Abstract
An extra luminescence band is observed in CdS, CdSe, and ZnO under intense illumination by laser light. It is suggested that the additional luminescence arises from a particular exciton-exciton interaction process common to these semiconducting compounds.
- Received 2 February 1970
DOI:https://doi.org/10.1103/PhysRevLett.24.890
©1970 American Physical Society
