Optical properties of a polymer film substrate after laser ablation of transparent conductors

Abstract

Abstract In the article some aspects of laser processing of conductive and transparent film of ITO (indium tin oxide) layer on PET (polyethylene terephthalate) substrate are discussed. The optical properties of polymeric substrates after laser ablation of an ITO layer was the main subject of these studies. Determination of conditions of the laser treatment without damage of polymer substrate was the purpose of presented investigation. The influence of a scanning speed, duration and energy of laser pulses on the results of interaction of nanosecond fiber laser on ITO film have been presented. Optical properties of PET substrate after laser ablation of ITO layer have been estimated by measurements of a spectral transmission coefficient and microscopic examinations. The process parameters window for completely ablation of ITO layer without damage of the polymer substrate was established.