研究目的
Investigating the dynamic process of the heating and vaporizing of polymer in laser/matter interaction and crack propagation of glass/polymer interface in blister expansion during blister-actuated laser-induced forward transfer.
研究成果
The analytic model of glass-interface-polyimide structure with discrete quasi-static analysis method is effective for investigating the blister formation in BA-LIFT process. The blister shape is very sensitive to laser fluence, and a higher laser fluence can get a higher blister height. The critical laser fluence is the minimum value of laser fluence for crack propagation between the polyimide film and donor substrate, which can provide guidance for the selection of laser fluence in BA-LIFT process.
研究不足
The study assumes the heating and vaporizing of polymer is fast and time-consumed can be neglected, the process of establishing vapor pressure is rapid without delay, the vapor pressure expands to deform the polyimide film can be considered as adiabatic expansion process, and the effect of the gravity is ignored compared with vapor pressure force.
