Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1590902 | Science and Technology of Advanced Materials | 2006 | 4 Pages |
Abstract
The fluorescence lifetime of dibenzofuran and monochlorodibenzofuran was measured directly using a picosecond distributed-feedback dye laser and a fast-response microchannel-plate photomultiplier. The fluorescence lifetimes for dibenzofuran and monochlorodibenzofuran were determined to be 10.8±0.5 ns and ca. 1 ns, respectively, suggesting that the fluorescence quantum yield is reduced 10-fold by intersystem crossing induced by a chlorine atom in a dibenzofuran molecule. These findings highlight the advantages of a picosecond laser for the efficient multiphoton ionization of polychlorinated dibenzofurans.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Do Quang Hoa, Tomohiro Uchimura, Totaro Imasaka, Nguyen Dai Hung,