A study on model development of the slot-die coating process through the statistical analysis

In roll-to-roll slot-die coating process, the characteristics such as coated layer thickness or roughness which determines the performance of the devices such as OPV, OLED are important. And it is determined by the interaction of coating variables which are coating gap, operating velocity, flow rate. In this study, sensitivity analysis for each variable was conducted by using D.O.E methodology. As a result, some dominant factors affecting output were revealed and a mathematical model was derived as a meta model.