A promising way to obtain large, luminescent and transparent thick films suitable for optical devices

Abstract

This work focuses on the formation of large, luminescent and transparent thick films of polyvinylpyrrolidone (PVP) embedding phosphors. Characterization of these films was made using UV-Visible absorption spectroscopy and cw-selective excitation induced photoluminescence. Results presented here demonstrate the preparation polymer films incorporating luminescent materials in order to obtain large, transparent and thick surfaces of well-dispersed phosphors suitable for use in optical devices. This technique allows the preparation of self-standing, flexible and handy films that could be easily cut or shaped and then used for various purposes.