Optical properties of PbI2and PbF2
- 14 March 1977
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 10 (5) , 761-771
- https://doi.org/10.1088/0022-3719/10/5/018
Abstract
The optical spectra of PbI2 and PbF2 between their fundamental absorption edges and 130 eV are presented. A Kramers-Kronig analysis is made, and the data are discussed and compared with band structure calculations. A comparison with photoemission spectra provides a measurement of core exciton binding energies. In PbF2 it is as high as 9 eV, which is more than twice the size of those found in alkali halides.Keywords
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