Journal of Computational Electronics最新文献_第2页

Behavioral modeling of a CGS/CIGS tandem solar cell using PyAMS: integrating electrical and optical models for performance validation 基于PyAMS的CGS/CIGS串联太阳能电池行为建模：集成电学和光学模型以进行性能验证

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-04-12 DOI: 10.1007/s10825-026-02536-1

Dhiabi Fathi

{"title":"Behavioral modeling of a CGS/CIGS tandem solar cell using PyAMS: integrating electrical and optical models for performance validation","authors":"Dhiabi Fathi","doi":"10.1007/s10825-026-02536-1","DOIUrl":"10.1007/s10825-026-02536-1","url":null,"abstract":"<div>In this work, we present a novel behavioral model for a CGS/CIGS tandem solar cell developed using PyAMS, a Python-based framework for analog and mixed-signal simulations. Starting from a previously published reference cell, the device was re-modeled by means of the PyAMS methodology, which combines both electrical and optical modeling. The electrical part represents the solar cell through voltage-dependent current sources and intrinsic parameters, while the optical part accounts for absorption processes and bandgap-dependent properties of the active layers. Quantitative comparison with published experimental results shows very good agreement, validating the accuracy of the proposed model. The main novelty of this work lies in the development of a unified behavioral model that integrates both electrical and optical effects within PyAMS. The model not only validates experimental data but also demonstrates the impact of bandgap engineering and absorber thickness optimization, leading to an efficiency improvement of about 2%, reaching 28.6%. These findings highlight the capability of PyAMS as a flexible and extensible tool for accelerating the modeling and performance evaluation of tandem solar cells.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737324","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

Optical soliton analysis of an integrable wave packet envelope equation with conformable derivative 具有相容导数的可积波包包络方程的光孤子分析

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-04-11 DOI: 10.1007/s10825-026-02534-3

Salim S. Mahmood, Muhammad Amin S. Murad, Hadi Rezazadeh, Ulviye Demirbilek, Soheil Salahshour

{"title":"Optical soliton analysis of an integrable wave packet envelope equation with conformable derivative","authors":"Salim S. Mahmood, Muhammad Amin S. Murad, Hadi Rezazadeh, Ulviye Demirbilek, Soheil Salahshour","doi":"10.1007/s10825-026-02534-3","DOIUrl":"10.1007/s10825-026-02534-3","url":null,"abstract":"<div>We study precise traveling wave solutions for a higher-order integrable wave packet envelope equation with conformable fractional derivatives for ultrashort pulse propagation with higher-order dispersion and nonlinear effects in optical fibers. The generalized exponential rational function technique is applied systematically to construct distinct families of analytical solutions: bright, dark, kink, and singular soliton structures. The dynamics of these optical pulses are shown in detailed 2D and 3D images of multiple conformable derivative orders, showing that fractional-order parameters play a major role in determining the wave propagation characteristics and stability. The solutions have provided unique information to design optical communication systems and control pulse dynamics in nonlinear photonic devices. This work presents a new, quantitative tool to perform complex analysis of fractional nonlinear wave interaction in modern fiber optic optical circuits, serving as a link between theory and practical integration in high-speed optical networks.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10825-026-02534-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high gain UWB antenna with ENG metasurface as a biosensor for cancer diagnosis 一种带ENG超表面的高增益超宽带天线，用于癌症诊断的生物传感器

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-04-07 DOI: 10.1007/s10825-026-02537-0

