Engineering topics

Schulte, Kevin Louis

Publications and source records attributed to Schulte, Kevin Louis.

3 records

DOE OSTI2023

Metamorphic two-junction photovoltaic devices with removable graded buffers

The present disclosure relates to a method for manufacturing a device, where the device includes, in order, a metamorphic contact layer, a first metamorphic junction, a metamorphic tunnel junction, and a second metamorphic junction. To produce the device, the manufacturing includes, in order, a first depositing of a buffer layer onto a substrate, a second depositing of the metamorphic contact layer, a third depositing of the first metamorphic junction, a fourth depositing of the metamorphic tunnel junction, a fifth depositing of the second metamorphic junction, and the removing of the buffer layer and the substrate.

Schulte, Kevin Louis↗

DOE OSTI2021

Light scattering structures for thin-film solar cells and methods of making the same

The present disclosure relates to a method that includes contacting a surface of a first layer that includes a Group III element and a Group V element with a gas that includes HCl, where the first layer is positioned in thermal contact with a wafer positioned in a chamber of a reactor, and the contacting results in a roughening of the surface.

Ptak, Aaron Joseph↗

DOE OSTI2021

Hydride enhanced growth rates in hydride vapor phase epitaxy

Presented herein are reactors for growing or depositing semiconductor films or devices. The reactors disclosed may be used for the production of III-V materials grown by hydride vapor phase epitaxy (HVPE).

Schulte, Kevin Louis↗