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Numerical Simulation of Optoelectronic Devices, 2014最新文献

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Nanohole design for high performance polymer solar cell 高性能聚合物太阳能电池的纳米孔设计
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935354
Doha. M. A. Rahman, M. Hameed, S. Obayya
{"title":"Nanohole design for high performance polymer solar cell","authors":"Doha. M. A. Rahman, M. Hameed, S. Obayya","doi":"10.1109/NUSOD.2014.6935354","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935354","url":null,"abstract":"A novel design of nanohole polymer solar cell (NHPSC) is reported for light trapping improvement. The proposed design has shown a considerable enhancement in the optical and electrical parameters of the polymer solar cell based on a conventional blend of poly-3-hexylthiophene/ [6, 6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) as an active material. In this study, 3D finite difference time domain method is used to simulate the light absorption in the nanohole structure. In addition, an electrical model is developed to calculate the electrical parameters of the polymer solar cell. The reported design has shown 28% improvement in short circuit current density and overall efficiency alike.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133618908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Circuit model of UTC-PD with high power and enhanced bandwidth technique 采用大功率增强带宽技术的UTC-PD电路模型
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935371
Senjuti Khanra, A. Barman
{"title":"Circuit model of UTC-PD with high power and enhanced bandwidth technique","authors":"Senjuti Khanra, A. Barman","doi":"10.1109/NUSOD.2014.6935371","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935371","url":null,"abstract":"An electrical equivalent circuit model of InGaAs/InP uni travelling carrier photodiode is presented. The model is suitable to be built on any electrical circuit simulator to perform design and optimize the device parameters. We have shown a novel technique of increasing bandwidth of the device by inserting a small shunt inductance in series with the load without sacrificing the device output photocurrent and linearity to a large extent.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128235768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Auger transitions and their signatures in III-nitride LEDs: A full-band modeling iii -氮化物led中的俄歇跃迁及其特征:全波段建模
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935330
F. Bertazzi, Xiangyu Zhou, M. Goano, G. Ghione, E. Bellotti
{"title":"Auger transitions and their signatures in III-nitride LEDs: A full-band modeling","authors":"F. Bertazzi, Xiangyu Zhou, M. Goano, G. Ghione, E. Bellotti","doi":"10.1109/NUSOD.2014.6935330","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935330","url":null,"abstract":"Auger recombination and the relaxation of the resulting excited electrons are investigated in III-nitride light-emitting diodes (LEDs) with a full-band Monte Carlo carrier transport model to assess the possibility of recovering Auger signatures from experiments. Full-Brillouin-zone calculations of Auger coefficients indicate that Auger recombination may not be negligible for LED operation, although the identification of Auger signatures from complex experiments should be supported by theoretical calculations before any claim concerning the origin of the efficiency droop can be made.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133281745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Model for a semiconductor quantum-dot nanolaser 半导体量子点纳米激光器模型
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935328
W. Chow, F. Jahnke, C. Gies
{"title":"Model for a semiconductor quantum-dot nanolaser","authors":"W. Chow, F. Jahnke, C. Gies","doi":"10.1109/NUSOD.2014.6935328","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935328","url":null,"abstract":"A quantum-electrodynamics model is developed for a nanolaser with a semiconductor quantum-dot gain region. Intensity, coherence time and photon autocorrelation function are calculated, especially during transition from below to above lasing threshold.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115400722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiple-level grating used for nanostructured thin film solar cells 用于纳米结构薄膜太阳能电池的多层光栅
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935369
Chuanhong Liu, Zhaoyu Zhang
{"title":"Multiple-level grating used for nanostructured thin film solar cells","authors":"Chuanhong Liu, Zhaoyu Zhang","doi":"10.1109/NUSOD.2014.6935369","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935369","url":null,"abstract":"Surface recombination plays a key role in hign efficiency nanostructured thin film solar cells. How to reduce the recombination in a nanostructured cell or further increase absorption without increase of surface recombination is meaningful in solar cell design. We further increases light absorption without increase of surface recombination, and the extra light absorption contribute to the device efficiency. This concept of multiple-level grating shows significant importance in effective nanostructure light trapping.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128980064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Strong and broadband circular dichroism based on helix-like chiral metamaterials 基于螺旋状手性超材料的强宽带圆二色性
