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Methods of dislocation structure characterization in A IIIB V semiconductor single crystals 半导体单晶中位错结构的表征方法
Pub Date : 2022-12-19 DOI: 10.3897/j.moem.8.4.99385
S. Knyazev, A. V. Kudrya, N. Y. Komarovskiy, Y. Parkhomenko, E. V. Molodtsova, Vyacheslav V. Yushchuk
The development pace of advanced electronics raises the demand for semiconductor single crystals and strengthens the requirements to their structural perfection. Dislocation density and distribution pattern are most important parameters of semiconductor single crystals which determine their performance as integrated circuit components. Therefore studies of the mechanisms of dislocation nucleation, slip and distribution are among the most important tasks which make researchers face the choice of suitable analytical methods. This work is an overview of advanced methods of studying and evaluating dislocation density in single crystals. Brief insight has been given on the main advantages and drawbacks of the methods overviewed and experimental data have been presented. The selective etching method (optical light microscopy) has become the most widely used one and in its conventional setup is quite efficient in the identification of scrap defects and in dislocation density evaluation by number of etch pits per vision area. Since the introduction of digital light microscopy and the related transfer from image analysis to pixel intensity matrices and measurement automation, it has become possible to implement quantitative characterization for the entire cross-section of single crystal wafers and analyze structural imperfection distribution pattern. X-ray diffraction is conventionally used for determination of crystallographic orientation but it also allows evaluating dislocation density by rocking curve broadening in double-crystal setup. Secondary electron scanning electron microscopy and atomic force microscopy allow differentiating etch patterns by origin and studying their geometry in detail. Transmission electron microscopy and induced current method allow obtaining micrographs of discrete dislocations but require labor-consuming preparation of experimental specimens. X-ray topography allows measuring bulky samples and also has high resolution but is hardly suitable for industry-wide application due to the high power consumption of measurements. Digital image processing broadens the applicability range of basic dislocation structure analytical methods in materials science and increases the authenticity of experimental results.
随着先进电子技术的发展,对半导体单晶的需求越来越大,对其结构完善的要求也越来越高。位错密度和分布模式是决定半导体单晶作为集成电路元件性能的重要参数。因此,研究位错成核、滑移和分布的机理是研究人员面临的一个重要问题,即选择合适的分析方法。本文综述了研究和评价单晶中位错密度的先进方法。简要介绍了所述方法的主要优点和缺点,并给出了实验数据。选择性蚀刻方法(光学光学显微镜)已成为应用最广泛的一种方法,其传统设置在识别废钢缺陷和根据每个视觉区域的蚀刻坑数评估位错密度方面是非常有效的。由于数字光学显微镜的引入以及从图像分析到像素强度矩阵和测量自动化的相关转移,对单晶片的整个横截面进行定量表征和分析结构缺陷分布模式已经成为可能。x射线衍射通常用于确定晶体取向,但它也允许通过双晶设置中的摇摆曲线展宽来评估位错密度。二次电子扫描电子显微镜和原子力显微镜允许区分蚀刻模式的起源和研究他们的几何细节。透射电子显微镜和感应电流法可以获得离散位错的显微照片,但需要费力地制备实验标本。x射线形貌允许测量大体积样品,也具有高分辨率,但由于测量的高功耗,几乎不适合工业范围的应用。数字图像处理拓宽了基本位错结构分析方法在材料科学中的适用范围,提高了实验结果的真实性。
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引用次数: 1
Metamaterial-based terahertz converter 基于超材料的太赫兹变换器
Pub Date : 2022-12-19 DOI: 10.3897/j.moem.8.4.98919
A. V. Sabluk, A. Basharin
Since the early 1980s the terahertz range (0.1 to 10 THz) attracts permanent attention of fundamental and applied science. Due to its unique properties terahertz radiation is used in a wide range of applications such as spectroscopy, non-destructive defectoscopy and security systems. The design of high-efficiency terahertz absorbers and converters is currently the main task in the development of terahertz technologies. In this work a frequency selective high-Q metamaterial is used for the fabrication of a terahertz-to-infrared converter. The converter consists of a metamaterial-based terahertz absorber coated with a micrometer-thick graphite layer that reemits the absorbed energy in the infrared range. We have carried out electrodynamic and the related thermodynamic calculations of the suggested radiation converter. Numerical simulations yield an electromagnetic radiation absorption coefficient of 99.998% and an analytically calculated converter efficiency of 93.8%. Thanks to these advanced parameters suggested terahertz converter can find it’s applications in a wide range of transportation security inspection and defectoscopy tasks.
