Preparation of Optical Resins Containing Dispersed Gold Nanoparticles by the Matrix Sputtering Method

Transparent examples: Optical resins containing dispersed gold nanoparticles (AuNPs) can be prepared by the title method. The obtained light-yellow AuNPs/thiourethane resins contain nanoparticles less than 1 nm in diameter and show good transparency and fluorescence at 690 nm (see picture). The analogous urethane resins are transparent with a red color arising from the surface plasmon absorption of the AuNPs.