Journal of Computational Electronics最新文献

Characteristics of a V-shaped rectenna for 28.3 THz energy harvesting

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-03-05 DOI: 10.1007/s10825-025-02295-5

Aboubacar Savadogo, Thomas Nyachoti Nyangonda, Bernard Odhiambo Aduda, Uli Lemmer, Mohamed Hussein

{"title":"Characteristics of a V-shaped rectenna for 28.3 THz energy harvesting","authors":"Aboubacar Savadogo, Thomas Nyachoti Nyangonda, Bernard Odhiambo Aduda, Uli Lemmer, Mohamed Hussein","doi":"10.1007/s10825-025-02295-5","DOIUrl":"10.1007/s10825-025-02295-5","url":null,"abstract":"<div>A rectenna structure based on a potentially printable V-shaped nanoantenna (VSNA) design is introduced and numerically analyzed. The characteristics of the VSNA structure have been investigated through the electric field enhancement and radiation efficiency used as figures of merit to evaluate its performance. A comparative study has been performed between the VSNA and a conventional dipole THz antenna based on the same dimension constraints. Therefore, the VSNA has shown better and more localized field enhancement at the arm tips. Furthermore, an optimization process has been carried out to maximize the electric field at the resonance frequency (28.3 THz). The suggested design offers more than 300% improvement in electric field confinement compared to a conventional dipole antenna at 28.3 THz. This enhancement is attributed to the tip-to-tip geometry, leading to a highly localized field at the tip. Further, the optimized VSNA design is employed to form a rectenna structure by inserting an ultra-thin insulator layer between the tips of the antenna arms. The reported rectenna structure increases total efficiency from 11 to 26.58%, with a 141% improvement over previously reported work. Beyond the potentialities presented by the proposed design, its simplicity makes it manufacturable for efficient energy harvesting applications. Finally, the metal–insulator–metal (MIM) diode rectification capabilities have been investigated through a quantum mechanical simulator (built on MATLAB software) with aluminum oxide (Al2O3) as an insulator sandwiched between gold (Au) and silver (Ag). The suggested MIM diode (Au/Al2O3/Ag) offers a zero–bias responsivity of 0.93 A/W, which is higher than the previous work based on Al2O3 which was 0.5 A/W.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10825-025-02295-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553674","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

Iterative methods for solving g-functions: a review, comparative evaluation, and application in the solar cell domain

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-03-04 DOI: 10.1007/s10825-025-02298-2

Martin Calasan

{"title":"Iterative methods for solving g-functions: a review, comparative evaluation, and application in the solar cell domain","authors":"Martin Calasan","doi":"10.1007/s10825-025-02298-2","DOIUrl":"10.1007/s10825-025-02298-2","url":null,"abstract":"<div>The voltage–current characteristics of solar cell models, regardless of the equivalent circuits used, are nonlinear functions that can be mathematically represented by the g-function. Computational modeling plays a key role in solving such complex functions, enabling accurate simulations and efficient solutions that are essential for optimizing solar cell performance. This paper first provides a comprehensive overview and comparative evaluation of several iterative methods used to solve the g-function. Next, the accuracy of these iterative methods across both positive and negative values of the functional argument is assessed. The number of iterations required to achieve the desired accuracy is then analyzed, along with the influence of accuracy on the number of iterations. Additionally, the computation times of all the observed methods are examined, along with the impacts of the initial values on the required number of iterations. Finally, the paper demonstrates the application of the proposed iterative methods for voltage calculations within a single-diode model of solar cells. The findings suggest that the Halley iterative method demonstrates superior efficiency, requiring fewer iterations for accurate results and lower computation time, whereas the Newton and Ostrowski methods yield similar performance. MATLAB codes for each iterative method discussed are provided, ensuring their applicability for addressing various engineering challenges related to the g-function.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553894","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

Influence of non-metal doping and biaxial strain on the photovoltaic characteristics of monolayer 1T-PtSe2

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-28 DOI: 10.1007/s10825-025-02299-1

Yao Dong, Lu Yang, Jinlin Bao, Huaidong Liu, Yanshen Zhao, Xingbin Wei, Shihang Sun

{"title":"Influence of non-metal doping and biaxial strain on the photovoltaic characteristics of monolayer 1T-PtSe2","authors":"Yao Dong, Lu Yang, Jinlin Bao, Huaidong Liu, Yanshen Zhao, Xingbin Wei, Shihang Sun","doi":"10.1007/s10825-025-02299-1","DOIUrl":"10.1007/s10825-025-02299-1","url":null,"abstract":"<div>In this paper, the optoelectronic performance of monolayer 1T-PtSe2 materials under doping and biaxial tensile strain are investigated, with a focus on the impact of doping with second-period non-metal elements on the optoelectronic properties of the materials. By calculating the formation energy of each dopant system, it was found that the stability of each dopant system is in the order of Ne < F < N < O. The band gap of O-doped system is reduced, and the valence band of the N-doped system crosses the Fermi energy level. The forbidden bandwidth of the monolayer 1T-PtSe2 decreases with increasing applied biaxial strain and reaches a minimum when the strain reaches − 8%, and the nature of the bandgap remains as an indirect bandgap. When the photon energy reaches 4 eV, the absorption peak of the N-doped system is significantly enhanced. The compressive strain resulted in an elevated absorption peak in the monolayer 1T-PtSe2 system. This result provides a valuable reference for the potential application of this material in microelectronics and optics.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521794","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

