10 citations · 19 across the 5 of their papers we have counts for
6 papers
Suppression of Phase Separation in AlGaInAs Compositionally Graded Buffers for 1550 nm Photovoltaic Converters on GaAs
Kevin L. Schulte, John F. Geisz, Harvey L. Guthrey +3
We investigate strategies to suppress phase separation and reduce threading dislocation densities (TDD) in AlGaInAs compositionally graded buffers (CGBs) that span the lattice cons…
Large Area Near-Field Thermophotovoltaics for Low Temperature Applications
Jennifer Selvidge, Ryan M. France, John Goldsmith +3
Thermophotovoltaics, devices that convert thermal infrared photons to electricity, offer a key pathway for a variety of critical renewable energy technologies including thermal ene…
Sub-0.6 eV Inverted Metamorphic GaInAs Cells Grown on InP and GaAs Substrates for Thermophotovoltaics and Laser Power Conversion
Kevin L. Schulte, Daniel J. Friedman, Titilope Dada +6
We present inverted metamorphic Ga0.3In0.7As photovoltaic converters with sub-0.60 eV bandgaps grown on InP and GaAs substrates. The compositionally graded buffers in these devices…
Efficient and Scalable GaInAs Thermophotovoltaic Devices
Eric J. Tervo, Ryan M. France, Daniel J. Friedman +15
Thermophotovoltaics are promising solid-state energy converters for a variety of applications such as grid-scale energy storage, concentrating solar-thermal power, and waste heat r…
Triple-junction solar cells with 39.5% terrestrial and 34.2% space efficiency enabled by thick quantum well superlattices
Ryan M. France, John F. Geisz, Tao Song +4
Multijunction solar cell design is guided by both the theoretical optimal bandgap combination as well as the realistic limitations to materials with these bandgaps. For instance, t…
Thermophotovoltaic Efficiency of 40%
Alina LaPotin, Kevin L. Schulte, Myles A. Steiner +10
We report the fabrication and measurement of thermophotovoltaic (TPV) cells with efficiencies of >40%, which is a record high TPV efficiency and the first experimental demonstratio…