Abstract
Fluorescence, fluorescence excitation and absorption spectra of picene have been measured in the vapor phase. It is shown that picene vapor exhibits weak fluorescence from the S2(π, πâ̂ -) state in addition to strong S1(π, πâ̂ -) fluorescence. The S2/S1 fluorescence yield ratio is evaluated to be approximately 1.3 × 10-2 following the excitation into the S3 state. It is shown that the relative S 2 fluorescence quantum yield increases with increasing excitation energy, while the S1 fluorescence yield is nearly invariant. Mechanism of the appearance of the S2 fluorescence of picene vapor is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 26-28 |
| Number of pages | 3 |
| Journal | Chemical Physics Letters |
| Volume | 570 |
| DOIs | |
| Publication status | Published - Apr 15 2013 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Cite this
Itoh, T., Yamaji, M., & Okamoto, H. (2013). S2 fluorescence from picene vapor. Chemical Physics Letters, 570, 26-28. https://doi.org/10.1016/j.cplett.2013.03.055