Modeling of effective mobility in 3D NAND flash memory with polycrystalline silicon channel

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-28 DOI: 10.1007/s10825-025-02293-7

Juhyun Kim, Hyungcheol Shin

{"title":"Modeling of effective mobility in 3D NAND flash memory with polycrystalline silicon channel","authors":"Juhyun Kim, Hyungcheol Shin","doi":"10.1007/s10825-025-02293-7","DOIUrl":"10.1007/s10825-025-02293-7","url":null,"abstract":"<div>In this paper, based on exponentially distributed trap density of states (DOS) for grain boundary, a solution to effective mobility (μeff) is derived. Within the model, an effective width of grain boundary (GB) depletion region (LGB.eff) and drain induced grain barrier lowering effect on GB barrier height (ψB), is considered. The μeff model is then verified with μeff extracted from simulation. To this end, a computer aided design simulation is calibrated against the experimental data and μeff is then calculated from the simulated channel current. The μeff model is compared with calculated μeff to validate the model and a good agreement between them is achieved. In addition, we also investigate the dependence of μeff on GB DOS parameters and device temperature. The same validation process is also performed at various GB locations and angles to analyze the effect of GB shape on μeff.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521579","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

An efficient computational model for single-molecule optoelectronic devices

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-27 DOI: 10.1007/s10825-025-02287-5

Alberto Bottacin, Fabrizio Mo, Chiara Elfi Spano, Yuri Ardesi, Gianluca Piccinini, Mariagrazia Graziano

{"title":"An efficient computational model for single-molecule optoelectronic devices","authors":"Alberto Bottacin, Fabrizio Mo, Chiara Elfi Spano, Yuri Ardesi, Gianluca Piccinini, Mariagrazia Graziano","doi":"10.1007/s10825-025-02287-5","DOIUrl":"10.1007/s10825-025-02287-5","url":null,"abstract":"<div>The growing interest in tuning the conduction properties of single-molecule junctions has drawn attention to studying their interaction with incident electromagnetic fields. The theoretical complexity of this problem necessitates the use of nonequilibrium statistical mechanics combined with quantum electrodynamics, leading to extremely time-consuming simulations. In this work, we propose a computationally efficient algorithm, which combines EE-BESD—an efficient and effective simulator of current–voltage characteristics in dark conditions—with approximated models for light interaction, specifically the Tien-Gordon and Floquet models. We validate EE-BESD-PAT through comparison with ab initio calculations and experimental data from the literature. Our computational model demonstrates good agreement with both experimental and density functional theory calculations, demonstrating that the proposed method is a promising computationally efficient tool without sacrificing accuracy.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10825-025-02287-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513115","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

Quantum-dot cellular automata serial decimal digit multiplier

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-27 DOI: 10.1007/s10825-025-02279-5

Michael Gladshtein

引用次数: 0

Dual-polarization controllable terahertz wave metasurface

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-26 DOI: 10.1007/s10825-025-02294-6

Jiu-Sheng Li, Feng-Lei Guo, Ri-Hui Xiong

引用次数: 0

Investigation of stability parameters of a gate-stack junctionless double-gate transistor (GS-JLDGT)-based 6T and 3T SRAM in the presence of traps

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-25 DOI: 10.1007/s10825-025-02285-7

Neha Garg, Yogesh Pratap, Sneha Kabra

{"title":"Investigation of stability parameters of a gate-stack junctionless double-gate transistor (GS-JLDGT)-based 6T and 3T SRAM in the presence of traps","authors":"Neha Garg, Yogesh Pratap, Sneha Kabra","doi":"10.1007/s10825-025-02285-7","DOIUrl":"10.1007/s10825-025-02285-7","url":null,"abstract":"<div>In light of the continuously rising demand for portable handheld devices in day-to-day life and in specific applications such as biomedical systems (blood pressure monitors, pacemakers, and hearing aids), stable digital systems with low area and power consumption are required. Static random-access memory (SRAM) is a fundamental component of digital systems, and hence stable and efficient design of SRAM is critical. This paper reports on the stability and reliability of a SRAM device designed using a gate-stack junctionless double-gate transistor (GS-JLDGT). The proposed GS-JLDGT is used to implement a six-transistor (6T) SRAM, and the GS-JLDGT structure is then modified by adding an oxide layer in the middle and utilized to design a 3T SRAM. As a result, the area occupied by the proposed 3T SRAM is reduced by almost half as compared to a conventional 6T SRAM layout. The reliability assessment of the designed SRAM is carried out by the inclusion of interface trap charges at the oxide–semiconductor interface. The results show that the presence of the interface trap charges leads to degradation in the voltage transfer curve (VTC) and hence significant deviations in various stability parameters, including the retention noise margin (RNM), static noise margin (SNM), static voltage noise margin (SVNM), static current noise margin (SINM), write trip voltage (WTV), and write trip current (WTI) of the device. In addition, the impact of temperature variation along with trap charges is investigated with respect to the stability of the GS-JLDGT-based 6T SRAM. The results indicate that as the temperature increases, distortion due to trap charges also increases significantly.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489557","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