自20世纪80年代初以来,太赫兹范围(0.1至10太赫兹)一直受到基础科学和应用科学的关注。由于其独特的特性,太赫兹辐射被广泛应用于光谱学、无损缺陷检查和安全系统等领域。设计高效的太赫兹吸收器和转换器是目前太赫兹技术发展的主要任务。在这项工作中,频率选择性高q超材料被用于制造太赫兹-红外转换器。转换器由一个超材料基的太赫兹吸收器组成,该吸收器涂有一层微米厚的石墨层,可以在红外范围内重新发射吸收的能量。我们对所建议的辐射变换器进行了电动力学和相关的热力学计算。数值模拟结果表明,电磁辐射吸收系数为99.998%,解析计算的变换器效率为93.8%。由于这些先进的参数,建议太赫兹变换器可以在广泛的运输安全检查和缺陷检查任务中找到它的应用。
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引用次数: 1
Improved technology of frequency-selective UHF electromagnetic shields containing helical elements 含螺旋元件的超高频选频电磁屏蔽改进技术
Pub Date : 2022-12-19 DOI: 10.3897/j.moem.8.4.100653
O. Boiprav, Natalia V. Bogush
An improved technology of frequency-selective electromagnetic shields has been considered. The technology has been improved by embedding classic Archimedean helical elements made from foiled materials into the bulk of the shields for the improvement of the frequency-selective performance of the shields and pinning of these elements in the bulk of the shields by means of fusion bonding. These design features provide for the main advantage of the improved technology in comparison with counterparts, i.e., lower time consumption. The technology has been improved in the following two aspects: 1) identification of helical element parameters providing for the greatest energy loss of the UHF electromagnetic radiation interacting with the helical elements; 2) identification of the optimum helical element arrangement in the shield bulk providing for the smallest transmission and reflection coefficient of the UHF electromagnetic radiation by the shields. Technology improvement in accordance with the former of the above aspects has been achieved based on analysis of publications dealing with mathematical simulation and study of the parameters of UHF electromagnetic radiation transmission by planar helical antennas. Technology improvement in accordance with the latter aspect has been achieved based on experimental data. Test shields have been fabricated with specifically arranged embedded helical elements, and comparison has been made between the UHF electromagnetic radiation transmission and reflection coefficients of the shields. Shields fabricated in accordance with the improved technology suggested herein show good promise for the electromagnetic noise protection of electronic devices.
提出了一种改进的频率选择电磁屏蔽技术。该技术已得到改进,通过将由箔材料制成的经典阿基米德螺旋元件嵌入到屏蔽体中,以改善屏蔽体的频率选择性能,并通过融合键将这些元件固定在屏蔽体中。与同类产品相比,这些设计特征提供了改进技术的主要优势,即更低的时间消耗。该技术在以下两个方面得到了改进:1)识别螺旋元件参数,使特高频电磁辐射与螺旋元件相互作用时能量损失最大;2)确定屏蔽体中螺旋元件的最佳排列方式,使屏蔽体对超高频电磁辐射的透射和反射系数最小。通过对平面螺旋天线传输超高频电磁辐射的数学模拟和参数研究文献的分析,实现了上述两方面的技术改进。根据实验数据,对后一个方面进行了技术改进。采用特殊布置的嵌入式螺旋元件制作了测试屏蔽体,并对屏蔽体的超高频电磁辐射透射系数和反射系数进行了比较。根据本文提出的改进工艺制作的屏蔽在电子器件的电磁噪声防护方面具有良好的应用前景。
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引用次数: 1
Stress-Relaxed AlN-Buffer-Oriented GaN-Nano-Obelisks-Based High-Performance UV Photodetector 应力松弛aln缓冲导向gan纳米方尖碑型高性能紫外光电探测器
Pub Date : 2022-12-09 DOI: 10.3390/electronicmat3040029
Pargam Vashishtha, Pukhraj Prajapat, Lalit N. Goswami, Aditya V. Yadav, A. Pandey, G. Gupta
Epitaxial GaN nanostructures are developed, and the influence of the AlN buffer layer (temperature modulation) on material characteristics and optoelectronic device application is assessed. The AlN buffer layer was grown on a Si (111) substrate at varying temperatures (770–830 °C), followed by GaN growth using plasma-assisted molecular beam epitaxy. The investigation revealed that the comparatively lower temperature AlN buffer layer was responsible for stress and lattice strain relaxation and was realized as the GaN nano-obelisk structures. Contrarily, the increased temperature of the AlN growth led to the formation of GaN nanopyramidal and nanowax/wane structures. These grown GaN/AlN/Si heterostructures were utilized to develop photodetectors in a metal–semiconductor–metal geometry format. The performance of these fabricated optoelectronic devices was examined under ultraviolet illumination (UVA), where the GaN nano-obelisks-based device attained the highest responsivity of 118 AW−1. Under UVA (325 nm) illumination, the designed device exhibited a high detectivity of 1 × 1010 Jones, noise equivalent power of 1 × 10−12 WHz−1/2, and external quantum efficiency of 45,000%. The analysis revealed that the quality of the AlN buffer layer significantly improved the optoelectronic performance of the device.