Balu Ashvanth, Bactavatchalame Partibane

{"title":"A high gain UWB antenna with ENG metasurface as a biosensor for cancer diagnosis","authors":"Balu Ashvanth, Bactavatchalame Partibane","doi":"10.1007/s10825-026-02537-0","DOIUrl":"10.1007/s10825-026-02537-0","url":null,"abstract":"<div>Besides providing multiple services for emerging applications, ultra-wideband antennas play an important role in cancer detection in human tissues by acting as biosensors. The proposed biosensor consists of a slotted ground patch antenna (SGPA) backed by a metasurface (MS). The reported antenna’s expanded meandering line topology reduces size to ({0.08lambda }^{2}). The etching of ground slots induces a multiple resonance which encompasses together to form UWB ranging from 3.92 GHz to 13.1 GHz. The metasurface is made up of 3 × 5 arrangement of an epsilon negative (ENG) metamaterials. The ENG property of the presented metamaterial redirects the signal in the forward direction and thus enhances the gain to 7.2 dBi. The estimated group delay and fidelity factor (FF) for the proposed biosensing system are under 1 ns and 85.8%, respectively, which guarantees minimal distortion. The measurements are done with breast cancer detection system which consists of dual antenna with MS acting as a biosensor, breast model with tumor and imaging system to perform microwave imaging (MWI) for detecting cancerous tumors.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642828","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

Performance optimization in ZrOx-based RRAM devices with current modulation layer 具有电流调制层的zrox RRAM器件的性能优化

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-04-02 DOI: 10.1007/s10825-026-02539-y

Fei Yang, Yujie Xie, Junlong Liu, Houwei Zhu, Yixiang Cheng, Qingsong Shu, Xuanyang Zhao

引用次数: 0

A ML–DFT-based synergy to design new phenazine-based photovoltaic polymer designs with lowest exciton binding energies 基于ml - dft的协同设计具有最低激子结合能的新型非那嗪基光伏聚合物

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-03-28 DOI: 10.1007/s10825-026-02538-z

Saif-Ddin K. Mohammed, Fatima J. Hassoun, Hussein A. K. Kyhoiesh, Hassan E. Abd Elsalam, Islam H. El Azab, Mohammed F. Hassan

{"title":"A ML–DFT-based synergy to design new phenazine-based photovoltaic polymer designs with lowest exciton binding energies","authors":"Saif-Ddin K. Mohammed, Fatima J. Hassoun, Hussein A. K. Kyhoiesh, Hassan E. Abd Elsalam, Islam H. El Azab, Mohammed F. Hassan","doi":"10.1007/s10825-026-02538-z","DOIUrl":"10.1007/s10825-026-02538-z","url":null,"abstract":"<div>This study pioneers a machine learning-guided quantum design strategy to engineer phenazine-based photovoltaic polymers with record optimized exciton binding energies (Eb) 0.33–0.42 eV, a critical breakthrough for enhancing charge separation in organic solar cells. The Eb is defined and computed as the difference between the fundamental gap (energy of the lowest charge transfer state) and the optical gap (energy of the first excited singlet state), obtained from time-dependent DFT calculations. Leveraging DFT calculations on 618 polymers, we extracted 210 molecular descriptors and trained predictive models, identifying random forest as the optimal predictor (R2 = 0.94, RMSE = 0.006). Crucially, feature importance analysis revealed electron mobility and BertzCT connectivity as dominant Eb regulators—insights impossible through traditional screening. We then designed novel 2,2’-((2Z,2′Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b’]dithiophene-2,7-diyl)bis(methanylylidene)) bis (3-oxo-2,3-dihydro-1H-indene-2,1-diylidene)) dimalononitrile (IDIC)-derived chromophores by integrating ML-prioritized acceptors. Frontier orbital analysis confirmed enhanced charge separation, while photovoltaic characterization demonstrated unprecedented performance in chromophore 4 (Voc = 1.71V, Jsc = 35.02 mA/cm2, LHE = 95%). The achieved sub-0.01 eV Eb range is significantly lower than the typical 0.3–1.0 eV range reported for high-performance OPV polymers, marking a substantial advance. This work establishes a new paradigm for the rapid discovery of high-efficiency OPV materials, directly addressing the voltage/current trade-off in next-generation solar technologies.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562005","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

Ultra-broadband plasmonic metasurface solar absorber based on graphene–tungsten composites for full-spectrum solar energy harvesting and sustainable energy applications 基于石墨烯-钨复合材料的超宽带等离子体超表面太阳能吸收体，用于全光谱太阳能收集和可持续能源应用

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-03-27 DOI: 10.1007/s10825-026-02532-5

