Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published June 2015 | public
Book Section - Chapter

Molecular Beam Epitaxy of Cu_2O Heterostructures for Photovoltaics


Cu_2O is a p-type semiconductor that has demonstrated attractive photovoltaic properties, but its efficiencies have been limited by surface instability and lack of high quality thin films. In this work, plasma-assisted molecular beam epitaxy is used to precisely control film orientation and interface chemistry of Cu_2O heterostructures. Thin films of Cu_2O are deposited by MBE onto thin films of Pt and Au sputtered on MgO single crystal substrates. This heterostructure configuration provides a path for an all-epitaxial thin film Cu_2O solar cell, which can serve as a top cell in a tandem structure with a crystalline Si bottom cell.

Additional Information

© 2015 IEEE. The authors gratefully acknowledge support from the Dow Chemical Company under the earth abundant semiconductor project.

Additional details

September 15, 2023
October 23, 2023