开发了外延GaN纳米结构,并评估了AlN缓冲层(温度调制)对材料特性和光电子器件应用的影响。在不同温度(770-830℃)下,在Si(111)衬底上生长AlN缓冲层,然后使用等离子体辅助分子束外延生长GaN。研究表明,相对低温的AlN缓冲层负责应力松弛和晶格应变松弛,并实现GaN纳米方尖碑结构。相反,AlN生长温度的升高导致GaN纳米锥体结构和纳米蜡/衰减结构的形成。这些生长的GaN/AlN/Si异质结构被用于开发金属-半导体-金属几何格式的光电探测器。在紫外线照射下测试了这些制备的光电器件的性能,其中基于GaN纳米方尖碑的器件达到了最高的响应度,为118 AW−1。在UVA (325 nm)光照下,该器件的检出率为1 × 1010 Jones,噪声等效功率为1 × 10−12 WHz−1/2,外量子效率为45000%。分析表明,AlN缓冲层的质量显著提高了器件的光电性能。
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引用次数: 16
Indirect Evaluation of the Electrocaloric Effect in PbZrTiO3 (20/80)-Based Epitaxial Thin Film Structures PbZrTiO3(20/80)基外延薄膜结构中电热效应的间接评价
Pub Date : 2022-11-01 DOI: 10.3390/electronicmat3040028
G. Boni, L. Filip, C. Radu, C. Chirila, I. Pasuk, M. Botea, I. Pintilie, L. Pintilie
Electrocaloric effect is the adiabatic temperature change in a dielectric material when an electric field is applied or removed, and it can be considered as an alternative refrigeration method. Materials with ferroelectric order exhibit large temperature variations in the vicinity of a phase transition, while antiferroelectrics and relaxors may exhibit a negative electrocaloric effect. In this study, the temperature variation in polarization was investigated for epitaxial ferroelectric thin film structures based on PbZrTiO3 materials in simple or complex multilayered structures. We propose the intriguing possibility of a giant negative electrocaloric effect (ΔT = −3.7 K at room temperature and ΔT = −5.5 K at 370 K) in a simple epitaxial Pb(ZrTi)O3 capacitor. Furthermore, it was shown that abnormal temperature variation in polarization is dependent on the non-FE component introduced in a multilayered structure. No significant variation in polarization with temperature was obtained for PZT/STON multilayered structures around room temperature. However, for PZT/BST or PZT/Nb2O5 multilayers, an abnormal temperature variation in polarization was revealed, which was similar to a simple PZT layer. The giant and negative ∆T values were attributed to internal fields and defects formed due to the large depolarization fields when the high polarization of the FE component was not fully compensated either by the electrodes or by the interface with an insulator layer. The presented results make Pb(ZrTi)O3-based structures promising for cooling applications operating near room temperature.
