Electronic structure, photoemission spectra, and vacuum-ultraviolet optical spectra of CsPbC13 and CsPbBr3, 1981
Optical spectra of CsPbC13 and CsPbBr3 have been measured in the range from 2 to 10
eV and have b... more Optical spectra of CsPbC13 and CsPbBr3 have been measured in the range from 2 to 10
eV and have been combined with ultraviolet-photoemission-spectroscopy {UPS)—measurements
at 21.1 and 40.8 eV. A quantitative band calculation is presented, which takes into
account anion-anion interaction as well as electronic states of the Cs+ ion. The
prominent features of earlier band models and measurements are reestablished through
our measurements and calculations, namely that the valence band consists of anionic p
functions and Pb 6s functions, the lowest conduction band being Pb 6p type, and the
lowest gap occuring at the |t(l point of the Brillouin zone. Inclusion of a further
(Cs 6s—type) conduction band, however, is necessary to bring the calculated joint density
of states into agreement with vacuum-ultraviolet optical spectra. The calculated densities
of states of the valence bands are in quantitative agreement with those deduced from our
UPS measurements.
Bookmarks Related papers MentionsView impact
Uploads
Papers by Amal Ghribi
eV and have been combined with ultraviolet-photoemission-spectroscopy {UPS)—measurements
at 21.1 and 40.8 eV. A quantitative band calculation is presented, which takes into
account anion-anion interaction as well as electronic states of the Cs+ ion. The
prominent features of earlier band models and measurements are reestablished through
our measurements and calculations, namely that the valence band consists of anionic p
functions and Pb 6s functions, the lowest conduction band being Pb 6p type, and the
lowest gap occuring at the |t(l point of the Brillouin zone. Inclusion of a further
(Cs 6s—type) conduction band, however, is necessary to bring the calculated joint density
of states into agreement with vacuum-ultraviolet optical spectra. The calculated densities
of states of the valence bands are in quantitative agreement with those deduced from our
UPS measurements.
eV and have been combined with ultraviolet-photoemission-spectroscopy {UPS)—measurements
at 21.1 and 40.8 eV. A quantitative band calculation is presented, which takes into
account anion-anion interaction as well as electronic states of the Cs+ ion. The
prominent features of earlier band models and measurements are reestablished through
our measurements and calculations, namely that the valence band consists of anionic p
functions and Pb 6s functions, the lowest conduction band being Pb 6p type, and the
lowest gap occuring at the |t(l point of the Brillouin zone. Inclusion of a further
(Cs 6s—type) conduction band, however, is necessary to bring the calculated joint density
of states into agreement with vacuum-ultraviolet optical spectra. The calculated densities
of states of the valence bands are in quantitative agreement with those deduced from our
UPS measurements.