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首页> 外文会议>European Photovoltaic Solar Energy Conference; 20060904-08; Dresden(DE) >NOVEL METAL JET PRINTING TECHNIQUE FOR THE FRONT SIDE METALLIZATION OF HIGHLY EFFICIENT INDUSTRIAL SILICON SOLAR CELLS
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NOVEL METAL JET PRINTING TECHNIQUE FOR THE FRONT SIDE METALLIZATION OF HIGHLY EFFICIENT INDUSTRIAL SILICON SOLAR CELLS

机译：高效工业硅太阳能电池前侧金属化的新型金属射流印刷技术

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摘要

A new technique for the front side metallization of silicon solar cells is presented, based on the idea to form a two-layer contact structure. The first layer needs to have low contact resistance and good mechanical adhesion to the silicon surface; the second layer, which is formed by light-induced plating requires high line conductivity. If the first layer is sufficiently narrow, excellent aspect ratios can be achieved. This paper focuses on the creation of the first layer with a metal aerosol jet printer. A metal containing aerosol is focused via a second surrounding gas stream through a nozzle onto the substrate, which reduces clogging significantly. Another advantage of this non-contact printing technique is that the width of the deposited line is smaller than the outlet diameter of the nozzle. Fine and continuous lines with a width of 30 μm were printed using a nano-particle ink. As the adhesion of these layers was not sufficient, a commercially available screen-printing paste for solar cell metallization was modified and tested. 50×50 mm~2 multicrystalline silicon solar cells were processed, achieving efficiencies up to 16.4% with an Al-BSF.
机译：基于形成两层接触结构的思想，提出了一种用于硅太阳能电池正面金属化的新技术。第一层需要具有低接触电阻和对硅表面的良好机械粘附力；通过光诱导镀层形成的第二层需要高的线电导率。如果第一层足够窄，则可以实现优异的纵横比。本文着重于使用金属气溶胶喷射打印机创建第一层。含金属的气溶胶通过喷嘴通过第二周围的气流聚焦到基材上，从而大大减少了堵塞。这种非接触式印刷技术的另一个优点是，沉积线的宽度小于喷嘴的出口直径。使用纳米粒子墨水打印宽度为30μm的细线和连续线。由于这些层的粘合性不足，因此对用于太阳能电池金属化的市售丝网印刷浆料进行了改性和测试。处理了50×50 mm〜2的多晶硅太阳能电池，使用Al-BSF可以达到高达16.4％的效率。

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