电热效应是施加或去除电场时介电材料的绝热温度变化,它可以被认为是一种替代的制冷方法。具有铁电序的材料在相变附近表现出较大的温度变化,而反铁电体和弛豫体可能表现出负的电热效应。在本研究中,研究了基于PbZrTiO3材料的外延铁电薄膜结构在简单和复杂多层结构中的极化温度变化。我们提出了在简单的外延Pb(ZrTi)O3电容器中产生巨大负电热效应(在室温下ΔT =−3.7 K,在370 K下ΔT =−5.5 K)的有趣可能性。此外,研究还表明,极化的异常温度变化与多层结构中引入的非fe分量有关。在室温附近,PZT/STON多层结构的极化随温度变化不显著。然而,对于PZT/BST或PZT/Nb2O5多层膜,极化温度变化异常,类似于简单的PZT层。巨大的∆T值和负的∆T值是由于内部场和大去极化场造成的,当FE组件的高极化没有被电极或与绝缘子层的界面完全补偿时。这些结果使得Pb(ZrTi) o3基结构在室温下的冷却应用前景广阔。
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引用次数: 0
Effect of Carrier Gas Flow Rates on the Structural and Optical Properties of ZnO Films Deposited Using an Aerosol Deposition Technique 载气流速对气溶胶沉积技术沉积ZnO薄膜结构和光学性能的影响
Pub Date : 2022-10-31 DOI: 10.3390/electronicmat3040027
M. Z. Toe, W. K. Tan, H. Muto, G. Kawamura, A. Matsuda, K. A. Yaacob, S. Pung
Aerosol deposition (AD) is a simple, dry raw-powder deposition process in which the targeted film is formed by direct bombardment of accelerated starting powder onto the substrate surface at room temperature. Despite the increased interest in AD film formation, no work has been completed to systematically investigate the formation of dense zinc oxide (ZnO) films using the AD method and their optical properties. Therefore, this study was carried out to investigate the effect of AD gas flow rate on the formation of AD films and the optical properties of aerosol-deposited ZnO films. ZnO films with nanosized (<40 nm) crystallites were successfully deposited on FTO substrates at room temperature. A dense and uniform layer of aerosol-deposited ZnO films with a roughened surface was obtained without subsequent heat treatment. With the increase in the AD gas flow rate, the crystal size and the AD film’s thickness were reduced. The Raman spectroscopy verified that the thin film was of a ZnO wurtzite structure. The room temperature photoluminescence of the ZnO thin film produced strong visible emissions. The findings of this work demonstrated that AD can be an alternative technique for the rapid deposition of dense and thick ZnO films for optoelectronic applications.
气溶胶沉积(AD)是一种简单、干燥的生粉沉积工艺,在室温下将加速的起始粉末直接轰击到基材表面,形成目标薄膜。尽管人们对AD膜的形成越来越感兴趣,但还没有系统地研究使用AD方法形成致密氧化锌(ZnO)薄膜及其光学性质的工作。因此,本研究旨在探讨AD气体流速对AD膜形成及气溶胶沉积ZnO薄膜光学性能的影响。在室温下,成功地在FTO衬底上沉积了纳米级(<40 nm) ZnO薄膜。在没有后续热处理的情况下,获得了一层致密均匀且表面粗糙的气溶胶沉积ZnO薄膜。随着气体流量的增加,晶体尺寸减小,膜厚度减小。拉曼光谱证实薄膜为氧化锌纤锌矿结构。ZnO薄膜的室温光致发光产生强烈的可见光发射。这项工作的发现表明,在光电应用中,快速沉积致密和厚的ZnO薄膜可以是一种替代技术。
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引用次数: 3
Effect of vacuum sintering conditions on the properties of Y3Al5O12 : Ce luminescent ceramics 真空烧结条件对Y3Al5O12: Ce发光陶瓷性能的影响
Pub Date : 2022-10-20 DOI: 10.3897/j.moem.8.3.98706
L. V. Tarala, A. Kravtsov, O. Chapura, V. Tarala, D. Vakalov, F. Malyavin, S. Kuznetsov, V. Lapin, L. Kozhitov, A. Popkova
The aim of this work was to study the effect of vacuum sintering conditions and cerium concentration on the optical, luminescent and thermal properties of yttrium-aluminum garnet based ceramics doped with Се3+ cations. Series of ceramic powders were synthesized and samples of luminescent ceramics having the composition Y3-хСехAl5O12 were synthesized where x was in the range 0.01 to 0.025 f.u. We show that the phase composition and grain size distribution of the ceramic powders do not depend on cerium concentration. Without sintering additives, an increase in vacuum sintering temperature from 1675 to 1800 °C leads to an increase in the optical transmittance of luminescent ceramic specimens from 5 to 55% at a 540 nm wavelength and an increase in the thermal conductivity of the samples from 8.4 to 9.5 W/(m ∙ K). It was found that an increase in cerium concentration leads to a shift of the luminescent band peak from 535 to 545 nm where as the width of the luminescent band decreases with an increase in vacuum sintering temperature from 1675 to 1725 °C.
