Low temperature nano particle preparation and deposition for phase-controlled compound film formation

摘要

The present invention is directed to different methods used in the formation of an ink, as well as being directed to the formation of layers used in the fabrication of a solar cell, particularly the absorber layer. In one embodiment, the invention is directed to formulating an ink comprising Cu-rich particles and solid Ga—In particles, wherein the step of formulating is carried out at a temperature such that no liquid phase is present within the solid Ga-In particles. In another embodiment, the specific steps taken during the formulation of the ink are described. In yet another embodiment, the process of using the formulated ink to obtain a precursor layer are described.