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Retraction Note: Neuro quantum computing based optoelectronic artificial intelligence in electroencephalogram signal analysis 撤稿说明:基于神经量子计算的光电人工智能在脑电信号分析中的应用
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-19 DOI: 10.1007/s11082-024-07914-2
M. Sangeetha, P. Senthil, Adel H. Alshehri, Shamimul Qamar, Hashim Elshafie, V. P. Kavitha
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引用次数: 0
Retraction Note: Diagnosing osteoporosis using deep neural networkassisted optical image processing method 撤稿说明:利用深度神经网络辅助光学图像处理方法诊断骨质疏松症
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-19 DOI: 10.1007/s11082-024-07835-0
Mahmud Uz Zaman, Mohammad Khursheed Alam, Nasser Raqe Alqhtani, Ali Robaian, Abdullah Saad Alqahtani, Mana Alqahtani, Khaled M. Alzahrani, Fawaz Alqahtani
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引用次数: 0
Retraction Note: Composition statistics of gynecological microscopic images based on texture analysis and medical intelligence system 撤稿说明:基于纹理分析和医学智能系统的妇科显微图像合成统计
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-19 DOI: 10.1007/s11082-024-07882-7
Hui Li, Ying Yuan, Ping Zhou, Nina Bao, Zhaoxin Zhang, Xue Yang
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引用次数: 0
Retraction Note: Optical sensor based quantum computing in sports medicine for diagnosis and data analysis using machine learning model 撤稿说明:基于光学传感器的量子计算在运动医学中的应用,利用机器学习模型进行诊断和数据分析
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-19 DOI: 10.1007/s11082-024-07876-5
Wanghao Xu
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引用次数: 0
Retraction Note: Radar optical communication for analysing aerial targets with frequency bandwidth and clutter suppression by boundary element mmwave signal model 撤回说明:利用边界元毫米波信号模型分析具有频率带宽和杂波抑制功能的空中目标雷达光通信
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-19 DOI: 10.1007/s11082-024-07897-0
V. P. Kavitha, D. Prabakar, S Ranjith subramanian, S. Balambigai
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引用次数: 0
Retraction Note: A multi-step APT attack detection using hidden Markov models by molecular magnetic sensors 撤稿说明:分子磁传感器利用隐马尔可夫模型进行多步骤 APT 攻击检测
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-19 DOI: 10.1007/s11082-024-07884-5
U. Sakthivelu, C. N. S. Vinoth Kumar
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引用次数: 0
Optimized optical and morphological properties of thin MEH-PPV: PC71BM films deposited on glass substrates for photovoltaic applications 用于光伏应用的沉积在玻璃基板上的 MEH-PPV: PC71BM 薄膜的优化光学和形态特性
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-18 DOI: 10.1007/s11082-024-06524-2
Adonijah Anindo, Austine A. Mulama, Francis Otieno

Organic solar cells (OSCs) made of at least two electronically dissimilar molecules have attracted a lot of attention due to their low-cost solution manufacturing and color tunability. Bulk-heterojunction active layer usually achieved through spin-coating provide an appealing technique. These cells generate Frenkel excitons through photo-absorption in one molecule combined with acceptor resulting in the formation of free charge carriers that emerge after exciton dissociation at the donor–acceptor interface. These processes highly depend on optimization of the blend composition and deposition parameters such that we form an interpenetrating bi-continuous network with the domain sizes roughly twice of the exciton diffusion length. The choice of materials plays a major role in ensuring that sufficient energy offset at the donor/acceptor interface leads to an efficient charge separation. The study focused on probing a blend of poly [2-methoxy-5-(2’-ethylhexyloxy)-1, 4-phenylenevinylene (MEH-PPV) and fullerene derivatives of phenyl-C71-butyric acid methyl ester (PC71BM) forming a bulk heterojunction active layer. We investigate the optical and morphological properties of MEH-PPV: PC71BM spin-coated films at varied spin-coating parameters such as spin-rates and spin-step as well as blend properties including solution concentration, deposition techniques and donor–acceptor blend ratios. We related how deposition parameters affect the exciton quenching capabilities at donor–acceptor interface, film-surface homogeneity and light absorption in deposited films. From the optimized results obtained, deep photoluminescence quenching was observed for MEH-PPV doped with 75% PC71BM in addition to reduced optical band gap energy (1.88 eV), a signature of improved charge transfer rate and photon-absorption. The optimized MEH-PPV: PC71BM systems are possible candidates for photovoltaic applications especially in the production of thin organic photovoltaic solar cells.