研究了真空烧结条件和铈浓度对掺杂Се3+阳离子的钇铝石榴石基陶瓷光学、发光和热性能的影响。在x为0.01 ~ 0.025 f.u范围内,合成了一系列陶瓷粉末,并合成了成分为Y3-хСехAl5O12的发光陶瓷样品。结果表明,陶瓷粉末的相组成和粒度分布与铈浓度无关。无烧结添加剂;真空烧结温度的增加,从1675年到1800°C会导致发光陶瓷的光学透过率的增加5 - 55%的标本在540 nm波长和增加样品的导热系数从8.4到9.5 W / (m∙K)。发现铈浓度的增加会导致发光带的转变峰从535年到545海里而发光带的宽度随真空烧结温度的增加而减小1675 ~ 1725°C。
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引用次数: 0
A study on the optical properties and optoelectronic parameters of Sudan dye doped poly(5-hydroxy-L-tryptophane) and P(TER-CO-TRI) polymers 苏丹红染料掺杂聚(5-羟基- l -色氨酸)和P(TER-CO-TRI)聚合物的光学性质和光电子参数研究
Pub Date : 2022-10-14 DOI: 10.3897/j.moem.8.3.91521
Barham K. Rahim, F. Muhammadsharif, S. Saeed, Kamal A. Ketuly
In this paper, the optical properties and optoelectronic parameters of two newly synthesized polymers forming a donor : acceptor (D : A) binary system are investigated, followed by their subsequent doping with Sudan dye to obtain a ternary system. The donor polymer is P(TER-CO-TRI), while the acceptor is poly(5-hydroxy-L-Tryptophane). A cost-effective solution-processing was carried out to obtain different binary and ternary composites with concentration of 0.5 mg/ml. Optical absorption spectroscopy was used to measure the optical response and optoelectronic parameters, while FTIR and cyclic voltammetry were used to assess the structure and molecular energy levels of the polymers. The results revealed that the non-dispersive refractive index and energy gap of binary D : A was decreased from 1.56 to 1.52 eV and from 2.84 to 2.10 eV, respectively, when it was doped with Sudan dye. It was concluded that with the help of doping process, different values of energy band gap, refractive index, dielectric constant, and optical conductivity are achieved. This tuning achievement of the optoelectronic parameters is crucial in determining the possible applications of these materials in the organic electronics, photodiodes and photovoltaic devices.
本文研究了两种新合成的聚合物的光学性质和光电子参数,形成了一个供体:受体(D: a)二元体系,然后用苏丹红染料掺杂得到了一个三元体系。给体聚合物为P(TER-CO-TRI),受体为聚(5-羟基- l -色氨酸)。采用高性价比的溶液处理方法,得到浓度为0.5 mg/ml的二、三元复合材料。采用光吸收光谱法测量聚合物的光学响应和光电子参数,采用FTIR和循环伏安法评估聚合物的结构和分子能级。结果表明,掺杂苏丹红染料后,二元D: A的非色散折射率和能隙分别从1.56 eV和2.84 eV降低到1.52 eV和2.10 eV。结果表明,在掺杂过程的帮助下,可以获得不同的能带隙、折射率、介电常数和光电导率。这一光电参数的调谐成就对于确定这些材料在有机电子、光电二极管和光伏器件中的可能应用至关重要。
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引用次数: 1
Deep refinement of tellurium: equipment and process improvement through process simulation 碲的深度细化:通过过程模拟对设备和工艺进行改进
Pub Date : 2022-10-14 DOI: 10.3897/j.moem.8.3.97596
V. N. Abryutin, I. I. Maronchuk, N. A. Potolokov, D. Sanikovich, N. Cherkashina
Simulation data have been presented on a process of deep refinement of tellurium based on Authors-developed refinement technique implemented through analysis of the process unit thermodynamical condition using Flow Simulation software, from SolidWorks software product. The technique put forward herein has been implemented in a plant comprising a vertical air-tight reaction chamber arranged inside a multi-zone thermal unit and executing a sequence of refinement stages which use different techniques and are integrated in a single process. The experimental data which have been the basis for calculations have allowed one to determine the boundary conditions of the mathematical model taking into account previous operation experience of the software product used. Temperature profile calculation has been carried out taking into account all the types of heat transfer in the system, the weight / dimensions parameters of system units and the physicochemical properties of refined tellurium, materials of equipment fittings and reactor media. The temperature modes of the process stages have been accepted as the boundary conditions for the thermal calculations, with temperatures being measured at equipment fitting locations at which temperature gages connected with a PID controller have been installed. The simulation of specific refinement process conditions allowed process modes and equipment fitting component design to be corrected. We have developed and produced test models of process and imitation equipment. Analysis of the thermal fields for the final model has shown good agreement with the mathematical model. Equipment upgrading and process parameter improvement on the basis of the simulation results have allowed T-u Grade tellurium (99.95 wt.%) refinement to a 99.99992 wt.% purity by 30 main impurities in the course of physical experiments, the product yield being at least 60%.
