The optical absorption enhancement in thin film organic solar cells (OSCs) with plasmonic metal nanoparticles (NPs) has been studied by means of finite element method with a three-dimension model. It is found that significant plasmonic enhancement of above 100% can be obtained by introducing Ag-NPs at the interface between P3HT:PCBM active layer and PEDOT:PSS anode layer. This enhancement is even larger than that with Ag-NPs totally embedded in the P3HT:PCBM active layer of thin film OSCs. Furthermore, the enhancement mechanism of Ag-NPs at different positions of thin film OSCs is investigated.
During utilizing structural and functional advantages of polyoxometalates (POMs) for enhanced applications, the suitable assembly of these clusters in framework materials acting as the binding nodes represents one of the mostly favourable approaches. In contrast to well-developed coordination/covalent combinations, a convenient strategy to build the porous structures of POMs with smaller sized counterions as bridging ligand via ionic interaction is developed here to reinforce the capability in gas adsorption in parallel to MOFs/COFs. With this goal, a series of POMs-based ionic
The enhancement effect of optical absorption with core-shell gold nanoparticles on the surface of wafer-based silicon photovoltaic devices has been studied. The obvious enhanced photocurrent is observed, especially when the wavelength is above 800 nm, and the highest enhancement value is about 14% around the wavelength of 1100 nm. The simulation results indicate that the presence of dielectric coating shell could improve the surface plasmon based scattering effect at longer wavelength range, which provides a good understanding of the experiment results.
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