Assembly of europium organic framework–gold nanoparticle composite thin films on silicon substrate

• Thin film of europium organic framework/gold nanoparticles is prepared on silicon.
• Fairly homogeneous films with a roughness factor of 5–10 nm are obtained.
• Above thin films offer solid-state photoluminescence and semiconducting properties.

Metal organic frameworks are a sub-class of coordination polymers and rapidly generating huge research interests in several technological areas. One of the emerging areas of their potential applications is the photovoltaics. The present study proposes the assembly of europium organic framework–gold nanoparticle nanocomposite thin film on silicon substrate. Microscopic, X-ray diffraction, surface area measurement and thermal studies have indicated the formation of the desired thin film. Spectral studies have been used to highlight their solid state optical property. Current–voltage studies have established semiconducting property of the above thin films.