利用SolidWorks软件中的Flow Simulation软件,通过对工艺单元热力学条件的分析,给出了基于作者开发的精化技术的碲深度精化过程的仿真数据。本文提出的技术已在一个装置中实现,该装置包括布置在多区热单元内的垂直气密反应室,并执行使用不同技术并集成在单一工艺中的一系列精制阶段。作为计算基础的实验数据使人们能够在考虑所用软件产品以前的操作经验的情况下确定数学模型的边界条件。温度分布计算考虑了系统中所有类型的传热、系统单元的重量/尺寸参数以及精制碲的物理化学性质、设备配件的材料和反应器介质。工艺阶段的温度模式已被接受为热计算的边界条件,在安装了带有PID控制器的温度表的设备安装位置测量温度。具体细化工艺条件的模拟允许工艺模式和设备配件设计得到纠正。我们开发和生产了工艺试验模型和模拟设备。最终模型的热场分析结果与数学模型吻合较好。在模拟结果的基础上进行设备升级和工艺参数改进,使T-u级碲(99.95 wt.%)在物理实验过程中通过30个主要杂质提纯到99.99992 wt.%的纯度,产品收率达到60%以上。
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引用次数: 1
Textile Materials for Wireless Energy Harvesting 用于无线能量收集的纺织材料
Pub Date : 2022-10-08 DOI: 10.3390/electronicmat3040026
Yusuke Yamada
Wireless energy harvesting, a technique to generate direct current (DC) electricity from ambient wireless signals, has recently been featured as a potential solution to reduce the battery size, extend the battery life, or replace batteries altogether for wearable electronics. Unlike other energy harvesting techniques, wireless energy harvesting has a prominent advantage of ceaseless availability of ambient signals, but the common form of technology involves a major challenge of limited output power because of a relatively low ambient energy density. Moreover, the archetypal wireless energy harvesters are made of printed circuit boards (PCBs), which are rigid, bulky, and heavy, and hence they are not eminently suitable for body-worn applications from both aesthetic and comfort points of view. In order to overcome these limitations, textile-based wireless energy harvesting architectures have been proposed in the past decade. Being made of textile materials, this new class of harvesters can be seamlessly integrated into clothing in inherently aesthetic and comfortable forms. In addition, since clothing offers a large surface area, multiple harvesting units can be deployed to enhance the output power. In view of these unique and irreplaceable benefits, this paper reviews key recent progress in textile-based wireless energy harvesting strategies for powering body-worn electronics. Comparisons with other power harvesting technologies, historical development, fundamental principles of operation and techniques for fabricating textile-based wireless power harvesters are first recapitulated, followed by a review on the principal advantages, challenges, and opportunities. It is one of the purposes of this paper to peruse the current state-of-the-art and build a scientific knowledge base to aid further advancement of power solutions for wearable electronics.
无线能量收集是一种利用环境无线信号产生直流电(DC)的技术,最近被认为是缩小电池尺寸、延长电池寿命或完全取代可穿戴电子产品电池的潜在解决方案。与其他能量收集技术不同,无线能量收集具有不断获取环境信号的突出优势,但由于相对较低的环境能量密度,该技术的常见形式涉及到有限输出功率的主要挑战。此外,无线能量采集器的原型是由印刷电路板(pcb)制成的,这些电路板刚性大,笨重,因此从美观和舒适的角度来看,它们不太适合身体穿戴的应用。为了克服这些限制,在过去的十年中,人们提出了基于纺织品的无线能量收集架构。这种新型收割机由纺织材料制成,可以以固有的美学和舒适的形式无缝地集成到服装中。此外,由于服装提供了一个大的表面积,多个收集单元可以部署,以提高输出功率。鉴于这些独特和不可替代的好处,本文综述了基于纺织品的无线能量收集策略的最新进展,该策略可为穿戴电子设备供电。本文首先概述了无线能量收集技术与其他能量收集技术的比较、历史发展、操作的基本原理和制造基于纺织品的无线能量收集技术的技术,然后对其主要优势、挑战和机遇进行了回顾。本文的目的之一是阅读当前最先进的技术并建立一个科学的知识库,以帮助进一步推进可穿戴电子产品的电源解决方案。
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引用次数: 2
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Modern Electronic Materials
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