Figure 6From: Modification of light absorption in thin CuInS2 films by sprayed Au nanoparticlesOptical absorptance spectra of CIS film on glass (ref) and of Au-NP/CIS nanocomposite films on glass. Au nanoparticles were formed by spraying 2 mM HAuCl4 aqueous solution with a volume of 2.5, 5, and 15 ml onto a glass substrate at a temperature of 340°C. CIS was grown by spray onto glass (reference) or Au-NP layer at 310°C.Back to article page