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随着全球气候变暖、污染问题日益严重,从传统能源向可再生能源的转变势在必行。其中太阳能作为可再生能源的重要部分,最近几年已经得到了很广泛的应用。晶体硅太阳能电池是目前多种太阳能电池中技术最为成熟、光电转换效率最高、应用最为广泛的一种,目前国外单晶硅太阳能电池实验室转换效率最高已达到24.7%,多晶硅太阳能电池达到19.8%。本文就晶体硅太阳电池的应用及发展做一简要介绍。 相似文献
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非晶硅(a-Si)薄膜太阳能电池是取之不尽的洁净能源-太阳能的光电元(组)件。文章详述了a-Si薄膜太阳能电池的工艺优势,市场开发状况,可能应用领域,存在问题和展望。 相似文献
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美国制定了太阳能发电制造技术发展规划(PVMaT),该项计划由美国能源部拨款,由国家可重新利用能源实验室(NREL)具体实施。现在,太阳能发电制造技术研究的目标是如何降低太阳能发电的成本。最近报道的太阳能电池效率有新突破,太阳能电池每瓦的成本与电每瓦的成本相当。世界上很多国家都在研究太阳发电技术问题,因为太阳能发电可以用不同的途径实现。太阳能电池基本上采用p—n结光电二极管。本文主要介绍太阳能电池工业生产技术。美国有5个较大的太阳能电池制造商,其中4个制造商参与了PVMaT。还有8个较小的制 相似文献
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太阳能电池是把太阳能转化为电能的装置,一般的太阳能电池是用半导体材料制成的。按照晶体硅太阳电池制造的工艺流程,对太阳电池制造过程中各工序之间的测试项目进行了介绍。同时,介绍了各测试项目的测试设备、测试原理以及测试过程。 相似文献
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基于电致发光原理利用高分辨率的CCD红外相机对各种太阳能电池组件进行缺陷检测,并通过试验对各种缺陷的特点进行了详细归纳。设备实现了进料、出料及接线自动化,大大提高了检测效率。 相似文献
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Hsin-Chien Chen Liann-Be Chang Ming-Jer Jeng Chao-Sung Lai 《Solid-state electronics》2011,61(1):23-28
In this study the efficiency of polycrystalline silicon solar cells was increased carving micro channel structures using a laser. In research to date, micro channel structures on the surface of polycrystalline silicon solar cells have been manufactured and studied. In an experiment polycrystalline silicon solar cell with micro channel structures on the surface demonstrated an increase in efficiency of 0.23-1.50%, as the radius of the micro channel structures varied from 15 μm to 35 μm. Micro channels also improved the Fill Factor of polycrystalline silicon solar cells. However, the efficiency started to decrease when the radius of the micro channel structures was greater than 40 μm. Detailed features of the variation in current voltage of polycrystalline silicon solar cells with micro channels are discussed. 相似文献
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Thin monocrystalline silicon solar cells 总被引:2,自引:0,他引:2
Munzer K.A. Holdermann K.T. Schlosser R.E. Sterk S. 《Electron Devices, IEEE Transactions on》1999,46(10):2055-2061
One of the most effective approaches for a cost reduction of crystalline silicon solar cells is the better utilization of the crystals by cutting thinner wafers. However, such thin silicon wafers must have sufficient mechanical strength to maintain a high mechanical yield in cell and module manufacturing. The electrical performance of thin cells drops strongly with decreasing cell thickness if solar cell manufacturing technologies without a backside passivation or a back-surface-field (BSF) are applied. However, with the application of a BSF, stable efficiencies of over 17%, even with decreasing cell thickness, have been reached. Thin solar cells show lower photodegradation, as is normally observed for Cz-silicon cells with today's standard thickness (about 300 μm) because of a higher ratio of the diffusion length compared to the cell thickness. Cells of about 100-150 μm thickness fabricated with the production Cz-silicon show almost no photodegradation. Furthermore, thin boron BSF cells have a pronounced efficiency response under backside illumination. The backside efficiency increases with decreasing cell thickness and reaches 60% of the frontside cell efficiency for 150 μm solar cells and also for solar modules assembled of 36 cells of a thickness of 150 μm. Assuming, for example, a rearside illumination of 150 W/m2, this results in an increased module power output of about 10% relatively 相似文献
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在标准CMOS工艺下,设计了一种与CMOS工艺兼容的片上集成太阳能电池阵列,通过从外部环境收集光能为UHF射频识别(RFID)标签供电。采用SMIC 0.18μm CMOS工艺制备出太阳能电池阵列,其面积约为0.2mm2;在AM1.5、1 000W/m2、25℃标准测试条件下,测得最大输出功率为10.212μW,短路电流和开路电压分别为28.763μA和0.458V,光电转换效率为5.106%。相对于常规Si太阳能电池复杂的制造工艺,本文太阳能电池阵列与CMOS工艺相兼容,可与电路系统集成从而实现片上供电。 相似文献
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Simon Hnni Grgory Bugnon Gaetano Parascandolo Mathieu Boccard Jordi Escarr Matthieu Despeisse Fanny Meillaud Christophe Ballif 《Progress in Photovoltaics: Research and Applications》2013,21(5):821-826
