Optical absorption and electrical properties of enhanced efficiency in organic solar cells as interfacial layer with Au NPs

Incorporation of gold nanoparticles (Au NPs) at the interfaces of organic solar cells enhance the light absorption in the active layer and the photoluminescence spectra showed a significant enhancement in their intensity which mainly contributes to the increased light absorption of active layer induced by localized surface plasmon resonance. The device with Au NPs at the interfaces showed 16.1% enhancement in efficiency.