Lattice matched III-V/Ge solar cells are mainstream for Concentrator PhotoVoltaics (CPV).
Having both contacts on the back side could increase efficiency thanks to reduced shading …

Abstract Tandem GaInP/GaAs//Si (inactive) solar cells were manufactured by direct wafer
bonding under vacuum. At this early stage, an inactive silicon substrate was used (ie n+ Si …

A novel bonding approach with an interface consisting of a metal and dielectric is
developed, and a “pillar‐array” metal topology is proposed for minimal optical and electrical …

This paper gives a review of the work performed in the framework of the EC-funded project
FULLSPECTRUM aiming for higher photovoltaic (PV) conversion efficiencies by …

Multiple-junction solar cells made from III-V compound semiconductors are delivering the
highest solar-electric conversion efficiencies. Increasing the number of junctions offers the …

Concentrator solar cells with efficiencies up to 46.1% have been developed in a
collaboration between Fraunhofer ISE, SOITEC and CEA-LETI using a fourjunction cell …

Triple-junction (3J) solar cells will soon be history. The next generation of multi-junction (MJ)
devices are now reaching efficiencies far beyond the record levels of 3J cells on …

A novel approach has been developed to enable the creation of a fully lattice-matched two-
terminal four-junction III-V solar cell is which an upper 1.85 eV GaInP/1.42 eV GaAs two …

A new concept is proposed to develop efficient tandem cells based on silicon bottom cells
and wide band gap Cu (In, Ga, Al)(S, Se) 2 (noted CIGS) top cells. It consists in introducing …

Monolithical integration of III-V and Si is of strong interest to produce tandem solar cells
reaching high conversion efficiencies. In the context of the French ANR research project …