Acta Physica Sinica, Volume. 68, Issue 20, 208801-1(2019)

Three-point and four-point mechanical bending test modeling and application in solar cells

Ren He1, Ying-Ye Li2, Jing-Xin Chen2, Xue-Ling Zhao2, Huan Tang2, Li-Na Zhang2, Yan-Jiao Shen2, Feng Li2, Lin Yang1, and De-Yuan Wei1、*
Author Affiliations
  • 1Key Laboratory of Optic-electronic Informationand Materials, Institute of Physical Science and Technology, Hebei University, Baoding 071002, China
  • 2Yingli Green Energy Holding Co., Ltd., Baoding 071051, China
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    Figures & Tables(6)
    The schematic diagram of the structure of bifacial solar cell.双面电池结构示意图
    The schematic of test parameter: (a) Three point bengding; (b) four point bengding.测试参数示意图 (a) 三点弯曲; (b) 四点弯曲
    Parameter comparison of silicon wafer test of three point and four point bending test: (a) Force as function of the bending value; (b) maximum bending displacement; (c) maximum force; (d) fracture strength.硅片三点和四点弯曲测试数据对比 (a) 载荷与位移的变化曲线; (b) 最大弯曲位移; (c) 最大载荷; (d) 断裂强度
    Parameter comparison of bifacial solar cells test of three point and four point bending test: (a) Force as function of the bending value; (b) maximum bending displacement; (c) maximum force; (d) fracture strength.双面电池三点和四点弯曲测试数据对比 (a) 载荷与位移的变化曲线; (b) 最大弯曲位移; (c) 最大载荷; (d) 断裂强度
    The model diagram of force and bending moment: (a) Three point bending test; (b) four point bending test.作用力和弯矩图 (a) 三点弯曲; (b) 四点弯曲
    • Table 1. Comparison of three point bending and four point bending tests.

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      Table 1. Comparison of three point bending and four point bending tests.

      单位国家样片厚度测试方法研究内容年份参考文献
      注: TNI-UCC, Tyndall National Institute, University College Cork (科克大学, 廷德尔国立研究所); Fraunhofer-IMM, Fraunhofer-Institute for Mechanics of Materials (弗劳恩霍夫材料力学研究所); RERC-FREI-AIST, Renewable Energy Research Center, Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology (国家先进工业科学技术研究所, 福岛可再生能源研究所, 可再生能源研究中心); SUTD, Singapore University of Technology and Design (新加坡科技设计大学) UNSW, University of New South Wales (新南威尔士大学); IEP-TUBF, Institute of Experimental Physics, TU Bergakademie Freiberg (弗莱贝格工业大学, 实验物理研究所); MEC, Mitsubishi Electric Corporation (三菱电力公司); Fraunhofer-CSP, Fraunhofer Center for Silicon Photovoltaics (弗劳恩霍夫硅光电中心); CMME, Centre for Modelling in Mechanical Engineering (机械工程建模中心); Solarforce S.A., 太阳力股份有限公司; ISFH, Institute for Solar Energy Research Hamelin (哈梅林太阳能研究所); UNIST, Ulsan National Institute of Science and Technology (蔚山国家科学技术研究院).
      TNI-UCC爱尔兰单晶硅片50—525 μm三点弯曲用统计方法建立了不同厚度单晶硅材料断裂强度的模型2006[3]
      Fraunhofer -IMM德国单晶硅片48—200 μm三点弯曲分析了磨削、抛光、蚀刻工艺对薄硅试样机械强度的影响2007[5]
      RERC-FREI-AIST日本单晶硅片200—250 μm三点弯曲金刚线切割时产生的应力损伤层对单晶硅片机械性能的影响2008[6]
      浙江大学中国单晶硅电池200 μm三点弯曲背电极花样对单晶硅电池的机械强度有明显影响2011[7]
      浙江大学中国多晶硅片220 μm三点弯曲铸锭多晶硅中, 锗掺杂能增强多晶硅片的机械强度2011[8]
      SUTD新加坡光伏组件三点弯曲封装材料对太阳能光伏组件的可靠性影响2016[9]
      Solarforce S.A.法国多晶硅片60—140 μm四点弯曲研究了带状生长多晶硅的弯曲强度随不同工艺条件的变化2015[10]
      UNSW澳大利亚多晶硅片200 μm四点弯曲硅片的边缘缺陷对多晶硅片断裂强度的影响2009[2]
      CMME西班牙多晶、单晶、类单晶200 μm四点弯曲对相同厚度的多晶、单晶、类单晶的晶体硅片的机械强度进行了比较2014[11]
      IEP-TUBF德国多晶硅片250—300 μm四点弯曲研究了损伤腐蚀对太阳能硅片力学性能的影响2009[4]
      UNIST韩国单晶硅片50 μm四点弯曲同制绒工艺改变硅片表面形貌对晶体硅机械性能的影响2017[12]
      Fraunhofer -CSP德国多晶硅片四点弯曲激光钻孔对机械性能的影响2012[13]
      MEC日本多晶硅片200—300 μm四点弯曲金刚线切割多晶硅片的弯曲强度, 并对不同强度值产生的原因进行了分析2011[14]
      ISFH德国光伏组件四点弯曲标准尺寸太阳能光伏组件在受压情况下的裂纹分布情况2016[15]
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    Ren He, Ying-Ye Li, Jing-Xin Chen, Xue-Ling Zhao, Huan Tang, Li-Na Zhang, Yan-Jiao Shen, Feng Li, Lin Yang, De-Yuan Wei. Three-point and four-point mechanical bending test modeling and application in solar cells[J]. Acta Physica Sinica, 2019, 68(20): 208801-1

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    Paper Information

    Received: Apr. 23, 2019

    Accepted: --

    Published Online: Sep. 17, 2020

    The Author Email:

    DOI:10.7498/aps.68.20190597

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