以不增加印刷材料成本和栅线电阻值为前提,提出了采用变墨滴体积多次喷印工艺方案。采用该方案印刷硅基太阳电池,主要通过减小太阳电池栅线的线宽,来达到提高太阳电池能量转换效率的目的。

Multi-pass ink-jet printing is one of the main ways to improve the efficiency of solar cells. However, grid line width broadening is one of the difficult points of the technology. In order not to increase the cost of printing materials and grid line resistance, multi-pass ink-jet printing process with variable volume ink drops was put forward. Printed silicon-based solar cell using this process is to improve the energy conversion efficiency of solar cells, mainly by reducing the grid lines width of solar cells.