The paper investigated the printing of solutions of polyfluorenes differing in end groups in p-xylene of various concentrations with various additives. For each composition, viscosity, surface tension was measured. Printing was carried out on a Dimatix printer. Substrate - glass with a layer of PEDOT:PSS. The geometric characteristics of the printed structures were measured. A working PLED was obtained with an injection layer obtained by Ink-Jet printing