有机太阳能电池(OSC)至少由两种电子异构分子构成,由于其低成本的溶液制造和色彩可调性而备受关注。通常通过旋涂实现的大块异质结活性层提供了一种极具吸引力的技术。这些电池通过一个分子与受体结合的光吸收产生弗伦克尔激子,从而形成自由电荷载流子,这些载流子在供体-受体界面激子解离后出现。这些过程在很大程度上取决于混合成分和沉积参数的优化,这样才能形成一个相互渗透的双连续网络,畴的大小大约是激子扩散长度的两倍。材料的选择在确保供体/受体界面有足够的能量偏移以实现高效电荷分离方面起着重要作用。本研究重点探究了聚[2-甲氧基-5-(2'-乙基己氧基)-1, 4-亚苯基乙烯(MEH-PPV)和苯基-C71-丁酸甲酯富勒烯衍生物(PC71BM)的混合物形成的体异质结活性层。我们研究了不同旋涂参数(如旋涂速率和旋涂步骤)下 MEH-PPV:PC71BM 旋涂薄膜的光学和形态特性,以及混合特性(包括溶液浓度、沉积技术和供体-受体混合比)。我们研究了沉积参数如何影响供体-受体界面的激子淬灭能力、薄膜表面均匀性和沉积薄膜的光吸收。从获得的优化结果来看,掺杂了 75% PC71BM 的 MEH-PPV 除了光带隙能降低(1.88 eV)之外,还出现了深度光致发光淬灭,这是电荷转移率和光吸收改善的标志。经过优化的 MEH-PPV:PC71BM 系统有可能应用于光伏领域,尤其是生产薄型有机光伏太阳能电池。
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引用次数: 0
Fabrication, structure, optical and gamma-ray attenuation properties of borotellurite glasses doped with variable concentrations of cadmium oxide 掺杂不同浓度氧化镉的硼碲玻璃的制造、结构、光学和伽马射线衰减特性
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-18 DOI: 10.1007/s11082-024-07120-0
Maryam Al Huwayz, A. M. Abdelghany, R. A. Elsad, Shaaban M. Shaaban, Y. S. Rammah, S. M. Kotb, S. Talaat, A. S. Abouhaswa

Glass samples of CdO doped bario-fluoride borotellurite with nominal compositions of (45-x)B2O3 + 30TeO2 + 15BaF2 + 10Li2O + xCdO and substitution ratios of x = 0.0 (Cd0.0), 0.5 (Cd0.5), 2.0 (Cd2.0), 4.0 (Cd4.0), and 7.0 (Cd7.0) mol% were synthesized using the well-known melt quenching process. The structure, physical, and optical characteristics of the prepared glasses have been investigated. The Phy-X/PSD software employed to evaluate the radiation attenuation competence of the prepared glasses. The XRD analysis confirmed that the Cd-0.0/Cd-7.0 samples were in amorphous nature. Density (ρ) varied from 3.8633 g/cm3 for Cd-0.0 sample to 4.2894 g/cm3 for Cd-7.0 sample. The molar volume (Vm) varied from 28.08 cm3/mol to 26.25 cm3/mol. The inclusion of CdO in the glasses network reduced the direct band gaps from 3.54 eV to 3.196 eV and the indirect band gaps from 3.23 eV to 2.85 eV, respectively. Urbach’s energy changed from 0.23 eV to 0.318 eV and refractive index (n) ranged between 2.333 and 2.439. Mass-absorption coefficient (MAC) values ranged between 30.696 − 0.032 cm2/g, 30.825–0.032 cm2/g, 31.210–0.032 cm2/g, 31.714–0.033 cm2/g and 32.450–0.033 cm2/g, for Cd0.0, Cd0.5, Cd2.0, Cd4.0, and Cd7.0 glass samples, respectively. Sample coded as Cd7.0 possessed the minimum half value layer (HVL) which ranged from 0.005 cm to 4.887 cm at photon energy 0.015 and 15 MeV, respectively. The effective atomic number (Zeff) and effective ion density (Neff) possessed the same trend of MAC parameter. Results confirmed that the present glasses are superior as γ-ray shields compared to other commercial materials.

标称成分为 (45-x)B2O3 + 30TeO2 + 15BaF2 + 10Li2O + xCdO 的掺杂 CdO 的重晶硼碲玻璃样品,其替代比为 x = 0.采用著名的熔体淬火工艺合成了 0 (Cd0.0)、0.5 (Cd0.5)、2.0 (Cd2.0)、4.0 (Cd4.0) 和 7.0 (Cd7.0) mol%。研究了所制备玻璃的结构、物理和光学特性。利用 Phy-X/PSD 软件评估了所制备玻璃的辐射衰减能力。XRD 分析证实,Cd-0.0/Cd-7.0 样品为非晶态。密度(ρ)从 Cd-0.0 样品的 3.8633 克/立方厘米到 Cd-7.0 样品的 4.2894 克/立方厘米不等。摩尔体积 (Vm) 从 28.08 cm3/mol 到 26.25 cm3/mol 不等。在玻璃网络中加入氧化镉后,直接带隙从 3.54 eV 减小到 3.196 eV,间接带隙从 3.23 eV 减小到 2.85 eV。厄巴赫能从 0.23 eV 变为 0.318 eV,折射率 (n) 介于 2.333 和 2.439 之间。Cd0.0、Cd0.5、Cd2.0、Cd4.0 和 Cd7.0 玻璃样品的质量吸收系数(MAC)值分别介于 30.696 - 0.032 cm2/g、30.825-0.032 cm2/g、31.210-0.032 cm2/g、31.714-0.033 cm2/g 和 32.450-0.033 cm2/g 之间。在光子能量为 0.015 和 15 MeV 时,编码为 Cd7.0 的样品具有最小半值层(HVL),其范围分别为 0.005 cm 至 4.887 cm。有效原子数(Zeff)和有效离子密度(Neff)与 MAC 参数的变化趋势相同。结果证实,与其他商用材料相比,本玻璃具有更优越的γ射线屏蔽性能。
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引用次数: 0
All inorganic CsSnI3-based perovskite solar cells: design and comprehensive optimization by SCAPS simulation and DFT study 基于 CsSnI3 的全无机包晶太阳能电池:通过 SCAPS 仿真和 DFT 研究进行设计和全面优化
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-18 DOI: 10.1007/s11082-024-06628-9
Yongqi Liu, Xin Zhang, Cheng Zhang, Biao Wu, Maoliang Wu, Jiang Wu, Zaiguo Fu, Xinxia Ma, Yongfeng Qi, Wenhao Li

