Journal of Nanoelectronics and Optoelectronics最新文献

Characterization of ZnO/rGO Nanocomposite and Its Application for Photocatalytic Degradation 氧化锌/rGO 纳米复合材料的表征及其在光催化降解中的应用

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3487

Aini Ayunni Mohd Raub, J. Ridwan, Jamal Kazmi, Muhammad Aniq Shazni Mohammad Hanif, M. R. Buyong, Mohd Ambri Mohamed, J. Yunas

{"title":"Characterization of ZnO/rGO Nanocomposite and Its Application for Photocatalytic Degradation","authors":"Aini Ayunni Mohd Raub, J. Ridwan, Jamal Kazmi, Muhammad Aniq Shazni Mohammad Hanif, M. R. Buyong, Mohd Ambri Mohamed, J. Yunas","doi":"10.1166/jno.2023.3487","DOIUrl":"https://doi.org/10.1166/jno.2023.3487","url":null,"abstract":"Zinc oxide (ZnO) nanorods (NRs) with reduced graphene oxide (rGO) were successfully synthesized using a hydrothermal method with an additional spray coating. This paper focuses on the effect of rGO coating on charge transfer and interaction between ZnO and rGO that remarkably contributes to the enhancement of the electrical and optical properties of ZnO-based NRs. The synthesized ZnO/rGO nanocomposite was characterized using FESEM, PL spectroscopy and XPS. FESEM analysis results showed that the surface morphology of the synthesized NRs had a hexagonal rod structure covered with rGO layers on the tip of the rod. The Tauc Plot analysis revealed that the rGO layers reduced the bandgap of ZnO NRs from 3.25 eV to 3.17 eV, where the light absorption increased. The chemical composition, electronic state, and interactions between the elements in the ZnO NRs/rGO nanocomposites were investigated using XPS. The presence of oxygen species due to the rGO deposition layers is indicated by the shift of the peak position toward a greater binding energy. The hybridization of this semiconductor and graphene material reduced the bandgap and lowered the PL emission. Finally, the photocatalytic activity of ZnO NRs/rGO has been studied for methylene blue degradation via oxidation. The results showed that the photocatalytic reaction rate constant of ZnO NRs/rGO > pristine ZnO NRs.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"11 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrawideband Tunable Polarization Converter Based on Metamaterials 基于超材料的超宽带可调偏振转换器

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3481

Zhenyuan Zhu, Xiaolong Cao, Jiaqi Yuan, Yuchen Du, Tongchang Zhang

{"title":"Ultrawideband Tunable Polarization Converter Based on Metamaterials","authors":"Zhenyuan Zhu, Xiaolong Cao, Jiaqi Yuan, Yuchen Du, Tongchang Zhang","doi":"10.1166/jno.2023.3481","DOIUrl":"https://doi.org/10.1166/jno.2023.3481","url":null,"abstract":"In order to overcome the shortcomings of the traditional polarization conversion device, a symmetric “E” type metamaterial resonance cell structure is proposed in the paper for the design of polarization conversion devices. Two kinds of polarization converter models are designed in this paper, and their polarization coefficient, phase and polarization conversion ratio (PCR) are simulated and analyzed. The polarization coefficients at different incident angles and different phase transitions of VO2 are simulated and analyzed. The study indicates that the polarization conversion efficiency of the polarization converter reaches 90% in the 0–2.0 THz frequency band, and the performance can be maintained within the incident angle of 45 degrees, covering the whole X band, realizing the broadband line polarization conversion with extremely high polarization conversion rate. Moreover, the polarization performance is tunable with the phase transition of VO2, and the research results provide new ideas for the realization of ultrawideband tunable polarization conversion devices and the application of metamaterials.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"18 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139325538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terahertz Metamaterial Sensor Based on Electromagnetic Induced Transparency 基于电磁诱导透明度的太赫兹超材料传感器

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3500

Xiaoting Wan, Jin Lu, Meifen Chen, Ying Wang

引用次数: 0

Novel High-Gain Quadratic Buck-Boost Converter 新型高增益二次降压-升压转换器

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3480

Gao-Zhong Zhu

引用次数: 0

Current Re-Use Architecture and Pre-Distortion Technique Employing Re-Configurable Low Noise Amplifier for the Design of Nano-Electronic Sensors 利用可重新配置的低噪声放大器设计纳米电子传感器的电流再利用架构和预失真技术

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3491

K. Suganthi, S. Kayalvizhi, K. Ferents Koni Jiavana, S. Malarvizhi

引用次数: 0

Nanofluid Heat Transfer and Flow Characteristics in a Convex Plate Heat Exchanger Based on Multi-Objective Optimization 基于多目标优化的凸板式换热器中的纳米流体传热和流动特性

