Excimer Fluorescence of Poly(N-Vinylcarbazole).
Abstract
Fluorescence spectra and lifetimes of carbazole, 1,3-bis(N-carbazolyl)-propane and poly(N-vinylcarbazole) have been studied as a function of pressure to 30 kbar at room temperature and 77K. Polymer films show exclusively excimer fluorescence (tau = 43 nsec) at room temperature. This is not quenched at 77K but appears together with a new emission (tau = 12 nsec) attributed to traps arising from exciton coupling between adjacent carbazole chromophores. The comparative P,T response of the three compounds suggests that excimers do not form between adjacent chromophores in the amorphous polymer. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1971
- Accession Number
- AD0725863
Entities
People
- H. W. Offen
- P. C. Johnson
Organizations
- University of California, Santa Barbara