Two designs for an integrated photoelectrolysis system that uses a 10× concentrating solar collector have been investigated in detail. The system performance was evaluated using a multi-physics model that accounted for the properties of the tandem photoabsorbers, mass transport, and the electrocatalytic performance of the oxygen-evolution and hydrogen-evolution reactions (OER and HER, respectiv...

In this paper we used two free-metal organic dyes (dye 1 and dye 2) based on indigo and thioindigo with cyanoacrylic acid as the electron acceptor group. The proposed dyes were sensitized from naphalene as the starting material by standard reactions and characterized by different analytical techniques and UV-Visible spectroscopy after purification. Spectrophotometric measurements of the organic...

Perovskite-based tandem solar cells are promising candidates for industrial applications. This study demonstrated perovskite/silicon devices based on a conventional Si homojunction device configuration employing tunnel oxide passivating contact to improve the voltage. Moreover, we fabricated it without deposition of recombination layer large area while showing possibility applying industry mark...

In the global context of diversification usable energy sources, use renewable energies, in particular solar photovoltaic energy, is becoming increasingly important. As such, development a new generation cells based on CIGS material promising. Indeed, efficiency these has exceeded 20% recent years. Thus, our work consists modeling tandem cell Cu(In,Ga)Se2 (CGS/CIGS). The goal to optimize its phy...

This article focuses on the material properties of two III-V semiconductors, AlGaAs and GaInAsP, their usage as middle cell absorber materials in a wafer-bonded III-V//Si triple-junction solar cell. To this end single-junction cells were grown epitaxially lattice matched GaAs wafers using metalorganic vapor phase epitaxy. By optimizing growth temperature V/III ratio we could increase open-circu...

The potential of tandem solar cells combining two chalcopyrite absorbers is evaluated using numerical modeling based on an exhaustive set experimental parameters, offering a high degree confidence in the values reported herein. simple yet reliable approach used here combines transfer matrix‐based optical model wide bandgap CIGSe top subcell as input for 1D electrical reference narrow bottom cel...