9 February 1995 Excitonic states of Pb ion clusters dispersed in CdI2
Author Affiliations +
Proceedings Volume 2362, International Conference on Excitonic Processes in Condensed Matter; (1995) https://doi.org/10.1117/12.200949
Event: Excitonic Processes in Condensed Matter: International Conference, 1994, Darwin, Australia
Abstract
Evolution of excitonic luminescence has been investigated in Pb1-xCdxI2 solid solutions over the whole range of composition. A significant change in the luminescence characteristics is found to occur at the composition x around 0.5, which corresponds to percolation threshold of the substituted metal ions. The luminescence in the crystals with x larger than 0.5 is associated with PbI2 clusters dispersed in CdI2 matrix. Time- resolved measurements of the emission spectra reveal that the luminescence consists of singlet and triplet components. The energy split between the singlet and triplet states increases with the decrease in the cluster size. The origin of the triplet state is discussed.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tetsusuke Hayashi, Ping Gu, and Masayuki Watanabe "Excitonic states of Pb ion clusters dispersed in CdI2", Proc. SPIE 2362, International Conference on Excitonic Processes in Condensed Matter, (9 February 1995); doi: 10.1117/12.200949; https://doi.org/10.1117/12.200949
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
Back to Top