Ultra-violet polarization ratios in anthracene-tetracene mixed crystals

Abstract

The visible absorption and emission spectra of tetracene in anthracene host crystal have been re-investigated, and values of polarization ratio and crystal intensification factors recorded with the help of measured crystal thickness and tetracene concentration. The results are compared with theoretical expectations based on solution oscillator strengths and estimates of higher transition multipoles. The trend is correctly accounted for and the agreement for polarization ratios and intensification factors is reasonably good.