Traditional lead-based solar cells are not easy to commercialize on a large scale due to their toxicity and instability to the environment and the human body. Tin-based perovskites have received widespread attention from scholars since they were discovered to have potential as absorber layers in perovskite solar cells. However, compared with lead-based perovskite solar cells (PSCs), tin-based perovskite solar cells as the absorber layer have lower power conversion efficiency. In addition, the most popular hole transport layer material is Spiro-OMeTAD, which is an expensive and poor stability organic material, which limits the development of PSC. To overcome the above issues, this work made a comprehensive optimization of the device structure by using SCAPS-1D software, and finally designed a high-performance all-inorganic CsSnI3-based PSC. In addition, the electrical properties of the absorber layer are investigated by first-principles. Different from the traditional point-by-point optimization, this work adopts the two-factor dynamic optimization method, and the optimized power conversion efficiency is 30.58%, and the fill factor is 70.73%. This study demonstrates the potential of CsSnI3 as an absorber layer of high-performance PSCs and provides guidance for future research on all-inorganic perovskite solar cells.

传统的铅基太阳能电池因其对环境和人体的毒性和不稳定性而难以大规模商业化。自从发现锡基过氧化物具有作为过氧化物太阳能电池吸收层的潜力后,锡基过氧化物受到了学者们的广泛关注。然而,与铅基透辉石太阳能电池相比,作为吸收层的锡基透辉石太阳能电池的功率转换效率较低。此外,目前最流行的空穴传输层材料是斯派罗-OMeTAD,这是一种价格昂贵且稳定性差的有机材料,限制了 PSC 的发展。为了克服上述问题,本研究利用 SCAPS-1D 软件对器件结构进行了全面优化,最终设计出了一种基于 CsSnI3 的高性能全无机 PSC。此外,还利用第一性原理研究了吸收层的电学特性。与传统的逐点优化不同,本研究采用了双因素动态优化方法,优化后的功率转换效率为 30.58%,填充因子为 70.73%。该研究证明了 CsSnI3 作为高性能 PSCs 吸收层的潜力,并为未来全无机包晶太阳能电池的研究提供了指导。
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引用次数: 0
DFT calculations of pressure effects on structural stability, optoelectronic and thermoelectric properties of SrZrO3 DFT 计算压力对 SrZrO3 结构稳定性、光电和热电特性的影响
IF 3.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-06495-4
Muhammad Rizwan, Hafiz Muhammad Naeem Ullah, Syed Shahbaz Ali, Uzma Hira, Hamza Naeem, Zahid Usman

The mechanical stability, band gap enhancement, optical response and impact of pressure on thermoelectric figure of merit are considered vital parameters from thermoelectric device’s perspective based on SrZrO3 (SZO). The knowledge of elastic constant expressed structural stability of SZO (cubic symmetry) even at elevated pressures. Cauchy’s pressure and Poisson’s ratios demonstrated brittle behavior of SZO till 10 GPa, and it transformed to ductile material for higher pressures. The topology of electronic band structure and its pressure effects are discussed with the help of density of states. Optical properties expressed significant shifting to higher energy values as a function of pressure. Seebeck coefficient and electrical conductivity showed an increasing trend with the application of external pressure, with no significant change in their graphical behavior from its ambient conditions. The lowest value of ZT is obtained at 40 GPa. The structural stability and sustained thermoelectric behavior at higher pressure declares SZO as ideal candidate for energy applications at extreme conditions.

从基于 SrZrO3(SZO)的热电设备的角度来看,机械稳定性、带隙增强、光学响应和压力对热电特性的影响被认为是至关重要的参数。对弹性常数的了解表明,即使在高压下,SZO(立方对称)的结构也是稳定的。考奇压力和泊松比表明,SZO 在 10 GPa 以下为脆性材料,在更高压力下则转变为韧性材料。在状态密度的帮助下讨论了电子带结构拓扑及其压力效应。随着压力的变化,光学特性明显向高能量值转移。塞贝克系数和电导率随着外部压力的施加呈上升趋势,与环境条件相比,它们的图形行为没有明显变化。ZT 的最低值出现在 40 GPa 时。SZO 在较高压力下的结构稳定性和持续热电行为表明,它是极端条件下能源应用的理想候选材料。
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引用次数: 0
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Optical and Quantum Electronics
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