Laser sensitization of PbS thin film

In order to solve the problems which sensitization conditions are diffcult to be controled and repetitiveness is lower, we use the laser instead of furnce in atmosphere to irradiate the element which need sensitizing.We get a good sensitization result.This method can judge the situation of sensitization according to the colors on the surface. During sesitization process,we can change and control the conditions which we want.By using this method,we compare with old method: the speed of sensitization is faster.The parameters of sensitized element are better.The yield is higher.We think it gives a better way to manufacture the PbS infrared detectors.