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 17, 2009 | Published
Book Section - Chapter Open

Modeling, synthesis, and characterization of thin film copper oxide for solar cells


The modeling, growth, and characterization of Copper Oxide thin films for solar cell applications are reported. Cu_2O has several attractive properties which include its direct band gap (Eg=2.17 eV) for use in photoelectrolysis of water and use in tandem multi-junction cells. Detailed balance calculations predict efficiencies on the order of 20% while Cu_2O cells have yet to even pass 2% efficiency. The device physics model reveals that defects, particularly at the heterojunction interface, are the main reason for lowered efficiencies. Epitaxial Cu_2O (100) thin films on MgO are fabricated using RF Oxygen plasma MBE. The films are quite smooth and showed mobilites in the range of 10-100 cm^2/V*sec and carrier concentrations in the range of 10^(14)-10^(17). Finally, the epitaxial growth of Cu_2O on a MgO template is demonstrated.

Additional Information

© 2009 IEEE. We acknowledge financial support from U.S. Department of Energy under grant DE-FG36-08G018006, and the Caltech Center for Sustainable Energy Research. We thank Dr. Matthew Dicken, Greg Kimball, and Carrie Hofmann for engaging discussions and assistance.

Attached Files

Published - Darvish2009p11094Pvsc_2008_33Rd_Ieee_Photovoltaic_Specialists_Conference_Vols_1-4.pdf



Additional details

August 20, 2023
October 20, 2023