M. Bhoopathi, N. A. Natraj, V. Reji, U. Arun Kumar

{"title":"Ultra-broadband plasmonic metasurface solar absorber based on graphene–tungsten composites for full-spectrum solar energy harvesting and sustainable energy applications","authors":"M. Bhoopathi, N. A. Natraj, V. Reji, U. Arun Kumar","doi":"10.1007/s10825-026-02532-5","DOIUrl":"10.1007/s10825-026-02532-5","url":null,"abstract":"<div>A broadband multi resonators metasurface solar absorber with high efficiency for sustainable energy harvesting is proposed in this work. The proposed design combines aluminium and tungsten-coated resonators over the enhanced graphene substrate, leveraging synergistic nanophotonic effects to attain ultra-wide band absorption (0.2 to 3.0 µm). The synergy is originated from three phenomenon’s (1) localized surface plasmon resonance (LSPR) in aluminium-coated resonators which confines electromagnetic energy in the UV region (0.2–0.4 µm) (2) surface plasmon polaritons (SPP) with tungsten-coated resonators propagate along the metal–dielectric interface with extended absorption and efficiency in MIR region (2.5–3.0 µm) (3) exceptional point physics generates strong interaction between aluminium LSPR and W generated SPP mode, which suppresses the band gaps across the visible (0.4–0.7 µm) and near-infrared region (0.7–2.5 µm). Modeling and analysis based on the Maxwell’s equations along with the parameters of the materials, delivers and average efficiency of absorption > 96.4% and with a peak of 99.98% in the visible region. The proposed absorber is capable of delivering angular stability > 95% for angle of incidence up to 500 in both TE and TM polarizations. The proposed design is scalable and fabrication tolerant as it has a minimal thickness value of 1400 nm and the usage of robust materials like tungsten and graphene ensures the durability and reliability. The proposed design is integrated with nanophotonics, facilitating the development of compact sustainable energy technology aligned with SDG 13 of clean energy and climatic action.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147562046","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

Inverse design of a 4 × 2 photonic crystal encoder based on an improved particle swarm optimization algorithm 基于改进粒子群优化算法的4 × 2光子晶体编码器反设计

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-03-27 DOI: 10.1007/s10825-026-02535-2

Cong Hu, Tianhao Huang, Tian Zhou, Aijun Zhu, Lijuan Zhang, Xijun Huang

{"title":"Inverse design of a 4 × 2 photonic crystal encoder based on an improved particle swarm optimization algorithm","authors":"Cong Hu, Tianhao Huang, Tian Zhou, Aijun Zhu, Lijuan Zhang, Xijun Huang","doi":"10.1007/s10825-026-02535-2","DOIUrl":"10.1007/s10825-026-02535-2","url":null,"abstract":"<div>As chip dimensions approach their physical limits, unavoidable thermal effects and quantum tunneling phenomena necessitate novel solutions. This paper proposes an inverse design structure of an all-optical 4 × 2 encoder based on an insulator silicon substrate platform. This structure consists of four input waveguides, two output waveguides, and an optimization area with a size of 2.4 μm × 2.4 μm. This structure is designed through reverse engineering. The reverse design optimization algorithm adopts an improved particle swarm algorithm, which can enhance its global search capability and effectively avoid getting trapped in local optimal solutions. Measurements indicate that the normalized output power in the dual-channel pass state exceeds 0.43, while in the single-channel pass state it surpasses 0.75. The normalized output power in the non-pass state is zero. The proposed encoder structure features a compact footprint and small volume, capable of performing 4 × 2 encoder logic operations. Its design on an insulating silicon substrate platform facilitates integration into optical circuits.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561373","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

Finite-element modeling of fractional quantum transport and optical response in coupled quantum dot–ring nanostructures with donor impurities 含给体杂质耦合量子点环纳米结构中分数阶量子输运和光学响应的有限元建模

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-03-24 DOI: 10.1007/s10825-026-02533-4

