Study the Effect of Chemical Treatment on Substrate Surface on the Formation Nanodots Array and its Optical Properties

Abstract

In this research, an effective method to fabricate various metallic nanoand micro structure patterns is developed by combination of chemical stamping and selective peeling off technique. The feasibility of the process is experimentally studied and demonstrated. In this paper, the authors present the effects of the chemical treatment on the substrate surface on the formation of the nanodots array and its absorbance property. The results show that the chemical treatment by dropping Acetone solution on the quartz glass substrate strongly affects the morphology and absorbance property of the nanodots array. With the Acetone treatment on the substrate, the nanodots become smaller and more uniform in size through thermal dewetting process. Simultaneously, it results in blue shifted of the absorbance peak and enhancement of the absorbance peak intensity. The improvement of the optical property of the nanodots array is useful for plasmonic solarcell and bio sensing applications.