OPTICAL ABSORPTION EDGE AND LUMINESCENCE OF PBI//2.

F. Levy*, C. Depeursinge, Chi Thanh Le Chi Thanh, A. Mercier, E. Mooser, J. P. Voitchovsky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In the reflection spectrum of PbI//2, a new line which can be attributed to the n equals 3 exciton state has been observed, indicating that the exciton series in PbI//2 is normal and obeys a Wannier Law with a groundstate ionization energy of 30 meV. A fluorescence peak of 4 meV above the exciton ground state has been detected polarized with E parallel to c which is probably due to the extraordinary polariton mode. Many spectra revealed the polytypic nature of most PbI//2 samples.

Original languageEnglish (US)
Pages (from-to)1237-1241
Number of pages5
JournalSemiconductor International
StatePublished - 1974
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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