A novel two-input NOR logic gate using a dual-gate field effect transistor based on an OPE molecule

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-25 DOI: 10.1007/s10825-025-02297-3

Masoumeh Tirgar Fakheri, Mohammad A. Tehrani, Keivan Navi

{"title":"A novel two-input NOR logic gate using a dual-gate field effect transistor based on an OPE molecule","authors":"Masoumeh Tirgar Fakheri, Mohammad A. Tehrani, Keivan Navi","doi":"10.1007/s10825-025-02297-3","DOIUrl":"10.1007/s10825-025-02297-3","url":null,"abstract":"<div>Nanotechnology has revolutionized circuit design by enabling highly efficient and compact components. Central to this innovation is the two-input NOR logic gate, a universal element in logic circuits that facilitates the construction of diverse logic configurations. Its versatility plays a pivotal role in digital logic design, particularly within the realm of molecular transistor technology, where miniaturization and efficiency are paramount. In this paper, a novel device is presented based on the Oligo (phenylene ethynylene) (OPE) molecule. OPE molecules offers significant advantages in digital circuits due to their superior electronic properties, nanoscale size, self-assembling capabilities, and tunable characteristics. By leveraging this intriguing feature of the proposed dual-gate molecular transistor, a two-input NOR logic gate is realized. The study employs advanced simulation techniques, including Non-Equilibrium Green’s Function formalism and density functional theory, to model quantum transport properties. Insights gained from these simulations elucidate the performance and reliability of molecular transistors under varying operational conditions, advancing our understanding of their potential in future nanoelectronics applications.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481052","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

Peripheral modifications of DTP-C6TH to attain dopant-free hole transporting materials of efficient photovoltaic properties

IF 2.2 4区工程技术

Journal of Computational Electronics Pub Date : 2025-02-24 DOI: 10.1007/s10825-025-02286-6

Rabia Shakeel, Raheela Sharafat, Ume Salma, Shaimaa A. M. Abdelmohsen, Haifa A. Alyousef, Javed Iqbal

{"title":"Peripheral modifications of DTP-C6TH to attain dopant-free hole transporting materials of efficient photovoltaic properties","authors":"Rabia Shakeel, Raheela Sharafat, Ume Salma, Shaimaa A. M. Abdelmohsen, Haifa A. Alyousef, Javed Iqbal","doi":"10.1007/s10825-025-02286-6","DOIUrl":"10.1007/s10825-025-02286-6","url":null,"abstract":"<div>Perovskite solar cells (PSCs) possess high potential to generate electricity. As, hole transport material (HTM) is the main factor of concern so, in current study, with the purpose of improving power efficiency ratio of PSCs, a series of five novel molecules, namely DTP1, DTP2, DTP3, DTP4 and DTP5 have been created computationally by structural modifications of dithieno [3,2-b:2′,3′-d]pyrol cored (DTP-C6TH) HTM. Five different electron-deficient acceptor moieties are substituted at the peripheral sites of the reference molecule (DTP-C6TH). To predict the efficiency of these newly fabricated molecules, their optoelectronic characteristics have been investigated by using MPW1PW91 DFT approach coupled to the basis set 6-31G (d, p). All structures are optimized by executing same DFT method by frontier molecular orbitals (FMOs) evaluations has been performed which suggests an excellent charge transport rate in all fabricated molecules (DTP1-DTP5). Further, density of states was studied that describes the involvement of all segments of recently designed molecules in the synthesis of molecular orbitals HOMO and LUMO. Results illustrate the energy gap estimations pertaining formulated molecules are significantly reduced relative to reference molecule (2.99 eV) with sequence of DTP5 = 2.29 eV > DTP1 = 2.11 eV > DTP2 = 2.04 > DTP3 = 1.93 eV > DTP4 = 1.73 eV. Absorption spectrum has been analyzed and a red shift in the wavelength is perceived in all designed molecules (532–739 nm). Transition density matrix evaluations TDM, reorganizational energies (RE), open circuit voltage Voc and power conversion efficiency (PCE) for all architecture molecules have been computed and it is concluded from the outcomes that these newly planned molecules possess efficient opto-electronic properties with enhanced PCE of up to 24.3% and can be used in future as HTMs for application in Perovskite solar cells.</div>","PeriodicalId":620,"journal":{"name":"Journal of Computational Electronics","volume":"24 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481088","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