An organic solar cell (OSC), competitive with traditional one (Si-based), draws attention to future renewable energy sources due its low-cost and continually rising efficiency. The tandem or multijunction structure undoubtedly offers an efficient way boost the performance of OSCs. This work has explored optical modeling different photoactive materials identify potential for structure. double, t...

Carbon-protected BiVO4 photoanode and Cu2O photocathode tandem photoelectrochemical (PEC) system has been explored to reduce surface recombination enhance the stability of photoelectrodes. In addition carbon layer, electrodeposited FeOOH nanolayer drop-casted MoS2 co-catalyst layer on photocathode, respectively improve reaction kinetics. The optimized (Mo-BiVO4/C/FeOOH) (Cu2O/C/MoS2) produces c...

We present simulation results obtained with the SCAPS-1D package of a lead-free all-perovskite tandem solar cell. The top and bottom subcells, consisting MAGeI3, FASnI3, respectively, were optimized individually by varying material properties such as thickness, electron affinity, capture cross-section. These standalone subcells are then utilized for structure. optimal cell thickness was determi...

III-V semiconductor nanowires are a platform for next-generation photovoltaics. An interesting research direction is to embed a nanowire array in a transparent polymer, either to act as a stand-alone flexible solar cell, or to be stacked on top of a conventional Si bottom cell to create a tandem structure. To optimize the tandem cell performance, high energy photons should be absorbed in the na...

We derive the photovoltaic conversion efficiency limit for two-terminal tandem solar cells with a perovskite top cell and silicon bottom an embedded spectrum splitter. For large-bandgap top-cells, splitter strongly enhances because of enhanced light absorption trapping. A Lambertian spectral shows significantly improved effect compared planar find ideal enhancement 500-nm thick 6% absolute band...

Wide band gap thin-film kesterite solar cell based on non-toxic and earth-abundant materials might be a suitable candidate as top for tandem configuration in combination with crystalline silicon bottom cell. For this purpose parameters we have extracted from electrical optical characterization techniques of Cu2ZnGeSe4 absorbers cells, model has been developed to describe the efficiency limitati...