This short communication highlights our latest results towards high‐efficiency microcrystalline silicon single‐junction solar cells. By combining adequate cell design with high‐quality material, a new world record efficiency was achieved for single‐junction microcrystalline silicon solar cell, with a conversion efficiency of 10.69%, independently confirmed at ISE CalLab PV Cells. Such significant conversion efficiency could be achieved with only 1.8 µm of Si. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
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《Electron Device Letters, IEEE》1983,4(5):157-159
The relationship between average grain size on the surface of SnO2 transparent conductive film and conversion efficiency of the a-Si:H solar cell was investigated. a-Si:H solar cells were fabricated on SnO2 /glass substrates with various grain sizes. The cell structure was glass/p(SiC)-i-n/Al and the effective cell area was 4 × 10-2cm2. The reflectivity from the glass substrate was reduced to about 7 percent with increasing the grain size from 0.1 to 0.8µm, and the short-circuit current was inceased from 12 to 14mA/cm2. A 7.9 percent of conversion efficiency was achieved using milky SnO2 film of 0.4-µm average grain size at AM-100mW/cm2. 相似文献
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Bernhard Reinhold Martina Schmid Dieter Greiner Manuel Schüle David Kieven Ahmed Ennaoui Martha Ch. Lux‐Steiner 《Progress in Photovoltaics: Research and Applications》2015,23(12):1929-1939
Thin film solar cells already benefit from significant material and energy savings. By using photon management, the conversion efficiency and the power density can be enhanced further, including a reduction of material costs. In this work, micrometer‐sized Cu(In,Ga)Se2 (CIGS) thin film solar cells were investigated under concentrated white light illumination (1–50×). The cell design is based on industrially standardized, lamellar shaped solar cells with monolithic interconnects (P‐scribe). In order to characterize the shunt and serial resistance profiles and their impact on the device performance the cell width was reduced stepwise from 1900 to 200 µm and the P1‐scribe thickness was varied between 45 and 320 µm. The results are compared to macroscopic solar cells in standard geometry and dot‐shaped microcells with ring contacts. Under concentrated white light, the maximal conversion efficiency could be increased by more than 3.8% absolute for the lamellar microcells and more than 4.8% absolute in case of dot‐shaped microcells compared to their initial values at 1 sun illumination. The power density could be raised by a factor of 51 and 70, respectively. But apparently, the optimum concentration level and the improvement in performance strongly depend on the chosen cell geometry, the used contact method and the electrical material properties. It turns out, that the widely used industrial thin film solar cell design pattern cannot simply be adapted to prepare micro‐concentrator CIGS solar modules, without significant optimization. Based on the experimental and simulated results, modifications for the cell design are proposed. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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Lars Oberbeck Jan Schmidt Thomas A. Wagner Ralf B. Bergmann 《Progress in Photovoltaics: Research and Applications》2001,9(5):333-340
Low–temperature deposition of Si for thin‐film solar cells has previously been hampered by low deposition rates and low material quality, usually reflected by a low open‐circuit voltage of these solar cells. In contrast, ion‐assisted deposition produces Si films with a minority‐carrier diffusion length of 40 μm, obtained at a record deposition rate of 0.8 μm/min and a deposition temperature of 650°C with a prebake at 810°C. A thin‐film Si solar cell with a 20‐μm‐thick epitaxial layer achieves an open‐circuit voltage of 622 mV and a conversion efficiency of 12.7% without any light trapping structures and without high‐temperature solar cell process steps. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献