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935397
Shaowei Wang, Ruonan Ji, Xiaoshuang Chen, W. Lu
{"title":"Strong and broadband circular dichroism based on helix-like chiral metamaterials","authors":"Shaowei Wang, Ruonan Ji, Xiaoshuang Chen, W. Lu","doi":"10.1109/NUSOD.2014.6935397","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935397","url":null,"abstract":"In this paper, a helix-like chiral metamaterials, which can be realized with multiple electron beam lithography, has been proposed to achieve strong and broadband circular dichroism. A preferential transmission of right-handed polarized waves spanning over a wavelength range of above 5 μm is realized owning to the combined effects of internal and Bragg resonance.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129947398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid core semiconductor nanowires for solar cell applications 应用于太阳能电池的混合芯半导体纳米线
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935370
M. Hussein, N. Areed, M. Hameed, S. Obayya
{"title":"Hybrid core semiconductor nanowires for solar cell applications","authors":"M. Hussein, N. Areed, M. Hameed, S. Obayya","doi":"10.1109/NUSOD.2014.6935370","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935370","url":null,"abstract":"In this study, novel design of semiconductor nano-wires in decagonal lattice with hybrid core is proposed and simulated using 3D finite difference time domain method. The hybrid core has gold/silicon combination to increase the light absorption and hence the ultimate efficiency. The reported NWs solar cell achieves broadband absorption in long wavelength region with excellent absorption (>95%) in short wavelength regime. The proposed structure with hybrid core shows an ultimate efficiency of 32.62 % which is higher than that of silicon core design by 19.7%.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124535459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Hybrid FDTD modeling of a two-level atomic system 两能级原子系统的混合时域有限差分建模
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935367
B. Salski
{"title":"Hybrid FDTD modeling of a two-level atomic system","authors":"B. Salski","doi":"10.1109/NUSOD.2014.6935367","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935367","url":null,"abstract":"The new concept of coupling rate equations, describing the evolution of a two-level atomic system, with rigorous electromagnetic simulations undertaken with a finite-difference time-domain method is presented. The proposed procedure allows updating electromagnetic fields and population densities with different time-scales, which leads to the significant reduction of computational effort of the analysis of absorbing materials.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127351726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Simulation of nonlinear optical resonator circuits 非线性光谐振电路的仿真
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-27 DOI: 10.1109/NUSOD.2014.6935377
T. Van Vaerenbergh, M. Fiers, P. Bienstman, J. Dambre
{"title":"Simulation of nonlinear optical resonator circuits","authors":"T. Van Vaerenbergh, M. Fiers, P. Bienstman, J. Dambre","doi":"10.1109/NUSOD.2014.6935377","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935377","url":null,"abstract":"Recently, we proposed a node-based framework to model large circuits of nonlinear photonic components. This flexible tool can be used to simulate circuits that contain a variety of components both in time-domain and in frequency-domain. In this paper, we extend the node-definition of this framework such that that the linear coupling between access waveguides and resonance states in optical resonators can be more efficiently incorporated. We demonstrate that this results in an important decrease of the simulation time in large circuits of nonlinear photonic cavities.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"348 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126680662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of light trapping nanopatterned solar cells based on three-dimensional optical and electrical modeling 基于三维光学和电学建模的光捕获纳米图案太阳能电池设计
Numerical Simulation of Optoelectronic Devices, 2014 Pub Date : 2014-10-23 DOI: 10.1109/NUSOD.2014.6935404
H. Hsiao, Hung-chun Chang, Yuh‐Renn Wu
{"title":"Design of light trapping nanopatterned solar cells based on three-dimensional optical and electrical modeling","authors":"H. Hsiao, Hung-chun Chang, Yuh‐Renn Wu","doi":"10.1109/NUSOD.2014.6935404","DOIUrl":"https://doi.org/10.1109/NUSOD.2014.6935404","url":null,"abstract":"The optical and electrical properties of a new type photonic-plasmonic nanostructure on the back contact of solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain (FDTD) method and the Poisson and drift-diffusion (DDCC) solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. In addition, the surface topography of the nanopattern has a strong effect on the device physics such as the potential and recombination profiles, and therefore influencing the electrode collecting efficiency of the photocurrents.","PeriodicalId":114800,"journal":{"name":"Numerical Simulation of Optoelectronic Devices, 2014","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116400472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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