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Study on Properties of Thick-Film Front Silver Electrodes for Silicon Solar Cells

机译：硅太阳能电池厚膜前银电极的性能研究

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摘要

The front electrode is usually made by the screen printing thick-film silver pastes and the high-temperature firing process in industrial production of silicon solar cells. This paper analyzed the ohmic contact mechanism of thick-film front silver electrodes and studied the microstructure of Ag-Si interface by SEM. The paste samples, used to form front silver electrodes of silicon solar cells, were prepared. Thick-film silver electrodes were printed on silicon wafers with different sheet resistances, and the relationships between the sheet resistances and the contact properties were investigated by changing the firing temperature. By adding right amount of phosphorus compounds to the silver paste, the effects of the donor-doping (N-doping) concentrations on the series resistance of cells were studied. The experimental results show that firing temperature is critical to the Ag-Si ohmic contact, particularly when the silver pastes are designed for the wafers with high sheet resistance and the right amount of N-doping addition in the paste may decrease the series resistances of solar cells.
机译：前电极通常通过丝网印刷厚膜银浆和硅太阳能电池的工业生产中的高温烧制工艺制成。本文分析了厚膜前银电极的欧姆接触机理，并通过SEM研究了Ag-Si界面的微观结构。制备用于形成硅太阳能电池的前银电极的糊状样品。将厚膜银电极印刷在具有不同薄层电阻的硅晶片上，并通过改变烧成温度来研究薄层电阻与接触特性之间的关系。通过向银浆中添加适量的磷化合物，研究了施主掺杂（N掺杂）浓度对电池串联电阻的影响。实验结果表明，焙烧温度对于Ag-Si欧姆接触至关重要，特别是当银浆设计用于具有高薄层电阻的晶片时，正确添加N掺杂量可能会降低太阳能电池的串联电阻细胞。

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  • 来源
    《Inorganic thin films and coatings》|2012年|209-213|共5页
  • 会议地点 Guilin(CN)
  • 作者

    Ming Fu; Gonglei Jin; Xiao Ding; Lin Fan; Dong Chen;

  • 作者单位

    Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China;

    Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China;

    Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China;

    Wuhan Supernano Optoelec Technology Co. Ltd., Wuhan 430206, P.R. China;

    Wuhan Supernano Optoelec Technology Co. Ltd., Wuhan 430206, P.R. China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Silicon Solar Cells; Thick-Film Silver Electrodes; Ohmic Contact; Silver Pastes;

    机译：硅太阳能电池；厚膜银电极；欧姆接触；银浆;

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