Laser-induced transfer printing method for electrode grid line of photovoltaic solar cell

The invention discloses a laser-induced transfer printing method for an electrode grid line of a photovoltaic solar cell. The laser-induced transfer printing method comprises the following steps of: firstly, preparing a silver paste film on a transparent substrate; irradiating the silver paste film through a laser beam, and inducing the silver paste film to generate a silver paste bridge between the transparent substrate and the silicon wafer; scanning the silver paste film through a laser beam, and expanding the silver paste bridge; and stretching the silver paste bridge by moving the transparent substrate until the silver paste bridge and the transparent substrate are broken and a corresponding grid line is generated on the silicon wafer so as to finish printing, and finally sintering the printed silicon wafer. According to the invention, the grid lines with a high aspect ratio can be transferred, and the production cost is reduced. 本发明公开了一种光伏太阳能电池电极栅线激光诱导转印方法，包括首先在透明基片上制备出银浆薄膜；通过激光光束照射银浆薄膜，诱导银浆薄膜在透明基片和硅片之间