Development of Self-Striking Red Glass from Gold Nanoparticles

In this research, the self-striking red glass coloration from gold nanoparticles (AuNPs) doped in glasses has been developed. The glass samples were prepared in formula (63.995-x)SiO 2 : 15Na 2 O : 10CaO : 10K 2 O : 0.5Sb 2 O 3 : 0.005SeO 2 : 0.5SnO 2 : xAuNPs (where x is 0.00, 0.01, 0.02, 0.03, 0.04 and 0.05 % by weight). The glasses were melted by normal melt-quench technique at 1,500 °C in normal atmosphere. The red color was obtained immediately when take the glass out of furnace. The red color of glasses were confirmed by UV-visible spectrophotometer in the wavelength range 200-1100 nm and color coordinate in CIE L*a*b* system.