Investigation of Contact Formation during Silicon Solar Cell Production

This article deals with the investigation of the influence of sintering conditions on the formation process of screen printed contacts on passivated boron doped P⁺ emitters. The experiment was focused on measuring of resistance changes of two thick film pastes during firing processes with different conditions. Two different temperature profiles were compared at an atmospheric concentration of O₂. The influence of the O₂ concentration on resistance was investigated for one profile. A rapid thermal processing furnace modified for in-situ resistance measurements was used. The change of resistance was measured simultaneously with the temperature.