Glass frits play an important role in the front contact electrodes of crystalline silicon (c-Si) solar cells. In this work, we developed a novel glass frit by doping Ag into a glass frit in the process of high-temperature synthesis. When the Ag paste including this novel glass frit was used as the front contact electrode of silicon solar cells, the conversion efficiency of poly-crystalline silicon (pc-Si) solar cells was improved by 1.9% compared to the glass frit without Ag. Through SEM characterisation and calculation of series resistance, we further found that the interface between Ag and Si was improved and the contact resistance of Ag and Si was greatly reduced, which were believed to be responsible for the improvement of solar cell performance. This work shows great guidance significance to develop novel and highly efficient commercial glass frits applied in solar cells in the future.

中文翻译：

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用于高效结晶硅太阳能电池的新型掺银玻璃粉

玻璃粉在晶体硅（c-Si）太阳能电池的正面接触电极中起着重要作用。在这项工作中，我们通过在高温合成过程中将Ag掺杂到玻璃料中而开发了一种新型的玻璃料。当将包含这种新型玻璃粉的Ag糊料用作硅太阳能电池的正面接触电极时，与不含Ag的玻璃粉相比，多晶硅（pc-Si）太阳能电池的转换效率提高了1.9％。通过SEM表征和串联电阻的计算，我们进一步发现Ag和Si之间的界面得到改善，并且Ag和Si的接触电阻大大降低，这被认为是改善太阳能电池性能的原因。