to 9 nm as the dopant concentration increases. FTIR and Raman analyses identified surface oxygen interstitials and Ni defect-related vibrations. FESEM showed a continuous surface film with spherical polycrystalline morphology. An increase in optical transmittance and bandgap with the incorporation of Sr dopant was observed in the UV–Vis data. A decrease in PL intensity with increasing dopant concentration suggests a suppression of the recombination rate, as indicated by the PL analysis. The photocatalytic activity of the Sr-doped films was evaluated with Bromophenol Blue (BB) under UV–visible irradiation. The 6 % Sr-doped films successfully decomposed 81 % of the BB, demonstrating their effectiveness as catalysts. Additionally, these films exhibited a lower recombination rate, smaller particle size, and higher surface roughness. The 6 % Sr-doped sample showed the highest zones of inhibition, measuring 25 mm and 23 mm for <em>Aspergillus Niger</em> and <em>Penicillium</em> fungi, respectively. Overall, the Sr-doped NiO films were found to be effective in both the degradation of BB and antifungal activity.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"72 ","pages":"Pages 39-50"},"PeriodicalIF":2.4,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378509","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

Conductivity and magneto-optical response of film structures based on tungsten nanolayers with different phase composition

IF 2.4 4区物理与天体物理

Current Applied Physics Pub Date : 2025-02-04 DOI: 10.1016/j.cap.2025.02.002

A.V. Prokaznikov , R.V. Selyukov , V.A. Paporkov

引用次数: 0