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3505

Wafa F. Alfwzan, Ghadah A. Alomani, Laila A. Alessa, Mahmoud M. Selim

{"title":"Nanofluid Heat Transfer and Flow Characteristics in a Convex Plate Heat Exchanger Based on Multi-Objective Optimization","authors":"Wafa F. Alfwzan, Ghadah A. Alomani, Laila A. Alessa, Mahmoud M. Selim","doi":"10.1166/jno.2023.3505","DOIUrl":"https://doi.org/10.1166/jno.2023.3505","url":null,"abstract":"Convex plate heat exchangers have drawn much interest across various industries thanks to their improved heat transfer efficiency and compact design. Research examines the characteristics of convex plate heat exchangers in this study through a combined experimental and numerical method. A mixture that contains water and copper nanoparticles is known as a copper-water nanofluid. A multi-objective optimization technique is used in this study to give an experimental and numerical evaluation of the nanofluid heat transfer and flow properties of a convex plate heat exchanger. Numerical execution is performed using the ANSYS software, and the materials for the convex plate are copper and water. This study aims to improve the nanofluid flow performance and the heat transfer efficiency of heat transfer of the heat exchanger by optimizing its design parameters. The heat exchanger’s temperature distributions and pressure drops are measured using an experimental setup, and numerical execution is used to forecast the heat transfer coefficients and pressure losses. The ideal design parameters that concurrently maximize heat transmission and minimize pressure drop are discovered using a multi-objective optimization technique. The findings of this study enable the creation of more effective and affordable heat exchanger layouts for various industrial applications by offering useful insights into the transfer of heat and flow behavior of the convex plate heat exchanger.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"29 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139326126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wafer Image Preprocessing Based on Density Based Spatial Clustering of Application with Noise 基于密度空间聚类的带噪声应用晶圆图像预处理

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3506

Zhang Wei, Shu-rui Hao

{"title":"Wafer Image Preprocessing Based on Density Based Spatial Clustering of Application with Noise","authors":"Zhang Wei, Shu-rui Hao","doi":"10.1166/jno.2023.3506","DOIUrl":"https://doi.org/10.1166/jno.2023.3506","url":null,"abstract":"With the development of microelectronic manufacturing technology, semiconductor manufacturing presents the trend of maximization of scale and miniaturization of process size. Even if the wafer production now has a high automation of the production process, high-precision production equipment and advanced production technology, wafer abnormal situation is still inevitable. Abnormal conditions in semiconductor manufacturing process will reduce the yield of wafer products and increase production costs. The later analysis becomes the necessary means to improve the wafer yield. With the rapid development of modern computing power, the application of machine learning-based automatic detection method in semiconductor production is irresistible. In addition to its spatial pattern, there are many noises that can affect the classification of defects, so it is necessary to preprocess the wafer diagram. The traditional density based spatial clustering of application with noise (DBSCAN) algorithm needs to determine two clustering parameters artificially, and the choice of parameters can affect the clustering effect easily, the parameter list was obtained by K-mean nearest neighbor algorithm and mathematical expectation method, and the integrated parameters of intra-cluster density and inter-cluster density after DBSCAN clustering were selected as evaluation indexes to select the optimal parameters. Finally, a self-adaptive (SA)-DBSCAN map is obtained by retaining the largest cluster, adding feature points and feature clusters, thus improving the yield of wafer.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"91 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139327300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pulsed Optoelectronic Rangefinder and Its Measurement Applications in Architectural Design Rationality Assessment 建筑设计合理性评估中的脉冲光电测距仪及其测量应用

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3498

Zhifang Cao

{"title":"Pulsed Optoelectronic Rangefinder and Its Measurement Applications in Architectural Design Rationality Assessment","authors":"Zhifang Cao","doi":"10.1166/jno.2023.3498","DOIUrl":"https://doi.org/10.1166/jno.2023.3498","url":null,"abstract":"The laser rangefinder is a device that combines various technologies such as optoelectronics, electronics, microcontroller control technology, signal control, processing technology, and precision mechanical technology. This device has wide application value in aerospace, automatic control, industry, military, geodesy, and construction surveying, among other fields. The pulse laser rangefinder designed uses the SPLLL90_3 laser emitting diode for the laser emission circuit and employs the AD500_9 laser receiving diode for the laser reception circuit. The design of the laser emission circuit includes laser diode selection, emission, sample signal’s modulation circuit design, pulse signal generation, and driving circuit. The design of the laser reception circuit includes laser receiving diode selection, laser reception pulse signal’s acquisition circuit, reception signal adjustment circuit, and microcontroller peripheral circuit. After completing the hardware design of the pulse laser rangefinder, performance testing is conducted. The laser emission waveform and reception waveform are tested under an oscilloscope. The results show that the emission pulse generation and reception pulse acquisition circuits work normally. Range tests show that the rangefinder has a high degree of fit between theoretical and actual measurement distances within a certain time interval, meeting the design expectations. The designed optoelectronic rangefinder is adopted to evaluate the rationality of the design of building wall freeform surfaces through measurement. The results suggest that the designed optoelectronic rangefinder achieves higher detection efficiency and accuracy compared to traditional evaluation methods.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"37 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139325356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Performance Analysis of Automobile Headlamp Based on Light-Emitting Diode 基于发光二极管的汽车前大灯设计与性能分析

