Optical Properties of PbTe and PbSe

POSTER

Abstract

We report optical properties of PbTe and PbSe as obtained from first principles calculations with the Tran-Blaha modified Becke-Johnson potential. The results are discussed in relation to existing experimental data, particularly in relation to the temperature dependence of the band gap.

*Work at ORNL was supported by the Department of Energy, Basic Energy Sciences through the S3TEC Energy Frontier Research Center. Work at LSU was funded in part by the National Science Foundation Award Number: EPS 1003897.

Authors

  • Chinedu Ekuma

    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA

  • David Singh

    • Oak Ridge National Laboratory
    • Material Science and Technology Divison, Oak Ridge National Laboratory, TN, USA

  • Juana Moreno

    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
    • Louisiana State University
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA
    • Department of Physics and Astronomy, Louisiana State University
    • Department of Physics \& Astronomy, Louisiana State University

  • Mark Jarrell

    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
    • Louisiana State University
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA
    • Louisiana State University (LSU)
    • Department of Physics and Astronomy, Louisiana State University
    • Department of Physics \& Astronomy, Louisiana State University