Lakhdar Sek, Issam Zaiz, Abdelmonem Miloudi

{"title":"Finite-element modeling of fractional quantum transport and optical response in coupled quantum dot–ring nanostructures with donor impurities","authors":"Lakhdar Sek, Issam Zaiz, Abdelmonem Miloudi","doi":"10.1007/s10825-026-02533-4","DOIUrl":"10.1007/s10825-026-02533-4","url":null,"abstract":"<div>We develop a finite-element computational framework for modeling fractional quantum transport in semiconductor nanostructures using the fractional effective mass Schrödinger equation. The method is applied to a singly ionized double donor ((textrm{D}_2^+)) confined in a GaAs/AlGaAs coupled quantum dot–ring structure under Aharonov–Bohm flux, Rashba spin–orbit coupling, hydrostatic pressure, and external electric fields. The fractional kinetic operator ((0 < alpha le 2)) is implemented via its Dirichlet integral representation within an adaptive finite-element scheme combined with shift-invert Lanczos eigensolvers. Numerical convergence is verified through mesh refinement and recovery of the classical limit as (alpha rightarrow 2). Simulations show that decreasing (alpha ) enhances donor binding, increases bonding–antibonding splitting, strengthens localization, and suppresses ring-mediated tunneling. Fractional dispersion attenuates Aharonov–Bohm oscillations and modifies Rashba-induced spin splitting. Optical absorption calculated from the computed eigenstates exhibits redshifts and enhanced nonlinear response for reduced (alpha ). These results demonstrate the stable integration of nonlocal fractional operators in realistic nanoelectronic geometries and provide a computational tool for analyzing generalized quantum transport in confined semiconductor systems.\u0000</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561179","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

Exploration of intriguing photovoltaic performance of selenophene-based functionalized A1–π–A2–π–A1-type materials: a DFT-based model study 硒烯基功能化A1 -π-A2 - π - A1型材料光电性能的探索：基于dft的模型研究

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-03-24 DOI: 10.1007/s10825-026-02530-7

Sadia Jamal, Muhammad Arshad, Kousar Imran, Khalid Mahmood, Khansa Gull, Muhammad Nadeem Akhtar, Norah Alhokbany, Muhammad Imran

{"title":"Exploration of intriguing photovoltaic performance of selenophene-based functionalized A1–π–A2–π–A1-type materials: a DFT-based model study","authors":"Sadia Jamal, Muhammad Arshad, Kousar Imran, Khalid Mahmood, Khansa Gull, Muhammad Nadeem Akhtar, Norah Alhokbany, Muhammad Imran","doi":"10.1007/s10825-026-02530-7","DOIUrl":"10.1007/s10825-026-02530-7","url":null,"abstract":"<div>Non-fullerene acceptors (NFAs) provide improved solar cell efficiency and design versatility. This study involved the design of selenazole-based molecules (SPM1–SPM10) featuring an A1–π–A2–π–A1 architecture, achieved by modifying the SPMR reference by the inclusion of selenophene spacer and benzothiophene-based acceptors. DFT/TD-DFT methods were used at the M06/6-311G(d,p) level to perform various analyses including the FMOs, UV–Vis spectra, DOS, exciton binding energy, TDM, and open-circuit voltage (Voc) to investigate the optoelectronic characteristics. The results showed reduced energy gaps (2.059–2.274 eV), red-shifted absorption (751.419–807.662 nm), and low exciton binding energies (0.524–0.569 eV), hence corroborating efficient charge separation. Among all, SPM6 exhibited promising optical properties such as the least energy gap (Egap = 2.059 eV) and highest absorption (λmax = 807.662 nm). These chromophores also showed significant photovoltaic properties (Voc = 1.601–1.929 V). Thus, they represent promising contenders for next-generation organic solar cells.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"25 2","pages":""},"PeriodicalIF":2.5,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561039","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

Selective state filtering in NEGF: a method for quantum state sensitivity analysis NEGF中的选择性状态滤波：一种量子态灵敏度分析方法

IF 2.5 4区工程技术

Journal of Computational Electronics Pub Date : 2026-03-23 DOI: 10.1007/s10825-026-02531-6

Manas Pratap, Logan Melican, Tillmann Kubis

引用次数: 0