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3499

Sanshan Xie

{"title":"Design and Performance Analysis of Automobile Headlamp Based on Light-Emitting Diode","authors":"Sanshan Xie","doi":"10.1166/jno.2023.3499","DOIUrl":"https://doi.org/10.1166/jno.2023.3499","url":null,"abstract":"As a vital component of the automobile headlamp, its design is not only related to power loss but also affects the appearance of the automobile. Most importantly, its design directly affects the night lighting effect and driving safety. Compared with the traditional headlamp light source, light-emitting diode (LED) light source has the advantages of long lifespan, small size, fast response, flexible design, flexible control, and so on. Based on this, this study designs high-power white LED automobile headlamps, adopts the commonly used reflector design technology, and puts forward the design scheme of the lighting group system. This scheme relies on a reflector for light distribution, without needing a baffle or lens with light distribution patterns. The optical design software TracePro and the three-dimensional design software PROE are used to simulate and design the reflectors of low and high beams, respectively. The simulation results of the reflector of the low beam show that more than 490000 rays of light reach the filament shield, with a light utilization rate of over 95%. The horizontal cut-off line and 15° light and dark cut-off lines are clearly visible, and the front window material is closed. Considering this factor, the illumination distribution of the low beam meets relevant national regulations. The high beam reflector simulation results reveal that over 960000 light rays reach the filament shield, with a more than 95% light utilization rate. The light spot is symmetrical. If the front window material is polycarbonate and not coated, the absorption and scattering of light are ignored, and the transmittance of the beam through the two optical surfaces achieves 90%.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"11 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139328963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cross-Modal PET Synthesis Method Based on Improved Edge-Aware Generative Adversarial Network 基于改进的边缘感知生成对抗网络的跨模态 PET 合成方法

IF 0.6 4区工程技术

Journal of Nanoelectronics and Optoelectronics Pub Date : 2023-10-01 DOI: 10.1166/jno.2023.3502

Liting Lei, Rui Zhang, Haifei Zhang, Xiujing Li, Yuchao Zou, Saad Aldosary, Azza S. Hassanein

{"title":"Cross-Modal PET Synthesis Method Based on Improved Edge-Aware Generative Adversarial Network","authors":"Liting Lei, Rui Zhang, Haifei Zhang, Xiujing Li, Yuchao Zou, Saad Aldosary, Azza S. Hassanein","doi":"10.1166/jno.2023.3502","DOIUrl":"https://doi.org/10.1166/jno.2023.3502","url":null,"abstract":"Current cross-modal synthesis techniques for medical imaging have limits in their ability to accurately capture the structural information of human tissue, leading to problems such edge information loss and poor signal-to-noise ratio in the generated images. In order to synthesize PET pictures from Magnetic Resonance (MR) images, a novel approach for cross-modal synthesis of medical images is thus suggested. The foundation of this approach is an enhanced Edge-aware Generative Adversarial Network (Ea-GAN), which integrates an edge detector into the GAN framework to better capture local texture and edge information in the pictures. The Convolutional Block Attention Module (CBAM) is added in the generator portion of the GAN to prioritize important characteristics in the pictures. In order to improve the Ea-GAN discriminator, its receptive field is shrunk to concentrate more on the tiny features of brain tissue in the pictures, boosting the generator’s performance. The edge loss between actual PET pictures and synthetic PET images is also included into the algorithm’s loss function, further enhancing the generator’s performance. The suggested PET image synthesis algorithm, which is based on the enhanced Ea-GAN, outperforms different current approaches in terms of both quantitative and qualitative assessments, according to experimental findings. The architecture of the brain tissue are effectively preserved in the synthetic PET pictures, which also aesthetically nearly resemble genuine images.","PeriodicalId":16446,"journal":{"name":"Journal of Nanoelectronics and Optoelectronics","volume":"16 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139331530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0